Miladys Cosmetology Exam Review Ch1-16 Partii
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Questions and Answers
- 1.
Hydrogen chemical hair relaxers break disulfide bonds and during rinsing convert them to:
- A.
COHNS bonds
- B.
Protein bonds
- C.
Sebum bonds
- D.
Lanthionine bonds
Correct Answer
D. Lanthionine bondsExplanation
Hydrogen chemical hair relaxers break disulfide bonds, which are responsible for the natural curl pattern of the hair. During rinsing, these broken disulfide bonds are converted to lanthionine bonds. Lanthionine bonds are formed when the sulfur atoms from two adjacent cysteine amino acids in the hair combine with the hydrogen atoms from the relaxer. These new bonds are weaker than disulfide bonds, resulting in a permanent straightening effect on the hair. Therefore, the correct answer is lanthionine bonds.Rate this question:
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- 2.
Extremely curly hair may often break or knot easily due to:
- A.
Humidity
- B.
Density
- C.
High elasiticity
- D.
Low elasticity
Correct Answer
D. Low elasticityExplanation
Extremely curly hair may often break or knot easily due to its low elasticity. Low elasticity means that the hair has difficulty stretching and returning to its original shape, making it more prone to breakage and tangling. This lack of flexibility in the hair strands can be caused by various factors such as heat damage, chemical treatments, or genetic factors. Therefore, low elasticity is a common reason for the fragility and difficulty in managing extremely curly hair.Rate this question:
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- 3.
Hair texture is classified as:
- A.
Coarse, medium, or fine
- B.
Coarse, straight or curly
- C.
Large or small diameter
- D.
Long, medium or short
Correct Answer
A. Coarse, medium, or fineExplanation
Hair texture refers to the thickness or diameter of individual hair strands. It can be classified into three categories: coarse, medium, or fine. Coarse hair has a larger diameter and is generally thicker and stronger. Medium hair falls in between coarse and fine hair, with a moderate diameter. Fine hair, on the other hand, has a smaller diameter and is generally more delicate and prone to breakage. This classification helps in understanding the characteristics and needs of different hair types for appropriate care and styling.Rate this question:
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- 4.
Chemical services performed on hair with low porosity require:
- A.
Neutral solutuions
- B.
More acidic solutions
- C.
More alkaline solutions
- D.
Water solutuions
Correct Answer
C. More alkaline solutionsExplanation
Hair with low porosity has tightly closed cuticles, making it difficult for moisture and chemicals to penetrate. More alkaline solutions have a higher pH level, which helps to open the cuticles and allow the chemicals to penetrate the hair shaft. This is why more alkaline solutions are required for chemical services on low porosity hair.Rate this question:
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- 5.
Wet hair with normal elasticity will stretch up to:
- A.
25 percent
- B.
40 percent
- C.
50 percent
- D.
70 percent
Correct Answer
C. 50 percentExplanation
Wet hair with normal elasticity will stretch up to 50 percent. This means that when wet hair is pulled, it can stretch up to half of its original length before returning to its original shape. This is a characteristic of healthy hair that has the ability to withstand some tension without breaking or becoming damaged.Rate this question:
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- 6.
Hair that is non pigmented and almost never has a medulla is:
- A.
Oily
- B.
Pigmented
- C.
Dark
- D.
Vellus
Correct Answer
D. VellusExplanation
Vellus hair is non pigmented and almost never has a medulla. Vellus hair is fine, short, and usually covers the majority of the body. It is often referred to as "peach fuzz" and is commonly found on areas such as the face, arms, and back. Unlike terminal hair, which is thicker and darker, vellus hair is typically colorless or very light in color. This type of hair is more common in women and children.Rate this question:
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- 7.
Long, soft hair found on the scalp, legs, arms, and bodies of males and females is:
- A.
Average
- B.
Scabies
- C.
Terminal
- D.
Vellum
Correct Answer
C. TerminalExplanation
Terminal hair refers to the long, thick, and pigmented hair that grows on the scalp, legs, arms, and bodies of both males and females. It is the opposite of vellus hair, which is short, fine, and unpigmented. Terminal hair is typically the type of hair that develops during puberty and is influenced by hormones. It is the type of hair that most people have on their heads and other parts of their bodies, such as the armpits and pubic area. Scabies is a skin infestation caused by mites, and vellum refers to a type of fine parchment.Rate this question:
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- 8.
