Human Biology Lab Midterm
For microscope, pH, cells, tissues, bones, skeletal muscles, blood, and heart labs. You have 70 minutes to complete the exam once you begin.
Questions and Answers
- 1.
The axial skeleton includes:
- A.
Limbs/vertebral column
- B.
Skull
- C.
Phalanges
- D.
Skull/torso
Correct Answer
D. Skull/torsoExplanation
The axial skeleton refers to the central part of the skeleton, which includes the skull and the torso. The skull protects the brain and houses the sensory organs, while the torso consists of the rib cage and the vertebral column, providing support and protection for the vital organs such as the heart and lungs. Limbs and phalanges are part of the appendicular skeleton, which is not included in the axial skeleton.Rate this question:
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- 2.
Appendicular skeleton includes all of the following except:
- A.
Thorax
- B.
Pectoral girdle
- C.
Upper/lower limbs
- D.
Pelvic girdle
Correct Answer
A. ThoraxExplanation
The thorax is not part of the appendicular skeleton. The appendicular skeleton consists of the pectoral girdle, upper and lower limbs, and the pelvic girdle. The thorax, on the other hand, is part of the axial skeleton, which includes the skull, vertebral column, and rib cage.Rate this question:
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- 3.
What transports blood away from the heart?
- A.
Blood vessels
- B.
Arteries
- C.
Veins
- D.
Cardiovascular nerves
Correct Answer
B. ArteriesExplanation
Arteries transport blood away from the heart. They are thick-walled blood vessels that carry oxygenated blood from the heart to various parts of the body. Arteries have a muscular and elastic structure that allows them to withstand the high pressure generated by the heart's pumping action. This enables them to efficiently distribute oxygen and nutrients to the body's tissues and organs.Rate this question:
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- 4.
Simple squamous epithelium is located in:
- A.
Kidney tubules, ducts and secretory portions of small glands, and ovary surfaces
- B.
Large glands, the treachea, and most of the respiratory tract
- C.
Most of the digestive tract, uterine tubes, and some regions of the uterus
- D.
Lining of heart, blood vessels, and lungs; lining of ventral cavity
Correct Answer
D. Lining of heart, blood vessels, and lungs; lining of ventral cavity -
- 5.
Under Epithelial classification simple equals how many layers?
- A.
None
- B.
One
- C.
Multiple
Correct Answer
B. OneExplanation
Epithelial classification is based on the number of layers of cells present. The term "simple" refers to a single layer of cells. Therefore, under epithelial classification, "simple" equals one layer.Rate this question:
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- 6.
Under epithelial classification stratified equals how many layers
- A.
None
- B.
One
- C.
Multiple
Correct Answer
C. MultipleExplanation
Epithelial tissue is classified based on the number of cell layers it contains. In stratified epithelial tissue, there are multiple layers of cells stacked on top of each other. This arrangement provides protection to underlying tissues and organs. Therefore, the correct answer is "Multiple."Rate this question:
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- 7.
Under epithelial classification squamous equates to what shape?
- A.
Flat
- B.
Wide and tall
- C.
Tall and skinny
Correct Answer
A. FlatExplanation
The term "squamous" in epithelial classification refers to a flat shape. This means that the cells are thin and broad, resembling scales or tiles. Squamous epithelial cells are typically found in tissues that line surfaces such as the skin, blood vessels, and organs. They provide a protective barrier and allow for efficient diffusion of substances.Rate this question:
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- 8.
Simple cuboidal tissue is found in
- A.
Alvioli and linings of the heart
- B.
Kidney's and ovaries
- C.
Digestive tract
- D.
Upper respiratory system
- E.
Skin
- F.
Mammary glands
- G.
Urethra
Correct Answer
B. Kidney's and ovariesExplanation
Simple cuboidal tissue is found in the kidneys and ovaries. This type of tissue consists of a single layer of cube-shaped cells. It is specialized for secretion and absorption, and can be found in various glands and organs throughout the body. In the kidneys, simple cuboidal tissue lines the tubules and helps with the reabsorption of water and nutrients. In the ovaries, it forms the outer layer of the ovarian follicles, which are responsible for producing and releasing eggs.Rate this question:
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- 9.
