Anatomy & Physiology Unit 2

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1/79 Questions

Select all which apply to Integument:
- Varying thickness by location
- Cover internal surfaces
- 2nd largest organ
- Covers external surfaces, but continuous with mucous membranes of cavities
- Great regeneration abilities
- Universal thickness
- Largest organ

About This Quiz

Explore the structure and functions of the human skin in 'Anatomy & Physiology Unit 2'. This quiz covers key topics such as skin layers, epidermis characteristics, and cellular composition, enhancing understanding of the integumentary system.

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2.

The following, wandering, specialized macrophage that phagocytizes pathogen is what type of epidermal cell?
- Langerhan
- Merkel
- Melanocyte
- Keratinocyte
Correct Answer

A. Langerhan

Explanation

Langerhans cells are specialized macrophages that are found in the epidermis of the skin. They play a crucial role in the immune system by phagocytizing pathogens and presenting antigens to T cells. Therefore, Langerhans cells are the correct answer for this question.

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3.

The first arrow pointing at the thickest layer is pointing to the?
- Epidermis
- Dermis
- Hypodermis
Correct Answer

A. Dermis

Explanation

The first arrow is pointing at the thickest layer, which is the dermis. The dermis is the middle layer of the skin, located between the epidermis (outer layer) and the hypodermis (innermost layer). It is composed of connective tissue, blood vessels, nerves, and various structures such as hair follicles and sweat glands. The dermis provides strength, elasticity, and support to the skin, and plays a crucial role in regulating body temperature and protecting underlying tissues.

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4.

The deepest purple arrow pointing to the "bubbly" yellow layer is pointing to the?
- Epidermis
- Dermis
- Hypodermis
Correct Answer

A. Hypodermis

Explanation

The deepest purple arrow is pointing to the hypodermis. The hypodermis is the deepest layer of the skin, located below the dermis. It is composed of fat cells and connective tissue, and its main function is to insulate and cushion the body.

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5.

This layer is?
- Epidermis
- Dermis
- Hypodermis
Correct Answer

A. Epidermis

Explanation

The epidermis is the outermost layer of the skin. It acts as a protective barrier against environmental factors and helps regulate body temperature. It is composed of multiple layers of cells, including the outermost layer of dead skin cells called the stratum corneum. The epidermis also contains melanocytes, which produce the pigment melanin responsible for skin color. Overall, the epidermis plays a vital role in maintaining the integrity and function of the skin.

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6.

The center "beige coloured" part is the? and its function?
- Cuticle: single layer of squamous cells karatinized
- Cortex: thickest layer; hard keratin; pigmented
- Medulla: central core with loosely arranged cells in air/fluid, soft keratin, pigmented
Correct Answer

A. Medulla: central core with loosely arranged cells in air/fluid, soft keratin, pigmented

Explanation

The center "beige coloured" part is called the medulla. Its function is to provide structural support to the hair shaft. The medulla is composed of loosely arranged cells and can contain air or fluid. It is made up of soft keratin and is pigmented.

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7.

Hair loss is known as _________

Correct Answer
alopecia

Explanation
Hair loss is commonly referred to as alopecia. Alopecia is a medical term used to describe the condition where a person experiences partial or complete hair loss. It can occur on the scalp or other parts of the body, and it can be temporary or permanent. Alopecia can be caused by various factors such as genetics, hormonal changes, autoimmune disorders, or certain medical treatments.

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8.

Another name for laminitis is __________

Correct Answer
founder

Explanation
Laminitis, also known as founder, is a painful condition that affects the hooves of horses and other hoofed animals. It is characterized by inflammation and damage to the laminae, which are the sensitive tissues that connect the hoof wall to the underlying structures. The term "founder" is commonly used to describe this condition, as it refers to the sinking or rotation of the coffin bone within the hoof. This can lead to severe lameness and potentially life-threatening complications if not treated promptly.

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9.

Select the three layers which compose the skin:
- Dermis
- Hypodermis
- Epidermis
- Hippopotamus
- Epicdermis
Correct Answer(s)

A. Dermis
A. Hypodermis
A. Epidermis

Explanation

The skin is composed of three main layers: the dermis, hypodermis, and epidermis. The dermis is the middle layer of the skin, containing blood vessels, nerves, and connective tissues. The hypodermis, also known as the subcutaneous tissue, is the deepest layer of the skin, consisting of fat cells that provide insulation and cushioning. The epidermis is the outermost layer of the skin, serving as a protective barrier against external factors. The options "Hippopotamus" and "Epicdermis" are not valid layers of the skin.