The phases of hair growh are anagen, catagen, and :
- A.
Telogen
- B.
Melanin
- C.
Repeated
- D.
Carbuncle
Correct Answer
A. TelogenExplanation
The phases of hair growth are anagen, catagen, and telogen. Anagen is the active growth phase where the hair follicle produces new cells and the hair grows longer. Catagen is a transitional phase where the hair follicle shrinks and detaches from the blood supply. Telogen is the resting phase where the hair follicle remains dormant and eventually sheds the old hair. Therefore, telogen is the correct answer as it completes the sequence of the hair growth phases.Rate this question:
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- 9.
The growth phase where new hair is produced is:
- A.
Transition
- B.
Telogen
- C.
Anagen
- D.
Regular
Correct Answer
C. AnagenExplanation
The growth phase where new hair is produced is called anagen. During this phase, the hair follicles are actively producing new cells, which leads to the growth of new hair strands. This phase can last for several years, and it is an essential part of the hair growth cycle.Rate this question:
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- 10.
The final or resting phase in the hair growth cycle is:
- A.
Broken stage
- B.
Telogen stage
- C.
Anagen stage
- D.
Hypertrichosis stage
Correct Answer
B. Telogen stageExplanation
The correct answer is telogen stage. The hair growth cycle consists of three phases: anagen, catagen, and telogen. During the telogen stage, the hair follicle is in a resting phase and no new hair growth occurs. This stage can last for several weeks to several months before the hair sheds and a new hair begins to grow in the anagen phase.Rate this question:
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- 11.
In general, the cross sections of curly hair can be:
- A.
Oval
- B.
Triangular
- C.
Even
- D.
Square
Correct Answer
B. TriangularExplanation
Curly hair can have various cross sections, including oval, triangular, even, and square. The correct answer in this case is "triangular." This suggests that the cross section of curly hair often has a triangular shape.Rate this question:
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- 12.
The term used to identify abnormal hair loss is;
- A.
Androgenic
- B.
Alopecia
- C.
Areata
- D.
Genetic
Correct Answer
B. AlopeciaExplanation
Alopecia is the term used to identify abnormal hair loss. It refers to a condition where a person experiences partial or complete hair loss, which can be temporary or permanent. This can be caused by various factors such as genetics, hormonal changes, autoimmune diseases, or certain medical treatments. Androgenic alopecia specifically refers to hair loss caused by hormonal imbalances, while alopecia areata refers to a specific type of hair loss characterized by patchy bald spots. Therefore, the correct answer is alopecia.Rate this question:
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- 13.
The sudden falling out of hair in round patches or baldness in spots is called:
- A.
Terminal hair
- B.
Hypertrichosis
- C.
Alopecia areata
- D.
Alopecia androgenic
Correct Answer
C. Alopecia areataExplanation
Alopecia areata refers to the sudden falling out of hair in round patches or baldness in spots. This condition is characterized by the immune system mistakenly attacking the hair follicles, resulting in hair loss. It can occur on the scalp or other areas of the body, and the exact cause is unknown. Treatment options for alopecia areata include corticosteroid injections, topical medications, and hair transplant surgery.Rate this question:
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- 14.
Two products approved by the FDA to stimulate hair growth and allowed for sale in the USA are:
- A.
Minoxidil and finasteride
- B.
Tinea and medication
- C.
Conditioning and rogain
- D.
Finasteride and antiseptics
Correct Answer
A. Minoxidil and finasterideExplanation
Minoxidil and finasteride are two products that have been approved by the FDA for stimulating hair growth and are allowed for sale in the USA. Minoxidil is a topical solution that is applied directly to the scalp, while finasteride is an oral medication. Both of these products have been shown to be effective in promoting hair growth in individuals with certain types of hair loss. Therefore, they are the correct answer to the question.Rate this question:
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- 15.
The technical term used to describe grey hair is:
- A.
Albinos
- B.
Acquired
- C.
Alopecia
- D.
