A&P Chapter 9

Question 1

A flattened structure at the end of each finger and toe made of keratin from the epidermis

Answer 1

Nail

Question 2

Burns that involve the epidermis and a portion of the dermis; also called second-degree burns

Answer 2

Partial-Thickness Burns

Question 3

Referring to under the skin

Answer 3

Hypodermic

Question 4

A protein in the skin that is responsible for the strength and permeability of the epidermis

Answer 4

Keratin

Question 5

Thread-like, keratin-containing appendage of the outer layer of the skin

Answer 5

Hair

Question 6

Burns that involve the hypodermis and possibly bone, muscle, or internal organs; also called full-thickness burns

Answer 6

Third-Degree Burns

Question 7

Glands that produce sebum and are located in the dermis of the entire body, except for the palms and soles

Answer 7

Sebaceous Glands

Question 8

An injury in which the involved body part has lost its outer layer of skin or mucous membrane because it has been rubbed or scratched off

Answer 8

Abrasion

Question 9

Sweat glands that produce a solution containing salt and urea that is secreted directly onto the surface of the skin through sweat pores

Answer 9

Merocrine (Eccrine) Glands

Question 10

The outer layer of the epidermis, which contains about 25 layers of dead cells that continuously shed as new cells push upward

Answer 10

Stratum Corneum

Question 11

Burns that involve the epidermis and a portion of the dermis; also called partial-thickness burns

Answer 11

Second-Degree Burns

Question 12

Granules within the stratum lucidum that are formed from keratohyalin and are eventually transformed to keratin

Answer 12

Eleidin

Question 13

The portion of the nail over which the nail body lies

Answer 13

Nail Bed

Question 14

Pores in the skin through which sweat is secreted

Answer 14

Sweat Pores

Question 15

The result of heat or other thermal injury to the skin

Answer 15

Burns

Question 16

The layer of epidermis between the stratum granulosum and the stratum germinativum that contains cells known as keratinocytes, which synthesize the keratohyalin, a precursor of keratin

Answer 16

Stratum Spinosum

Question 17

A whitish, crescent-shaped structure at the base of the nail body

Answer 17

Lunula

Question 18

Tubelike structures in which hairs develop; they extend from the skin surface into the dermis

Answer 18

Hair Follicles

Question 19

Wound made by a sharp instrument that passes through the skin, affecting all tissues in its path

Answer 19

Penetrating Wound

Question 20

The inner layer of the skin, containing hair follicles, sweat glands, nerve endings, and blood vessels; located immediately above the hypodermis

Answer 20

Dermis

Question 21

A condition of the skin resulting from the inability to synthesize melanin

Answer 21

Albinism

Question 22

Material produced by sebaceous glands that contains a combination of fatty material and cellular debris

Answer 22

Sebum

Question 23

The innermost layer of epidermis

Answer 23

Stratum Germinativum

Question 24

Breaks in the integrity of the integumentary system

Answer 24

Wounds

Question 25

The layer of soft tissue immediately below the dermis; also called the hypodermis

Answer 25

Subcutaneous Layer

Question 26

The layer of epidermis between the stratum lucidum and the stratum spinosum that is composed of flattened cells that contain granules of keratohyalin

Answer 26

Stratum Granulosum

Question 27

Burns involving only the epidermis; also called first-degree burns

Answer 27

Superficial Burns

Question 28

The portions of hair that extend above the skin

Answer 28

Hair Shafts

Question 29

Burns involving only the epidermis; also called superficial burns

Answer 29

First-Degree Burns

Question 30

The superficial, outer layer of the skin that contains numerous nerve vessels, but no nerve endings; acts as the body's first line of defense

Answer 30

Epidermis

Question 31

The cells in the epidermis that produce a protein called keratin

Answer 31

Keratinocytes

Question 32

The body's external surface, including the skin, nails, hair, and sweat and oil glands

Answer 32

Integumentary System

Question 33

A precursor of keratin that is located in the stratum granulosum of the epidermis

Answer 33

Keratohyalin

Question 34

A smooth cut, usually made by a sharp object such as a scalpel

Answer 34

Incision

Question 35

A wound with a smooth or jagged edge, resulting from a tearing, scraping, or sharp cutting action

Answer 35

Laceration

Question 36

Epidermal cells that contribute to skin color by producing a dark pigment called melanin

Answer 36

Melanocytes

Question 37

Coiled tubular glands that usually open into hair follicles of the axillae and genitalia, as well as around the anus

Answer 37

Apocrine Glands

Question 38

The layer of tissue immediately beneath the dermis; also called the subcutaneous layer

Answer 38

Hypodermis

Question 39

The first inner layer of the epidermis, it is readily visible in the thick epithelium of the palms of the hands and the soles of the feet

Answer 39

Stratum Lucidum

Question 40

Glands that secrete sebum; also called sebaceous glands

Answer 40

Holocrine Glands

Question 41

A wound in which flaps of the skin and tissue are torn loose or pulled off completely

Answer 41

Avulsion

Question 42

The dark pigment in skin that protects the skin from the sun's ultraviolet rays

Answer 42

Melanin

Question 43

A thin, noncellular layer of ground substance lying under epithelial surfaces that separates the epidermis from the areolar tissue of the adjacent dermis

Answer 43

Basal Lamina

Question 44

Cell structures specialized for cell-to-cell adhesion

Answer 44

Desmosomes

Question 45

Completely cutting or tearing off of a body part

Answer 45

Amputation

Question 46

Muscle attached at the base of the hair that pulls the hair perpendicular to the surface of the skin in cold or threatening situations

Answer 46

Arrector Pili Muscle

Question 47

Burns that involve the hypodermis and possibly bone, muscle, or internal organs; also called third-degree burns

Answer 47

Full-Thickness Burns