Pseudo stratified Columnar epithelial tissue is found in
- A.
Alvioli, lining of the heart
- B.
Kidney's and ovaries
- C.
Digestive tract
- D.
Upper respiratory system
- E.
Skin
- F.
Mammary glands
- G.
Urethra
Correct Answer
D. Upper respiratory systemExplanation
Pseudo stratified Columnar epithelial tissue is found in the upper respiratory system. This type of tissue is characterized by cells that appear to be layered but are actually all attached to the basement membrane. It is found in the respiratory tract, where it helps to protect and lubricate the airways. The presence of cilia on the cells also helps to move mucus and trapped particles out of the respiratory system. This tissue type is not found in the other listed options.Rate this question:
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- 10.
Stratified squamous epithelial tissue is found in
- A.
Alvioli, lining of heart
- B.
Kidney's and ovary's
- C.
Digestive tract
- D.
Upper respiratory system
- E.
Skin
- F.
Mammary glands
- G.
Urethra
Correct Answer
E. SkinExplanation
Stratified squamous epithelial tissue is found in the skin. This tissue type is characterized by multiple layers of flat cells that provide protection against mechanical stress and external factors. The skin is the outermost layer of the body and serves as a barrier against pathogens, UV radiation, and dehydration. The presence of stratified squamous epithelial tissue in the skin helps to maintain its integrity and function as a protective barrier.Rate this question:
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- 11.
What structure should never be used with high power?
- A.
The coarse adjustment knob
- B.
The diaphragm
- C.
The fine adjustment knob
- D.
The stage
Correct Answer
A. The coarse adjustment knobExplanation
The coarse adjustment knob should never be used with high power because it moves the stage up and down in large increments, which can potentially damage the slide or the objective lens. High power magnification requires delicate and precise movements, which can be achieved with the fine adjustment knob. The coarse adjustment knob is more suitable for low power magnification, where larger movements are needed to bring the specimen into focus.Rate this question:
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- 12.
When first focusing your microscope you should use the low power objective.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
When first focusing your microscope, it is recommended to use the low power objective. This is because the low power objective provides a wider field of view and a greater depth of field, making it easier to locate and focus on the specimen. The high power objective, on the other hand, has a narrower field of view and a shallower depth of field, which can make it more difficult to locate and focus on the specimen initially. Therefore, starting with the low power objective helps in getting a clear and initial view of the specimen before switching to higher magnifications.Rate this question:
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- 13.
To calculate total magnification one should_________________magnification of the ocular lens and the objective lens.
- A.
Multiply
- B.
Add
- C.
Subtract
- D.
Divide
Correct Answer
A. MultiplyExplanation
To calculate total magnification, one should multiply the magnification of the ocular lens and the objective lens. This is because the total magnification is determined by the combined magnification of both lenses. By multiplying the magnification of the ocular lens and the objective lens, we can determine the overall magnification of the specimen being viewed through the microscope.Rate this question:
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- 14.
Which lens on the microscope is changed when the magnificatin is changed?
- A.
Contact lens
- B.
Objective lens
- C.
Super lens
- D.
Eyepiece lens
Correct Answer
B. Objective lensExplanation
When the magnification is changed on a microscope, the lens that is adjusted is the objective lens. The objective lens is located near the specimen being observed and is responsible for gathering light and forming the initial magnified image. By adjusting the objective lens, the magnification level can be increased or decreased, allowing for a closer or wider view of the specimen. The other options listed, such as contact lens, super lens, and eyepiece lens, are not relevant to the magnification adjustment on a microscope.Rate this question:
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- 15.
Identify the tissue
- A.
Simple cuboidal
- B.
Simple squamous
- C.
Simple solumnar
- D.
Stratified cuboidal
Correct Answer
A. Simple cuboidalExplanation
The correct answer is simple cuboidal. This tissue is characterized by a single layer of cube-shaped cells. It is found in areas where secretion and absorption take place, such as the lining of the kidney tubules and the ducts of certain glands. The cuboidal shape of the cells allows for efficient secretion and absorption of substances.Rate this question:
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- 16.