Canities
Correct Answer
D. CanitiesExplanation
Canities is the correct answer because it is the technical term used to describe grey hair. It refers to the loss of pigment in the hair, resulting in a grey or white color. Albinos refers to individuals who lack pigment in their hair, skin, and eyes. Acquired is a general term that does not specifically describe grey hair. Alopecia refers to hair loss, which is different from the greying of hair.Rate this question:
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- 16.
Trichorrhexis nodosa is characterized by brittleness of the hair and the formation of:
- A.
Swellings along the hair shaft
- B.
Split ends along the hair shaft
- C.
Lubricated dry ends
- D.
Alternating bands of hair color
Correct Answer
A. Swellings along the hair shaftExplanation
Trichorrhexis nodosa is a hair condition characterized by brittleness and the formation of swellings along the hair shaft. These swellings weaken the hair and make it prone to breakage. Split ends along the hair shaft can also be a symptom of this condition. Lubricated dry ends and alternating bands of hair color are not associated with trichorrhexis nodosa.Rate this question:
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- 17.
The technical term used to describe beaded hair is:
- A.
Monilethrix
- B.
Monoglycerine
- C.
Finasteride
- D.
Fragile
Correct Answer
A. MonilethrixExplanation
Monilethrix is the correct technical term used to describe beaded hair. This condition is characterized by hair shaft abnormalities, resulting in hair that appears beaded or moniliform. It is a rare genetic disorder that causes the hair to be fragile and prone to breakage. Monoglycerine, finasteride, and fragile are not the correct terms for this condition.Rate this question:
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- 18.
The medical term for dandruff is
- A.
Canities
- B.
Pityriasis
- C.
Alopecia
- D.
Simpled
Correct Answer
B. PityriasisExplanation
Pityriasis is the medical term for dandruff. It refers to a common scalp condition characterized by flaking and itching of the skin. Pityriasis is caused by the overgrowth of a yeast-like fungus called Malassezia, which leads to an inflammatory response in the scalp. This condition can be managed with medicated shampoos and topical treatments to reduce the symptoms of dandruff.Rate this question:
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- 19.
The medical term used to describe fungal organism characterized by itching scales and painful circular lesions is:
- A.
Scapular
- B.
Sevorrheic
- C.
Tinea
- D.
Alopecia
Correct Answer
C. TineaExplanation
Tinea is the correct answer because it is the medical term used to describe a fungal organism characterized by itching scales and painful circular lesions. It is commonly known as ringworm and can affect various parts of the body, including the scalp, body, feet, and nails. Tinea is highly contagious and can spread through direct contact with an infected person or an infected object. Treatment usually involves antifungal medications to eliminate the fungus and relieve symptoms.Rate this question:
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- 20.
The type of fungal infection characterized by red papules at the opening of the hair follicles is:
- A.
Tinea capitis
- B.
Pediculosis
- C.
Steatoides
- D.
Pityriasis
Correct Answer
A. Tinea capitisExplanation
Tinea capitis is a type of fungal infection that affects the scalp and hair follicles. It is characterized by the presence of red papules at the opening of the hair follicles. This condition is commonly seen in children and can cause hair loss, itching, and inflammation. Pediculosis refers to a lice infestation, steatoides is not a recognized medical term, and pityriasis refers to a group of skin conditions characterized by flaking and scaling. Therefore, the correct answer for the given question is tinea capitis.Rate this question:
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- 21.
An acute localized bacterial infection of the hair follice that produces constant pain is:
- A.
A furuncle
- B.
Scabies
- C.
Pediculosis
- D.
Carbuncle
Correct Answer
A. A furuncleExplanation
A furuncle is an acute localized bacterial infection of the hair follicle that causes constant pain. It is commonly known as a boil and is characterized by a painful, red, and swollen lump filled with pus. This infection is usually caused by the bacteria Staphylococcus aureus, which enters the skin through a cut or break. Furuncles can occur anywhere on the body but are commonly found on the face, neck, armpits, and buttocks. If left untreated, the infection can spread and lead to complications.Rate this question:
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- 22.
A inflammation of the subcutaneous tissue caused by staphylococci is:
- A.
A carbuncle
- B.
Pediculosis
- C.
Anagen
- D.
