Integumentary System Quiz
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Questions and Answers

Which of the following is NOT a function of hair/fur mentioned in the text?

  • Protection (correct)
  • Thermoregulation
  • Camouflage
  • Communication

    • What is the name for the top of the nose in dogs, cats, pigs, sheep and goats

  • Planum nasolabiale
  • Ergots
  • Planum Nasale (correct)
  • A and C

    • Which gland produces a secretion that coats the hair and traps moisture?

  • Tail glands
  • Anal glands
  • Sebaceous glands (correct)
  • Sweat glands

    • Which phase of hair growth is the resting phase when the hair stops growing?

    <p>Telogen phase</p> Signup and view all the answers

    Which type of sweat gland is NOT found in the planum nasale or footpads

    <p>Sebaceous glands</p> Signup and view all the answers

    What assists in communication of identification of individuals; sensitive to sex hormone levels

    <p>Tail glands</p> Signup and view all the answers

    Which type of gland stores secretion produced and is expressed during defecation or when the animal is frightened or excited?

    <p>Anal sacs</p> Signup and view all the answers

    What is NOT a primary function of claws and hooves?

    <p>Courtship</p> Signup and view all the answers

    Horns are

    <p>Epidermal in origin and structurally similar to hair, grow continually and are not shed</p> Signup and view all the answers

    Which of the following is NOT a function of horns or antlers mentioned in the text?

    <p>Thermoregulation</p> Signup and view all the answers

    Which layer of the skin is primarily composed of keratinized clear cells and are inly found in very thick skin areas

    <p>Stratum lucidum</p> Signup and view all the answers

    What are the majority of epidermal cells

    <p>Keratinocytes</p> Signup and view all the answers

    Which layer of the epidermis is responsible for keratinization?

    <p>Stratum spinosum</p> Signup and view all the answers

    What is the primary function of the dermis?

    <p>Provides structural strength</p> Signup and view all the answers

    Which layer of the dermis is just beneath the epidermis and forms dermal papillae?

    <p>Papillary layer</p> Signup and view all the answers

    What are the most commonly found cells in the dermis?

    <p>Fibroblasts, adipocytes, and macrophages</p> Signup and view all the answers

    What are foot/paw pads primarily composed of?

    <p>All 5 epidermal layers</p> Signup and view all the answers

    What is the function of foot/paw pads?

    <p>All of the above</p> Signup and view all the answers

    Primarily adipose tissue for thermo-insulation and mechanical shock absorption

    <p>Hypodermis</p> Signup and view all the answers

    What are ergots and chestnuts?

    <p>Dark brown, horny patches on legs of horses</p> Signup and view all the answers

    Which of the following is NOT a function of the hypodermis?

    <p>Produce keratin</p> Signup and view all the answers

    What is the function of Langerhans cells

    <p>Phagocytize microbes and stimulate other cells of immune systerm</p> Signup and view all the answers

    Which layer of the epidermis is responsible for producing new cells?

    <p>Stratum germinativum</p> Signup and view all the answers

    What is the function of melanocytes?

    <p>To produce melanin</p> Signup and view all the answers

    Which layer of the epidermis is the outermost and thickest layer?

    <p>Stratum corneum</p> Signup and view all the answers

    In what layer of the epidermis are keratohyaline granules synthesized

    <p>Stratum granulosum</p> Signup and view all the answers

    In which layer of the epidermis are langerhans cells located

    <p>Stratum spinosum</p> Signup and view all the answers

    Which layer of the epidermis is attached to the epithelial basement membrane

    <p>Both A and C</p> Signup and view all the answers

    What is the function of merkel cells

    <p>Form disks with nerve endings at epidermal-dermal junction, thought to aid in touch sensation</p> Signup and view all the answers

    Contains meissners corpuscles

    <p>Dermis</p> Signup and view all the answers

    Vestiges of 2nd and 4th digits

    <p>Ergots</p> Signup and view all the answers

    Vestiges of carpal and tarsal pads of the 1st digit

    <p>Chestnuts</p> Signup and view all the answers

    Which type of sweat gland produces sweat that empties onto the skin surface?