Identify the large cell shown in the field of view below:
Correct Answer
Neuron
neuronExplanation
The large cell shown in the field of view is a neuron. Neurons are specialized cells that transmit information through electrical and chemical signals in the nervous system. They have a distinct shape with a cell body, dendrites, and an axon. Neurons play a crucial role in processing and transmitting information in the brain and spinal cord.Rate this question:
- 17.
The function of simple squamous epithelium is protection.
- A.
True
- B.
False
Correct Answer
B. False -
- 18.
What is structure a?
- A.
Temporal
- B.
Nasal
- C.
Frontal
- D.
Parietal
Correct Answer
C. FrontalExplanation
The correct answer is "Frontal" because the question is asking about the structure "a" and the frontal lobe is one of the main structures in the brain. It is responsible for various functions such as decision making, problem-solving, and controlling voluntary movements. The other options, temporal, nasal, and parietal, are not directly related to the structure "a" mentioned in the question.Rate this question:
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- 19.
What is structure b?
- A.
Frontal
- B.
Ethmoid
- C.
Vomer
- D.
Parietal
Correct Answer
D. ParietalExplanation
The structure b is the parietal bone. The parietal bone is one of the bones that make up the skull. It forms the sides and roof of the cranial cavity, and it helps protect the brain.Rate this question:
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- 20.
What is structure c?
- A.
Temporal
- B.
Nasal
- C.
Mandible
- D.
Sphenoid
Correct Answer
B. NasalExplanation
Structure c refers to the nasal bone, which is a facial bone located in the upper part of the face. It forms the bridge of the nose and helps to support the nasal cavity. The other options, temporal, mandible, and sphenoid, are different bones in the human body and are not related to the structure c mentioned in the question.Rate this question:
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- 21.
What is structure e?
- A.
Temporal
- B.
Zygomatic
- C.
Maxillary
- D.
Frontal
Correct Answer
A. Temporal -
- 22.
What is structure i?
- A.
Ethmoid
- B.
Lacrimal Bone
- C.
Sphenoid
- D.
Mandible
Correct Answer
D. MandibleExplanation
The correct answer is Mandible. The mandible is a bone that forms the lower jaw and is the only movable bone in the skull. It plays a crucial role in various functions such as chewing, speaking, and facial expression. The other options mentioned, such as the ethmoid, lacrimal bone, and sphenoid, are all bones in the skull but they do not form the structure i.Rate this question:
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- 23.
Which part of the vertebral column allows movement such as tilting of the head and looking over the shoulder?
- A.
Sacrum
- B.
Thoracic
- C.
Lumbar
- D.
Cervical
Correct Answer
D. CervicalExplanation
The cervical part of the vertebral column allows movement such as tilting of the head and looking over the shoulder. This is because the cervical vertebrae are located in the neck region and are designed to provide flexibility and mobility to the head and neck. The cervical vertebrae have a unique structure that allows for a wide range of movement, including tilting, rotating, and bending. This mobility is essential for various activities such as turning the head to look around or tilting the head to one side.Rate this question:
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- 24.
This is an image of a _____________ bone?
- A.
Pelvis
- B.
Scapula
- C.
Patella
- D.
Cranium
Correct Answer
B. ScapulaExplanation
The correct answer is scapula. The image shows a bone that is flat and triangular in shape, with a prominent ridge called the spine. This matches the characteristics of the scapula, which is commonly known as the shoulder blade. The pelvis is a larger, more complex bone structure located in the lower part of the body. The patella is commonly known as the kneecap and is a small, round bone. The cranium refers to the skull, which is not depicted in the image.Rate this question:
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- 25.
The bone shown below represents the os coxa.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The given statement is true. The bone shown represents the os coxa, which is also known as the hip bone. It is a large, irregularly shaped bone that forms part of the pelvis. The os coxa consists of three fused bones: the ilium, ischium, and pubis. These bones provide support and protection to the pelvic organs and also serve as attachment points for muscles involved in movement and stability of the hip joint. Therefore, the statement is correct.Rate this question:
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- 26.