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10.

Keratinization is?
- Cells lose nucleus & organelles then engulf and die
- Cells gain nucleus then flatten and die
- Cells lose nucleus & organelles then flatten & die
Correct Answer

A. Cells lose nucleus & organelles then flatten & die

Explanation

Keratinization is a process in which cells lose their nucleus and organelles, and then flatten and die. This process occurs in the outermost layer of the skin, known as the epidermis. The cells in this layer, called keratinocytes, undergo keratinization to produce a tough, protective protein called keratin. As the keratinocytes move towards the surface of the skin, they lose their nucleus and organelles, becoming filled with keratin. Eventually, these flattened, keratin-filled cells slough off and are replaced by new cells from below. This process helps to strengthen and protect the skin.

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11.

Select the two layers of the dermis
- Stratum corneum
- Reticular
- Elastic layer
- Papillary
Correct Answer(s)

A. Reticular
A. Papillary

Explanation

The dermis is the second layer of the skin and is composed of two main layers: the papillary layer and the reticular layer. The papillary layer is the upper layer of the dermis and is responsible for providing nutrients to the epidermis. The reticular layer is the lower layer of the dermis and is responsible for providing strength and elasticity to the skin. Therefore, the correct answer is reticular and papillary.

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1
12.

There IS a distinct boundary from papillary to reticular layer in the dermis.
- True
- False
Correct Answer

A. False

Explanation

The statement is false because there is no distinct boundary between the papillary and reticular layers in the dermis. The papillary layer is the outermost layer of the dermis, composed of loose connective tissue, while the reticular layer is the deeper layer, consisting of dense irregular connective tissue. However, the transition between these two layers is not clearly demarcated, and they blend together rather than having a distinct boundary.

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13.

Laminitis is ________.
- Inflammation of the corium where it breaks through the walls of the periosteum
- Inflammation of the toncils
- Inflammation of the labia
- The inflammation of the lamina, where tissues can't expand beyond the hoof wall, resulting in compression of lamina
Correct Answer

A. The inflammation of the lamina, where tissues can't expand beyond the hoof wall, resulting in compression of lamina

Explanation

Laminitis is the inflammation of the lamina, which are tissues that connect the hoof wall to the coffin bone. This inflammation prevents the tissues from expanding beyond the hoof wall, leading to compression of the lamina. This condition is often painful for the horse and can cause lameness.

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14.

What happens when a horse has laminitis:
- Lamina does something dumb
- Lamina shrivels and dies
- Lamina dies and P3 pulls away from wall
- Some bad stuff
Correct Answer

A. Lamina dies and P3 pulls away from wall

Explanation

When a horse has laminitis, the lamina, which is a sensitive structure that connects the hoof wall to the coffin bone (P3), deteriorates and dies. As a result, P3 starts to separate or pull away from the hoof wall. This separation causes extreme pain and discomfort for the horse and can lead to further complications and lameness.

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15.

All of the following are true EXCEPT:
- Hair is a trait shared by all animals
- Covers most regions of the body
- Keratanized structure made from hair follicles
- Functions in thermoregulation, camouflage and sensory
- Hair is a mammalian trait
Correct Answer

A. Hair is a trait shared by all animals

Explanation

The given statement "Hair is a trait shared by all animals" is incorrect. Hair is not a trait shared by all animals. While hair is a mammalian trait, not all animals have hair. Other animals, such as reptiles, birds, and fish, have different types of coverings like scales, feathers, or fins. Therefore, the statement contradicts the fact that hair is not a trait shared by all animals.

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16.

The following gland is a?
- Apocrine sweat gland
- Musk gland
- Tail gland
- Anal gland
Correct Answer

A. Apocrine sweat gland

Explanation

The correct answer is Apocrine sweat gland. Apocrine sweat glands are a type of sweat gland found in the skin. They are located in specific areas such as the armpits and groin region. These glands produce a thicker, odorless secretion that is then broken down by bacteria on the skin, resulting in body odor. Apocrine sweat glands are different from eccrine sweat glands, which produce a watery sweat to regulate body temperature.

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17.

The epidermis is made of which type of epithelial tissue
- Simple columnar
- Stratified squamous
- Simple squamous
- Simple cuboidal
Correct Answer

A. Stratified squamous

Explanation

The epidermis is the outermost layer of the skin, and it serves as a protective barrier for the underlying tissues. Stratified squamous epithelial tissue is the correct answer because it is the type of tissue that makes up the epidermis. This type of tissue consists of multiple layers of flattened cells, which provides strength and protection against mechanical stress and abrasion. The stratified nature of this tissue allows for the constant renewal of cells from the deeper layers to the surface, ensuring the maintenance of a healthy and functional epidermis.