Alopecia
Correct Answer
A. A carbuncleExplanation
A carbuncle is a skin infection characterized by inflammation of the subcutaneous tissue caused by staphylococci bacteria. It typically presents as a painful, red, swollen lump filled with pus. The infection can spread and cause fever and other systemic symptoms. Treatment usually involves antibiotics and sometimes surgical drainage. Pediculosis refers to an infestation of lice, anagen is a phase of hair growth, and alopecia refers to hair loss.Rate this question:
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- 23.
The study of substances that contain carbon is reffered to as:
- A.
Inorganic chemistry
- B.
Chemical composition
- C.
Organic chemistry
- D.
Natural products
Correct Answer
C. Organic chemistryExplanation
Organic chemistry is the study of substances that contain carbon. This field focuses on the structure, properties, composition, reactions, and synthesis of carbon-based compounds. It plays a crucial role in understanding and developing various fields such as pharmaceuticals, materials science, biochemistry, and environmental science. Inorganic chemistry, on the other hand, deals with the study of compounds that do not contain carbon. Chemical composition refers to the arrangement and proportions of elements in a substance, while natural products typically refer to compounds derived from natural sources.Rate this question:
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- 24.
Metals, minerals, water, and air are examples of:
- A.
Natural substances
- B.
Inorganic substances
- C.
Compounds
- D.
Proteins
Correct Answer
B. Inorganic substancesExplanation
Metals, minerals, water, and air are all examples of inorganic substances. Inorganic substances are those that do not contain carbon and are not derived from living organisms. These substances are typically found in nature and are essential for various processes and functions. Metals and minerals are naturally occurring elements or compounds, while water and air are essential components of the Earth's environment. Therefore, the correct answer is inorganic substances.Rate this question:
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- 25.
A basic substance that cannot be broken down into simpler substances without loss of identity is called:
- A.
A compound
- B.
Water
- C.
A molecule
- D.
An element
Correct Answer
D. An elementExplanation
An element is a basic substance that cannot be broken down into simpler substances without losing its identity. Elements are made up of atoms of the same type and have distinct chemical and physical properties. Unlike compounds, which are made up of two or more different elements, elements exist in their pure form and cannot be further broken down into simpler substances. Therefore, an element is the correct answer to the question.Rate this question:
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- 26.
Substances cthat cannot be divided into simpler substances by oridnary chemical means are:
- A.
Atoms
- B.
Inorganic
- C.
Chemical
- D.
Atomic
Correct Answer
A. AtomsExplanation
Atoms are the smallest unit of matter that retains the properties of an element. They cannot be divided into simpler substances by ordinary chemical means because they are already the fundamental building blocks of matter. Inorganic and chemical substances can be further broken down into simpler components, but atoms themselves are indivisible. Therefore, atoms are the correct answer to the question.Rate this question:
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- 27.
Normal matter exists in three different physical states, which are solid gas and:
- A.
Liquid
- B.
Organic
- C.
Air
- D.
Solute
Correct Answer
A. LiquidExplanation
Normal matter exists in three different physical states, which are solid, gas, and liquid. The options given are "organic," "air," and "solute." Among these options, only "liquid" fits the description of a physical state of matter. "Organic" refers to compounds containing carbon, "air" is a mixture of gases, and "solute" refers to a substance that is dissolved in a solvent. Therefore, the correct answer is "liquid."Rate this question:
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- 28.
A change in a substances chemical composition is a:
- A.
Natural change
- B.
Chemical change
- C.
Chemical mixture
- D.
Chemical syntheseis
Correct Answer
B. Chemical changeExplanation
A change in a substance's chemical composition refers to a chemical change. This type of change involves the rearrangement of atoms and the formation of new chemical bonds, resulting in a different substance with different properties. Unlike physical changes, which only affect the physical state or appearance of a substance, chemical changes involve a transformation at the molecular level. Therefore, the correct answer is chemical change.Rate this question:
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- 29.
Physical mixtures containing two or more different substances are:
- A.
Suspensions, chemicals, and matter
- B.
Solutions, suspensions, and emulsions
- C.
Compounds physical matter and water
- D.