    <p>Eccrine glands</p> Signup and view all the answers

    Identify the cutaneous pouches of sheep

    <p>Infraorbital, Interdigital, Inguinal</p> Signup and view all the answers

    Term for the loss of large % of hair volume at one time due to metabolic stress or illness

    <p>Telogen Effluvium</p> Signup and view all the answers

    Which phase of hair growth is the active growth phase when the hair shaft lengthens?

    <p>Anagen phase</p> Signup and view all the answers

    Transitional period between anagen and telogen phases

    <p>Catagen phase</p> Signup and view all the answers

    What type of sweat gland empties into hair follicles

    <p>Apocrine glands</p> Signup and view all the answers

    Have some antibacterial and antifungal properties

    <p>Both A and C</p> Signup and view all the answers

    Has a hard outer layer composed of keratin, with an inner layer of corium

    <p>Hooves and claws</p> Signup and view all the answers

    Identify the correct statement regarding Antlers

    <p>Dermal bone &amp; arise from skull, are shed annually</p> Signup and view all the answers

    What is the specific term used for domestic animals that are bred to be horned free

    <p>Polled</p> Signup and view all the answers

    What is present in both sexes in giraffe's but only in male okapi's

    <p>Ossicones</p> Signup and view all the answers

    What is conical or columnar skin-covered bone structures attached to the skull with vascularized innervated connective tissue

    <p>Ossicones</p> Signup and view all the answers

    Which structure develops as cartilage initially, hardens into bone and fuses to the skull at sexual maturity

    <p>Ossicones</p> Signup and view all the answers

    Which of the following is a characteristic of telogen phase of hair growth?

    <p>Quiescent, resting phase</p> Signup and view all the answers

    Study Notes

    Functions of Hair and Fur

    • Functions of hair/fur: insulation, moisture retention, protection, and camouflage.
    • Non-primary functions include acting as sensory structures and aiding in communication.

    Anatomical Terms

    • Top of the nose in dogs, cats, pigs, sheep, and goats is referred to as the planum nasale.
    • Claws and hooves primarily serve for traction, defense, and manipulation, but not primarily for flight or other non-supportive activities.

    Glands and Secretions

    • Sebaceous glands produce a secretion that coats hair, trapping moisture.
    • Apocrine sweat glands are not present in planum nasale or footpads.
    • Anal glands store secretions expressed during defecation or when an animal is frightened or excited.

    Hair Growth Phases

    • The telogen phase is the resting phase of hair growth when hair stops growing.
    • The anagen phase is the active growth phase when the hair shaft lengthens.
    • The transitional phase between anagen and telogen is known as the catagen phase.

    Skin Anatomy and Function

    • The epidermis primarily consists of keratinocytes.
    • The stratum corneum is the outermost and thickest layer of the epidermis.
    • Keratinization occurs in the stratum granulosum.
    • The dermis provides structure and nourishment to the skin.
    • Dermal papillae are formed in the papillary layer just beneath the epidermis.

    Specialized Cells and Structures

    • Langerhans cells function in immune response within the epidermis.
    • Merkel cells are involved in the sensation of touch and pressure.
    • Melanocytes produce melanin, contributing to skin pigmentation.

    Foot and Paw Pads

    • Foot/paw pads are primarily composed of adipose tissue for thermoregulation and shock absorption.
    • Ergots and chestnuts are vestigial structures located on the limbs of some animals.
    • Function of foot/paw pads includes providing traction and protection against abrasive surfaces.

    Other Notable Structures

    • Antlers are characterized as seasonal bony structures that are shed annually, unlike permanent horns, which are present throughout life.
    • Hypodermis functions in insulation, storage, and attachment of skin to underlying tissues.
    • The cutaneous pouches of sheep include specialized skin structures used for communication and thermal regulation.

    Additional Notes

    • The loss of a large percentage of hair volume due to metabolic stress or illness is termed telogen effluvium.
    • The cornified layer facilitates barrier functions as it retains moisture and protects against environmental damage.
    • Giraffes and okapis possess horn-like structures, with distinct characteristics in gender pertaining to okapis.

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    Integumentary System 2023-1.ppsx

    Description

    Test your knowledge of the integumentary system and its related structures, including the layers of the epidermis, keratinization process, dermal structures, and functions of the hypodermis. Explore unique features like foot pads and nasal planum.

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