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18.

The epidermis is avascular
- True
- False
Correct Answer

A. True

Explanation

The statement "The epidermis is avascular" is true. The epidermis is the outermost layer of the skin and it does not contain any blood vessels. It is primarily composed of layers of cells that provide protection to the underlying tissues. The lack of blood vessels in the epidermis means that it relies on diffusion of nutrients and oxygen from the underlying dermis for its metabolic needs. This avascular nature of the epidermis is important for maintaining its function as a barrier against external factors.

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19.

Select the three most common types of carcinoma:
- Malignant melanoma
- Basement membrane carcinoma
- Basal cell carcinoma
- Squamous cell carcinoma
- Merkel carcinoma
Correct Answer(s)

A. Malignant melanoma
A. Basal cell carcinoma
A. Squamous cell carcinoma

Explanation

Malignant melanoma, basal cell carcinoma, and squamous cell carcinoma are the three most common types of carcinoma. Malignant melanoma is a type of skin cancer that develops from melanocytes, the cells that produce pigment in the skin. Basal cell carcinoma is a type of skin cancer that starts in the basal cells of the skin's outermost layer. Squamous cell carcinoma is another type of skin cancer that arises from the squamous cells, which are flat cells in the outermost layer of the skin. These three types of carcinoma are frequently diagnosed and account for the majority of skin cancer cases.

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20.

Pacinian Corpuscles are?
- Ugly
- Pressure emmitors
- Pressure receptors
- Glands
Correct Answer

A. Pressure receptors

Explanation

Pacinian Corpuscles are specialized sensory receptors that are responsible for detecting and responding to mechanical pressure and vibration stimuli. These receptors are found throughout the body, particularly in areas such as the skin, joints, and internal organs. When pressure is applied to the Pacinian Corpuscles, they generate electrical signals that are transmitted to the brain, allowing us to perceive and interpret the sensation of pressure.

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21.

_____________ is cancer arising from epithelial cells,

Correct Answer
carcinoma

Explanation
Carcinoma is the correct answer because it is a type of cancer that originates from epithelial cells. Epithelial cells are the cells that line the surfaces and cavities of the body, and carcinoma specifically refers to cancer that develops in these cells. Carcinomas can occur in various organs such as the skin, lungs, breast, prostate, and colon. They are the most common type of cancer and can spread to nearby tissues if not detected and treated early.

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22.

The following is symptoms of?
- Squamous carcinoma
- Malignant melanoma
- Basal carcinoma
Correct Answer

A. Malignant melanoma

Explanation

Malignant melanoma is a type of skin cancer that arises from the pigment-producing cells called melanocytes. It typically presents with symptoms such as changes in the size, shape, or color of existing moles, the appearance of new moles, asymmetry of moles, irregular borders, and uneven coloration. It may also be accompanied by symptoms like itching, bleeding, or ulceration. Malignant melanoma is an aggressive form of skin cancer that can metastasize to other parts of the body if not detected and treated early.

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23.

The following is an example of?
- Squamous carcinoma
- Basal Carcinoma
- Malignant melanoma
Correct Answer

A. Squamous carcinoma

Explanation

Squamous carcinoma is the correct answer because it is listed as the first option and is the only type of carcinoma mentioned in the given options. The other two options, Basal Carcinoma and Malignant melanoma, are not relevant to the question and can be disregarded.

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24.

The following image shows symptoms of?
- Squamous carcinoma
- Basal carcinoma
- Malignant melanoma
Correct Answer

A. Basal carcinoma

Explanation

The image provided shows symptoms of basal carcinoma. Basal cell carcinoma is a type of skin cancer that usually appears as a small, shiny bump or a red, scaly patch on the skin. It is the most common type of skin cancer and is typically caused by long-term exposure to the sun's ultraviolet (UV) rays. The image shows characteristics such as a raised, pearly bump with visible blood vessels, which are typical signs of basal cell carcinoma.

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25.

The ___________ gives the stratum spinosum its spiny appearance and holds it together.

Correct Answer
desmosome, desmosomes

Explanation
Desmosomes are cell junctions that provide strong adhesion between cells, particularly in tissues that experience mechanical stress. In the stratum spinosum, desmosomes play a crucial role in giving the layer its spiny appearance and holding it together. These specialized structures consist of proteins that form strong connections between neighboring cells, allowing them to resist separation and maintain the integrity of the tissue. Therefore, desmosomes are responsible for the spiny appearance and cohesion of the stratum spinosum.