Minerals compounds and emulsions
Correct Answer
B. Solutions, suspensions, and emulsionsExplanation
Physical mixtures containing two or more different substances can exist in the form of solutions, suspensions, and emulsions. Solutions are homogeneous mixtures where the particles of the different substances are evenly distributed at a molecular level. Suspensions are heterogeneous mixtures where the particles of one substance are dispersed throughout another substance, but they are not dissolved and can settle over time. Emulsions are also heterogeneous mixtures, but they consist of two immiscible liquids, where one liquid is dispersed as tiny droplets within the other liquid.Rate this question:
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- 30.
A substance that dissolves another substance with no charge in chemical composisiton is a:
- A.
Solute
- B.
Mineral
- C.
Solvent
- D.
Mixture
Correct Answer
C. SolventExplanation
A substance that dissolves another substance with no charge in chemical composition is called a solvent. Solvents are capable of dissolving solutes, which are substances that are being dissolved. Solvents have the ability to break down the bonds between the molecules of solutes, allowing them to mix together evenly. This process is known as dissolution. Solvents are commonly used in various applications such as cleaning, manufacturing, and scientific research.Rate this question:
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- 31.
Miscible liquids are liquids that can be:
- A.
Mixed without shaking
- B.
Mixed into stable solutions
- C.
Transformed into a suspension
- D.
Combined without a solvent
Correct Answer
B. Mixed into stable solutionsExplanation
Miscible liquids are liquids that have the ability to mix and form a homogeneous solution without the need for shaking or the addition of a solvent. This means that when these liquids are combined, they will blend together completely and form a stable solution where the individual components are uniformly distributed. This is in contrast to immiscible liquids, which do not mix and instead form separate layers or droplets. Therefore, the correct answer is that miscible liquids can be mixed into stable solutions.Rate this question:
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- 32.
Liquids that are not capable of being mixed into stable solutions are:
- A.
Solutes
- B.
Solvents
- C.
Inverted
- D.
Immiscible
Correct Answer
D. ImmiscibleExplanation
Immiscible refers to liquids that are not capable of being mixed into stable solutions. This means that when two immiscible liquids are combined, they will separate into distinct layers rather than forming a homogeneous mixture. This occurs because the intermolecular forces between the molecules of the two liquids are not strong enough to overcome the forces within each individual liquid. As a result, the liquids remain separate, with one floating on top of the other.Rate this question:
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- 33.
Solutuions that contain undissolved particles that are visible to the naked eye are known as:
- A.
Suspensions
- B.
Mixtures
- C.
Solutes
- D.
Molecules
Correct Answer
A. SuspensionsExplanation
Suspensions are solutions that contain undissolved particles that can be seen with the naked eye. These particles are typically larger and do not dissolve in the solvent. Suspensions can be separated through methods such as filtration or settling. In contrast, mixtures refer to the combination of two or more substances that are not chemically bonded. Solutes are substances that dissolve in a solvent, while molecules are the smallest unit of a compound that retains its chemical properties.Rate this question:
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- 34.
A mixture of two or more immiscible substances united with the aid of a binder is known as an:
- A.
Suspension
- B.
Emulsion
- C.
Mixture
- D.
Solution
Correct Answer
B. EmulsionExplanation
An emulsion is a mixture of two or more immiscible substances that are combined with the help of a binder. In an emulsion, the substances are finely dispersed throughout each other, creating a stable mixture. This is different from a suspension, where the particles are not dissolved but rather suspended in a liquid and may settle over time. A solution, on the other hand, is a homogeneous mixture where the solute is completely dissolved in the solvent. Therefore, the correct answer for this question is emulsion.Rate this question:
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- 35.
A substance that acts as a bridge to allow oil and water to mix or emulsify is an:
- A.
Active agent
- B.
Surfactant
- C.
Alkaline
- D.
Deionization
Correct Answer
B. SurfactantExplanation
A surfactant is a substance that acts as a bridge between oil and water, allowing them to mix or emulsify. Surfactants have a unique structure that consists of both hydrophilic (water-loving) and hydrophobic (water-repelling) parts. The hydrophilic part attracts water molecules, while the hydrophobic part attracts oil molecules. This dual nature of surfactants allows them to lower the surface tension between oil and water, enabling them to mix together. Therefore, a surfactant is the correct answer in this case.Rate this question:
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- 36.
Ther water loving head of a surfactant molecule is:
- A.