What is the bone between your ribs called?
- A.
Pelvis
- B.
Sacrum
- C.
Sternum
Correct Answer
C. SternumExplanation
The bone between your ribs is called the sternum. The sternum is a flat bone located in the center of the chest and it connects to the ribs through cartilage. It plays a vital role in protecting the heart, lungs, and other organs in the chest cavity.Rate this question:
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- 27.
- A.
Cranium
- B.
Phalanges
- C.
Scapula
- D.
Metacarpals
- E.
Mandible
- F.
Ulna
- G.
Humerus
- H.
Clavicle
- I.
Carpals
- J.
Ribs
- K.
Radius
- L.
Sternum
Correct Answer
B. PhalangesExplanation
The given list consists of various bones in the human body. Out of the options provided, "phalanges" is the correct answer as it refers to the bones in the fingers and toes. The other options such as "cranium" (skull), "scapula" (shoulder blade), "mandible" (jawbone), and others are also bones in the body, but they do not specifically refer to the bones in the fingers and toes like "phalanges" does.Rate this question:
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- 28.
- A.
Cranium
- B.
Phalanges
- C.
Scapula
- D.
Metacarpals
- E.
Mandible
- F.
Ulna
- G.
Humerus
- H.
Clavicle
- I.
Carpals
- J.
Ribs
- K.
Radius
- L.
Sternum
Correct Answer
G. HumerusExplanation
The humerus is a bone in the upper arm, between the shoulder and the elbow. It is the longest and largest bone in the upper limb, and it connects the scapula to the radius and ulna. The humerus plays a crucial role in arm movement and provides attachment points for muscles that control the shoulder and elbow joints. It is also involved in the support and protection of vital structures in the upper body.Rate this question:
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- 29.
Name the right amount of the three kinds of ribs.
- A.
7 True Ribs, 3 False Ribs and 2 Floating
- B.
5 True Ribs, 5 False Ribs and 2 Floating
- C.
9 True Ribs, 1 False Rib and 2 Floating Ribs
Correct Answer
A. 7 True Ribs, 3 False Ribs and 2 FloatingExplanation
The correct answer is 7 True Ribs, 3 False Ribs, and 2 Floating Ribs. This is the right amount of each type of rib in the human body. True ribs are attached directly to the sternum, false ribs are attached to the sternum indirectly through cartilage, and floating ribs are not attached to the sternum at all.Rate this question:
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- 30.
Identify bone.
Correct Answer
The Tibia
tibia
the Tibia bone
tibia bone
tibial bone
Tibial boneExplanation
The correct answer is tibia. The tibia is a bone located in the lower leg, commonly known as the shinbone. It is one of the two bones that make up the lower leg, with the other being the fibula. The tibia is larger and stronger than the fibula and plays a crucial role in supporting the body's weight and providing stability during movement.Rate this question:
- 31.
Identify bone:
Correct Answer
The Clavicle
clavicle
the clavicle bone
Clavicle bone
clavicalExplanation
The correct answer for this question is "The Clavicle, clavicle, the clavicle bone, Clavicle bone, clavical." The clavicle is a long bone that is located in the upper chest area, connecting the shoulder to the sternum. It is commonly known as the collarbone and is easily identifiable due to its S-shaped curve.Rate this question:
- 32.
The pH scale ranges from
- A.
1 to 7
- B.
1 to 20
- C.
1 to 14
- D.
1 to 10
- E.
1 to 100
Correct Answer
C. 1 to 14Explanation
The pH scale is a measure of the acidity or alkalinity of a substance. It ranges from 1 to 14, with 1 being highly acidic, 7 being neutral, and 14 being highly alkaline. This scale is based on the concentration of hydrogen ions in a solution. A pH value below 7 indicates acidity, while a value above 7 indicates alkalinity. Therefore, the correct answer is 1 to 14.Rate this question:
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- 33.
What is the range of the ph of an acid
- A.
2-4
- B.