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26.

Conical Papillae in the stratum corneum of foot pads provides what purpose?
- Heat retention
- Traction
Correct Answer

A. Traction

Explanation

Conical Papillae in the stratum corneum of foot pads provide traction. These structures, found in the foot pads of animals like cats and dogs, help improve grip and prevent slipping. The conical shape of the papillae increases the surface area in contact with the ground, enhancing friction and allowing for better traction. This is particularly important for animals that need to navigate various terrains or engage in activities that require stability and grip, such as running, jumping, or climbing.

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27.

The hoof covers which digit?
- Proximal phalanx P1
- Distal Phalanx P3
- Fetlock
- Middle Phalanx P2
Correct Answer

A. Distal Phalanx P3

Explanation

The correct answer is Distal Phalanx P3. The distal phalanx is the third and smallest bone in the horse's digit, commonly known as the hoof. It is located at the very bottom of the digit and is covered by the hoof capsule. The proximal phalanx (P1) is the bone located above the distal phalanx, the middle phalanx (P2) is the bone located between the proximal and distal phalanx, and the fetlock is the joint above the proximal phalanx.

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28.

The cutaneous pouches in sheep that secrete lanolin are located in these areas.
- Infraorbitally
- Near the anal cavity
- Interdigitally
- Inguinally
- Near the mouth
- Distal to the hooves
Correct Answer(s)

A. Infraorbitally
A. Interdigitally
A. Inguinally

Explanation

The cutaneous pouches in sheep that secrete lanolin are located infraorbitally, interdigitally, and inguinally. This means that the pouches are found below the eye sockets, between the digits of the hooves, and in the groin area. These specific locations are where the sheep produce and store lanolin, a waxy substance that helps to protect their skin and wool.

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29.

Sheeps sebaceous glands in cutaneous pouches produce sebum.
- True
- False
Correct Answer

A. False

Explanation

The statement is incorrect because sheep do not have sebaceous glands in cutaneous pouches. Sebaceous glands are found in the skin of mammals, including humans, but sheep do not possess these glands in pouches on their skin. Therefore, the correct answer is False.

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30.

Claws are keratinized covering the __________.
- Proximal phalanx P1
- Distal phalanx P3
- Metacarpus
- Dewclaw
Correct Answer

A. Distal phalanx P3

Explanation

The correct answer is "Distal phalanx P3." Claws are keratinized coverings that protect the distal phalanx P3, which is the bone at the tip of the digit. The keratinized covering provides strength and durability to the distal phalanx P3, allowing it to effectively perform its functions such as gripping, scratching, and hunting. The other options listed, proximal phalanx P1, metacarpus, and dewclaw, are not directly related to the keratinized covering of claws.

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31.

The following gland is a?
- Musk gland
- Eccrine sweat gland
- Sebaceous gland
- Tail gland
Correct Answer

A. Sebaceous gland

Explanation

The correct answer is sebaceous gland. Sebaceous glands are small oil-producing glands found in the skin. They secrete an oily substance called sebum, which helps to lubricate and waterproof the skin and hair. Sebaceous glands are most abundant on the face, scalp, and upper back. They can become overactive, leading to oily skin and acne, or they can become blocked, resulting in the formation of a sebaceous cyst.

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32.

The epidermis is separated from the dermis by the ______________.

Correct Answer
basement membrane

Explanation
The epidermis is separated from the dermis by the basement membrane. The basement membrane is a thin, specialized extracellular matrix that acts as a barrier between the two layers of the skin. It provides structural support and helps to anchor the epidermis to the dermis. The basement membrane also plays a crucial role in regulating the movement of cells and molecules between the epidermis and dermis, contributing to the overall function and integrity of the skin.

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33.

The outermost white "scaley" part is? Its function?
- Medulla: central core with loosely connected cells in air/fluid, flexible keratin, pigmented
- Cortex: thickest layer of hard keratin, pigmented
- Cuticle: single layer of karatinized squamous cells
Correct Answer

A. Cuticle: single layer of karatinized squamous cells

Explanation

The outermost white "scaley" part is called the cuticle. Its function is to provide a protective covering for the underlying layers of the structure. It consists of a single layer of keratinized squamous cells, which are hardened and flattened. This layer helps to prevent damage to the underlying cells and tissues, and also helps to reduce water loss and maintain hydration. The cuticle acts as a barrier against external factors such as UV radiation, chemicals, and physical abrasion.