Hydrogen
- B.
Lipophilic
- C.
Hydrophilic
- D.
Neutral
Correct Answer
C. HydrophilicExplanation
The water-loving head of a surfactant molecule is hydrophilic. This means that it has an affinity for water and can dissolve or mix well with it. Surfactant molecules are composed of a hydrophilic head and a hydrophobic tail. The hydrophilic head attracts water molecules, while the hydrophobic tail repels water and is attracted to nonpolar substances. This property allows surfactants to reduce the surface tension of water and enable it to spread and penetrate substances that it would not normally be able to.Rate this question:
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- 37.
Acids owe their chemical reactivity to the:
- A.
Chemical compounds
- B.
Hydrogen ion
- C.
Hydrogen peroxide
- D.
Neutralization solute
Correct Answer
B. Hydrogen ionExplanation
Acids owe their chemical reactivity to the hydrogen ion. When an acid dissolves in water, it releases hydrogen ions (H+). These hydrogen ions are responsible for the acidic properties of the solution, such as its ability to react with other substances. The hydrogen ions can donate a proton to other compounds, causing chemical reactions to occur. This reactivity is what gives acids their characteristic properties, such as their sour taste, ability to corrode metals, and ability to turn litmus paper red.Rate this question:
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- 38.
The rapid oxidation of any substance accompanied by heat or light is:
- A.
Oxygen
- B.
Combustion
- C.
Protons
- D.
Electricity
Correct Answer
B. CombustionExplanation
Combustion refers to the rapid oxidation of any substance accompanied by heat or light. It is a chemical reaction between a fuel and an oxidant, usually oxygen, resulting in the release of energy in the form of heat and light. This process is commonly observed in burning processes such as fire, where the fuel combines with oxygen to produce carbon dioxide, water, and other byproducts. Protons, electricity, and oxygen are not directly related to the concept of combustion.Rate this question:
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- 39.
A substance that has a pH above 7.0 is considered to be an:
- A.
Neutral solution
- B.
Acid solution
- C.
Alkali solution
- D.
Reducting solution
Correct Answer
C. Alkali solutionExplanation
A substance with a pH above 7.0 is considered to be an alkali solution. pH is a measure of the acidity or alkalinity of a substance, with values below 7.0 indicating acidity, 7.0 indicating neutrality, and values above 7.0 indicating alkalinity. Therefore, a substance with a pH above 7.0 is alkaline in nature and is classified as an alkali solution.Rate this question:
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- 40.
A sweet colorless oily substance used as a moisturizer ingredient in cosmetic product is:
- A.
Glycerin
- B.
Moisturizing
- C.
Ointment
- D.
Compound
Correct Answer
A. GlycerinExplanation
Glycerin is a sweet colorless oily substance commonly used as a moisturizer ingredient in cosmetic products. It helps to hydrate and soften the skin by attracting and retaining moisture. Glycerin acts as a humectant, drawing water from the environment and binding it to the skin, thus improving its moisture balance. It is a popular ingredient in various skincare products, including lotions, creams, and serums, due to its moisturizing properties.Rate this question:
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- 41.
The chemical reation in which the oxidizing agent is reduced and the reducing agent is oxidized is:
- A.
Redox
- B.
Reducing
- C.
Neutral
- D.
Solute
Correct Answer
A. RedoxExplanation
In a redox reaction, the oxidizing agent gains electrons and is reduced, while the reducing agent loses electrons and is oxidized. This process involves the transfer of electrons between the reactants, resulting in a change in oxidation states. Therefore, the correct answer is redox.Rate this question:
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- 42.
Electic current that is constance, even flowing and travels in one direction is:
- A.
Direct current
- B.
Direct volt
- C.
Converter
- D.
Active current
Correct Answer
A. Direct currentExplanation
Direct current is a type of electric current that flows in one direction continuously and maintains a constant flow. Unlike alternating current (AC), which periodically changes direction, direct current (DC) provides a steady and uninterrupted flow of electricity. It is commonly used in batteries, electronic devices, and certain power systems where a consistent and stable current is required.Rate this question:
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- 43.
The device that changes direct current to alternating current is an:
- A.
Convex
- B.
Converter
- C.
Voltage
- D.