3-10
- C.
0-6
Correct Answer
C. 0-6Explanation
The correct answer is 0-6 because the pH scale ranges from 0 to 14, with 0 being the most acidic and 14 being the most basic. An acid typically has a pH below 7, with lower numbers indicating stronger acidity. Therefore, a range of 0-6 encompasses the pH values of most acids.Rate this question:
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- 34.
Pure water is a ________ because it has a pH of 7.
- A.
Acid
- B.
Base
- C.
Neutral
- D.
Solution
Correct Answer
C. NeutralExplanation
Pure water is considered neutral because it has a pH of 7. pH is a measure of the acidity or alkalinity of a substance, with values below 7 indicating acidity, values above 7 indicating alkalinity, and a pH of 7 indicating neutrality. Since pure water has a pH of 7, it is neither acidic nor alkaline, making it a neutral substance.Rate this question:
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- 35.
Frederick tests the pH of an unidentified substance and finds its pH to be 11. This substance must be a(n) ________.
- A.
Acid
- B.
Base
- C.
Neutral
- D.
Solution
Correct Answer
B. BaseExplanation
Based on the given information, Frederick tests the pH of the unidentified substance and finds it to be 11. A pH value above 7 indicates alkalinity, and since 11 is significantly above 7, it can be concluded that the substance is a base.Rate this question:
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- 36.
What is osmosis?
- A.
Diffusion of water through a semi-permeable membrane
- B.
When you take water out of a cell
- C.
When you put water into the cell
Correct Answer
A. Diffusion of water through a semi-permeable membraneExplanation
Osmosis refers to the process of water molecules moving from an area of lower solute concentration to an area of higher solute concentration through a semi-permeable membrane. This movement occurs in order to equalize the concentration of solutes on both sides of the membrane. Therefore, the correct answer is "Diffusion of water through a semi-permeable membrane."Rate this question:
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- 37.
A new nurse starts working in the hospital. She is responsible for giving you an IV. She gives you a solution of 100% water (instead of the correct solution with 0.9% salt water). Why is this harmful to your blood cells?
- A.
Water will leave your blood cells, causing them to shrivel up
- B.
Water will enter your blood cells until they burst
- C.
Nothing will happen, she is a great nurse
Correct Answer
B. Water will enter your blood cells until they burst -
- 38.
How do muscles change when they work?
- A.
They contract - get shorter
- B.
They expand - relax
- C.
They get longer
- D.
They loosen up
Correct Answer
A. They contract - get shorterExplanation
When muscles work, they undergo a process called contraction, which causes them to get shorter in length. This contraction is the result of the muscle fibers sliding past each other, causing the overall muscle to shorten. This change in length allows the muscles to generate force and perform various movements in the body.Rate this question:
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- 39.
What powerful muscle is located on top of your humerus?
- A.
Calf muscle
- B.
Hamstring
- C.
Abdominals
- D.
Bicep
Correct Answer
D. BicepExplanation
The bicep is the correct answer because it is a powerful muscle that is located on top of the humerus bone. It is responsible for flexing the elbow joint and rotating the forearm. The calf muscle, hamstring, and abdominals are not located on top of the humerus bone, making them incorrect answers.Rate this question:
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- 40.
Which of the following is a joint that allows movement in only one direction?
- A.
Ball and socket
- B.
Hinge
- C.
Pivot
- D.
Gliding
Correct Answer
B. HingeExplanation
A hinge joint is a type of joint that allows movement in only one direction, typically back and forth like a door hinge. This type of joint is found in the elbows and knees, allowing for flexion and extension but limiting movement in other directions. Unlike ball and socket joints, pivot joints, and gliding joints, hinge joints have a more restricted range of motion, making them suitable for specific movements and functions in the body.Rate this question:
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- 41.
Which one is the Tibialis Anterior?
- A.
F
- B.
G
- C.
H
- D.
I
- E.
J
Correct Answer
D. IExplanation
The Tibialis Anterior is a muscle located in the front of the lower leg. It is responsible for dorsiflexion, which is the movement that lifts the foot upwards towards the shin. In the given options, option I represents the Tibialis Anterior.Rate this question:
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- 42.