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34.

This dog is showing symptoms of clogged anal glands. The action he is performing is known as ________.

Correct Answer
scooting, scooting on floor, scoot

Explanation
The dog is exhibiting the behavior of scooting, which involves dragging its rear end along the floor. This behavior is commonly seen in dogs with clogged anal glands, as they try to relieve the discomfort or itchiness caused by the blockage. The terms "scooting on floor" and "scoot" are alternative ways to describe this action.

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35.

Hooved mammals are known as ___________.

Correct Answer
ungulates

Explanation
Hooved mammals are commonly referred to as ungulates. This term encompasses a wide range of animals, including horses, cows, deer, and other related species. The name "ungulate" comes from the Latin word "ungula," meaning hoof. These animals have evolved to have specialized feet with hooves, which allow them to move efficiently and adapt to various habitats. The term "ungulates" is widely used in the field of zoology to categorize and study this diverse group of mammals.

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36.

Select all characteristics of: Squamous cell carcinoma:
- Found in medial thin areas
- Aggressive locally - forms ulcerated lesions
- Stays dormant and localized
- Spreads rapidly to lymph nodes
- Found in areas most exposed to UV
Correct Answer(s)

A. Aggressive locally - forms ulcerated lesions
A. Spreads rapidly to lymph nodes
A. Found in areas most exposed to UV

Explanation

Squamous cell carcinoma is a type of skin cancer that is characterized by its aggressive nature, forming ulcerated lesions. It also has the ability to spread rapidly to nearby lymph nodes. Furthermore, it is commonly found in areas of the skin that are most exposed to ultraviolet (UV) radiation, such as the face, neck, and hands.

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37.

Select all that apple to dewclaws:
- Are vestigial
- Are important to the well being of many species
- A remainder of digits
- Always contains bones
- Doesnt always contain bones
Correct Answer(s)

A. Are vestigial
A. A remainder of digits
A. Doesnt always contain bones

Explanation

The correct answer is "Are vestigial, A remainder of digits, Doesn't always contain bones". Dewclaws are vestigial structures, meaning they have lost their original function over time. They are a remainder of digits, representing extra toes or claws that no longer serve a purpose. Dewclaws can vary in composition, and they don't always contain bones.

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38.

The brown octopus-like cell in this image is an example of what type of epidermal cell?
- Melanocyte
- Merkel Cell
- Macrophage
- Keritinocyte
Correct Answer

A. Melanocyte

Explanation

The brown octopus-like cell in the image is an example of a melanocyte. Melanocytes are responsible for producing melanin, the pigment that gives color to the skin, hair, and eyes. They are found in the epidermis and play a crucial role in protecting the skin from the harmful effects of UV radiation. Melanocytes transfer melanin to nearby cells, providing them with protection against sun damage.

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39.

The following red cell, attached to the basal layer and sensory nerve endings, is which type of epidermal cell?
- Melanocyte
- Langerhan
- Merkel
Correct Answer

A. Merkel

Explanation

Merkel cells are a type of epidermal cell that are attached to the basal layer and sensory nerve endings. These cells play a role in touch sensation and are responsible for detecting light touch and pressure. They are found in the skin's epidermis and are particularly abundant in areas such as the fingertips and lips.

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40.

Sebaceous glands are found all over the body except on:
- Inguinal region
- Paw pads
- Planum nasale
- Skin
Correct Answer(s)

A. Paw pads
A. Planum nasale

Explanation

Sebaceous glands are responsible for producing sebum, an oily substance that helps keep the skin moisturized. These glands are found all over the body, except on the paw pads and planum nasale. Paw pads and planum nasale are specialized areas of the skin that do not have sebaceous glands. The absence of sebaceous glands in these areas is likely because they have a different function or structure compared to the rest of the skin.

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41.

Select all characteristics of musk glands:
- Produce and release "musk"
- Present in musk deer, muskrat, musk turtle, muskox, musk beetle, pretty much any animal with musk in its name
- Present in cats
- Needs to be expressed
- Used in perfume
Correct Answer(s)

A. Produce and release "musk"
A. Present in musk deer, muskrat, musk turtle, muskox, musk beetle, pretty much any animal with musk in its name
A. Used in perfume

Explanation

Musk glands produce and release "musk" which is used in perfume. These glands are present in musk deer, muskrat, musk turtle, muskox, musk beetle, and pretty much any animal with musk in its name.