Ohm
Correct Answer
B. ConverterExplanation
A converter is the device that changes direct current to alternating current. This device is commonly used in power electronics to convert the voltage level and waveform of electrical power. It is essential in many applications, such as inverter systems for solar power generation, electric vehicle charging, and uninterruptible power supplies. The converter allows the transfer of electrical energy from a DC source to an AC load, enabling the efficient transmission and utilization of power.Rate this question:
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- 44.
The unit that meaures the amount of electric current is an:
- A.
Battery
- B.
Volt
- C.
Ampere
- D.
Charger
Correct Answer
C. AmpereExplanation
The correct answer is ampere. Ampere is the unit that measures the amount of electric current. It is named after the French physicist André-Marie Ampère, who made significant contributions to the field of electromagnetism. A battery is a device that stores and releases electrical energy, while a volt is the unit of electric potential difference. A charger is a device used to replenish the energy in a battery.Rate this question:
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- 45.
The current that is used for facial and scalp treatments is measured in:
- A.
Milliamperes
- B.
Direct current
- C.
Wattage
- D.
Voltage
Correct Answer
A. MilliamperesExplanation
The current used for facial and scalp treatments is measured in milliamperes. Milliamperes (mA) is a unit of electric current that is equal to one thousandth of an ampere. It is commonly used in low-level electrical treatments for the face and scalp, such as microcurrent therapy or galvanic treatments. Milliamperes are used because they provide a safe and controlled level of current that is suitable for these delicate areas of the body. Direct current, wattage, and voltage are not used to measure the current for facial and scalp treatments.Rate this question:
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- 46.
An applicator that is used for directing the electric current form the machine to the clients skin is called an:
- A.
Streamer
- B.
Anaphoresis
- C.
Polarity
- D.
Electrode
Correct Answer
D. ElectrodeExplanation
An electrode is a device that is used for directing the electric current from the machine to the client's skin. It acts as a conductor and helps in the transmission of electrical energy. Electrodes are commonly used in various electrical and medical applications, including electrotherapy and electrochemical reactions.Rate this question:
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- 47.
The positive electode of an electotherapy device is called an:
- A.
Frequency
- B.
Anode
- C.
Vaporizer
- D.
Accelerating
Correct Answer
B. AnodeExplanation
An anode is the positive electrode of an electotherapy device. It is responsible for attracting negatively charged ions or electrons during the flow of electric current. The anode plays a crucial role in the functioning of the device by facilitating the desired therapeutic effects.Rate this question:
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- 48.
The negative electrode of an electrotherapy device is called an:
- A.
Cathode
- B.
Electron
- C.
Carbon
- D.
Therapeutic
Correct Answer
A. CathodeExplanation
The correct answer is cathode because in an electrotherapy device, the negative electrode is called the cathode. The cathode is responsible for attracting positively charged ions and delivering them to the targeted area of the body. This helps to stimulate nerves, muscles, or tissues and provide therapeutic benefits.Rate this question:
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- 49.
The most commonly used modality that is a constant and direct current is:
- A.
Indirect current
- B.
Active current
- C.
Galvanic current
- D.
Tesla current
Correct Answer
C. Galvanic currentExplanation
The correct answer is galvanic current. Galvanic current is a commonly used modality in which a constant and direct current is applied to the body. It is often used in electrotherapy for various therapeutic purposes such as pain management, tissue healing, and muscle stimulation. Galvanic current works by delivering a low-voltage electrical current through the skin, which can have effects on the underlying tissues and nerves. This modality is widely used in physical therapy and rehabilitation settings.Rate this question:
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- 50.
The process of introducing water soluble products into the skin with the use of electric current is called:
- A.
Chemical reaction
- B.
Inactive electrodes
- C.
Iontophoresis
- D.
Electrodes
Correct Answer
C. IontophoresisExplanation
Iontophoresis is the process of introducing water soluble products into the skin using electric current. It involves the use of electrodes to deliver the product into the skin. This method is commonly used in medical and cosmetic treatments to deliver medications or other substances directly to the desired area of the skin. The electric current helps to enhance the absorption of the product, making it more effective.Rate this question:
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Mar 21, 2023Quiz Edited by
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Oct 19, 2012Quiz Created by
Awellner
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