Which one is the Pectoralis Major?
- A.
A
- B.
B
- C.
C
- D.
D
- E.
E
Correct Answer
B. BExplanation
The correct answer is B because the Pectoralis Major is a large muscle located in the chest area. It is responsible for movements such as flexion, adduction, and medial rotation of the arm. In the given options, B is the only one that represents a muscle in the chest area.Rate this question:
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- 43.
Which one is the Bicps Brachii?
- A.
L
- B.
M
- C.
N
- D.
O
- E.
P
Correct Answer
E. PExplanation
The correct answer is P. The question is asking for the identification of the Biceps Brachii muscle. The Biceps Brachii is a muscle located in the upper arm, and it is responsible for flexing the elbow joint and rotating the forearm. Since P is the only option provided, it can be inferred that P represents the Biceps Brachii muscle.Rate this question:
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- 44.
Which one is the Deltoid?
- A.
K
- B.
L
- C.
M
- D.
N
- E.
O
Correct Answer
E. OExplanation
The correct answer is O because a deltoid is a geometric shape that resembles a kite or a diamond. Among the given options, O is the only one that resembles a deltoid shape.Rate this question:
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- 45.
Which one is the Trapezius?
- A.
K
- B.
L
- C.
M
- D.
N
- E.
O
Correct Answer
D. NExplanation
The Trapezius is a large muscle that extends from the base of the skull to the upper back and shoulders. It is shaped like a trapezoid, hence the name. In the given options, N is the correct answer as it represents the Trapezius muscle.Rate this question:
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- 46.
Which one is the Gastrocnemius?
- A.
F
- B.
G
- C.
H
- D.
I
- E.
J
Correct Answer
E. JExplanation
The Gastrocnemius is a muscle located in the calf of the leg. Option J is the correct answer as it is the only option that represents a part of the human leg.Rate this question:
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- 47.
Which one is the Rectus Abdominis?
- A.
A
- B.
B
- C.
C
- D.
D
- E.
E
Correct Answer
E. EExplanation
The correct answer is E because the Rectus Abdominis is a paired muscle located in the front of the abdomen, running vertically from the pubic symphysis to the sternum. It is commonly referred to as the "six-pack" muscle as it is responsible for the appearance of abdominal definition when well-developed.Rate this question:
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- 48.
What are the four blood types?
- A.
A,B,C,D
- B.
A,B,AB,O
- C.
AB,AC,O B
- D.
OB,C,A,O
Correct Answer
B. A,B,AB,OExplanation
The four blood types are A, B, AB, and O. These blood types are determined by the presence or absence of certain antigens on the surface of red blood cells. Type A blood has A antigens, type B blood has B antigens, type AB blood has both A and B antigens, and type O blood has neither A nor B antigens. These blood types are important in determining compatibility for blood transfusions and organ transplants.Rate this question:
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- 49.
The other test, conducted in your blood typing activity, tested for the presence (+) or absence (-) of what?
- A.
Super antigen
- B.
Rh factor
- C.
Rn Factor
- D.
There is no other name
Correct Answer
B. Rh factorExplanation
The correct answer is Rh factor. In blood typing, the Rh factor is tested to determine whether a person's blood is Rh positive (+) or Rh negative (-). The Rh factor is a protein found on the surface of red blood cells and is important in blood transfusions and during pregnancy.Rate this question:
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- 50.
Person from blood group A can donate blood to which group?
- A.
A and B
- B.
AB and O
- C.
A and AB
Correct Answer
C. A and ABExplanation
A person with blood group A can donate blood to individuals with blood group A and AB. This is because blood group A has antigens A on the red blood cells, which can be recognized by the antibodies present in the blood of individuals with blood group A and AB. Therefore, individuals with blood group A can safely donate blood to both A and AB blood groups.Rate this question:
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.jpg "Identify the large cell shown in the field of view below:")
.jpg "This is an image of a _____________ bone?")
.jpg "The bone shown below represents the os coxa.")
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