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42.

Select the following that applies to Horns:
- Present in males
- Present in both sexes
- Present in cervine
- Sheds annually
- Present in bovine, caprine, ovine
- Permanent, grows constantly
- Stratum cornuem covers bony process
- Stratum luceum covers bony process
Correct Answer(s)

A. Present in both sexes
A. Present in bovine, caprine, ovine
A. Permanent, grows constantly
A. Stratum cornuem covers bony process

Explanation

Horns are present in both sexes of animals. They are also present in bovine, caprine, and ovine species. Horns are permanent structures that continuously grow throughout an animal's life. The bony process of the horns is covered by a layer called the stratum cornuem.

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43.

Select the three types of cells in the dermis
- Macrophage
- Fibroblasts
- Adipocytes
- Langerhan
- Merkel
Correct Answer(s)

A. Macrophage
A. Fibroblasts
A. Adipocytes

Explanation

Macrophages, fibroblasts, and adipocytes are the three types of cells found in the dermis. Macrophages are immune cells that help in the defense against pathogens and foreign substances. Fibroblasts are responsible for producing collagen, elastin, and other components of the extracellular matrix, providing structural support to the skin. Adipocytes store fat and provide insulation and cushioning to the skin. Langerhan cells and Merkel cells are not types of cells found in the dermis, hence they are not included in the answer.

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44.

The thin hairless region on the nose, with no glands, is known as the _________________

Correct Answer(s)
planum nasale

Explanation
The thin hairless region on the nose, with no glands, is known as the planum nasale. This term refers to the specific anatomical feature on the nose that lacks hair and glands. It is a Latin term that literally translates to "nose plateau" or "nose plain." The planum nasale is found in certain animals, such as dogs, cats, and some species of bears, and serves various functions like thermoregulation and sensory perception.

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45.

Sebaceous glands produce and release _______.

Correct Answer(s)
sebum

Explanation
Sebaceous glands are responsible for producing and releasing sebum. Sebum is an oily substance that helps to lubricate and waterproof the skin and hair. It is secreted by the sebaceous glands and helps to keep the skin moisturized and protected. Sebum also plays a role in preventing the skin from becoming dry and helps to maintain the skin's natural barrier function.

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46.

Pigmentation is controlled by:
- Presence of melanocytes
- Malignant melanoma
- Presence of melanin in keratinocytes
- Presence of melanoma in the keratin
Correct Answer

A. Presence of melanin in keratinocytes

Explanation

The correct answer is "Presence of melanin in keratinocytes." Pigmentation is controlled by the presence of melanin, which is a pigment produced by melanocytes. Melanocytes transfer melanin to neighboring keratinocytes, which are the main type of cells in the outermost layer of the skin. This melanin then determines the color of the skin, hair, and eyes.

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47.

Select the characteristics of foot pads:
- Thin layer in inguinal region
- Tough and thickest layer
- Has all 7 epidermal layer
- Has all 5 epidermal layers
- Dermis contains sweat glands
- Stratum corneum has conical papillea
- Stratum luceum has conical papillae
Correct Answer(s)

A. Tough and thickest layer
A. Has all 5 epidermal layers
A. Dermis contains sweat glands
A. Stratum corneum has conical papillea

Explanation

The characteristics of foot pads include being tough and the thickest layer, having all 5 epidermal layers, containing sweat glands in the dermis, and having conical papillae in the stratum corneum.

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48.

(finally) Select all that determine shedding:
- Hormones
- Colour of coat (melanocytes)
- Enviromental
- Genetics
- Horoscopes
- Diet/Health
Correct Answer(s)

A. Hormones
A. Enviromental
A. Genetics
A. Diet/Health

Explanation

The factors that determine shedding are hormones, environmental conditions, genetics, and diet/health. Hormones play a significant role in regulating the hair growth cycle and can influence shedding. Environmental factors such as temperature, light exposure, and seasonal changes can also affect shedding patterns. Genetics plays a role in determining the natural shedding rate of an individual. Additionally, diet and overall health can impact the condition of the hair and contribute to shedding.

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49.

Select all the glands present in the skin;
- Tear ducts
- Anal Glands
- Mammary glads
- Sweat Glands; appocrine/eccrine
- Aquaducts
- Sebaceous glands
- Tail glands
- Musk Glands
- Goblet cells
Correct Answer(s)

A. Anal Glands
A. Mammary glads
A. Sweat Glands; appocrine/eccrine
A. Sebaceous glands
A. Tail glands
A. Musk Glands