Integument 5b

Question 1

Eccrine sweat glands

Answer 1

found in palms, soles of the feet, and forehead

Question 2

Different types prevent overheating of the body; secrete cerumen and milk

Answer 2

Eccrine sweat glands, Apocrine sweat glands, Ceruminous glands, Mammary glands

Question 3

Apocrine sweat glands

Answer 3

Found in axillary and anogenital areas

Question 4

Ceruminous glands

Answer 4

modified apocrine glands in external ear canal that secrete cerumen

Question 5

Mammary glands

Answer 5

specialized sweat glands that

secrete milk

Question 6

Sebaceous Glands

Answer 6

Simple alveolar glands found all over the body
Soften skin when stimulated by hormones
Secrete an oily secretion called sebum

Question 7

Functions of hair include

Answer 7

Helping to maintain warmth
Alerting the body to presence of insects on the skin
Guarding the scalp against physical trauma, heat loss, and sunlight

Question 8

Hair is distributed over the entire skin surface except

Answer 8

Palms, soles, and lips

Nipples and portions of the external genitalia

Question 9

Types of hair

Answer 9

Vellus, Terminal

Question 10

Vellus

Answer 10

pale, fine body hair found in children and the adult female

Question 11

Terminal

Answer 11

coarse, long hair of eyebrows, scalp, axillary, and pubic regions

Question 12

Alopecia

Answer 12

hair thinning in both sexes

Question 13

Male pattern baldness

Answer 13

caused by follicular response to DHT

Question 14

Functions of the Integumentary System

Answer 14

Protection, Body temperature regulation, Cutaneous sensation, Metabolic functions, Blood reservoir, Excretion

Question 15

Body temperature regulation is accomplished by

Answer 15

Dilation (cooling) and constriction (warming) of
dermal vessels
Increasing sweat gland secretions to cool the body

Question 16

The three major types of skin cancer are

Answer 16

Basal cell carcinoma, Squamous cell carcinoma, Melanoma

Question 17

Basal Cell Carcinoma

Answer 17

Least malignant and most common skin cancer, Stratum basale cells proliferate and invade the
dermis and hypodermis, Slow growing and do not often metastasize, Can be cured by surgical excision in 99% of the cases

Question 18

Squamous Cell Carcinoma

Answer 18

Arises from keratinocytes of stratum spinosum, Arise most often on scalp, ears, and lower lip, Grows rapidly and metastasizes if not removed, Prognosis is good if treated by radiation therapy or removed surgically

Question 19

Melanoma

Answer 19

most dangerous type of skin cancer, Highly metastatic, Resistant to chemotherapy

Question 20

Melanoma following characteristics ABCD rule

Answer 20

A: Asymmetry; the two sides of the pigmented area do not match
B: Border is irregular and exhibits indentations
C: Color (pigmented area) is black, brown, tan, and
sometimes red or blue
D: Diameter is larger than 6 mm (size of a pencil eraser)

Question 21

First-degree burn

Answer 21

only the epidermis is damaged, Symptoms include localized redness, swelling, and
pain

Question 22

Second-degree burn

Answer 22

epidermis and upper regions of dermis are damaged,

Symptoms mimic first degree burns, but blisters also appear

Question 23

Third-degree burn

Answer 23

entire thickness of the skin is damaged, Burned area appears gray-white, cherry red, or black;
there is no initial edema or pain (since nerve endings
are destroyed)

Question 24

Epidermis develops from

Answer 24

ectoderm

Question 25

Dermis and hypodermis develop from

Answer 25

mesoderm

Question 26

Lanugo

Answer 26

downy coat of delicate hairs covering the fetus

Question 27

Vernix caseosa

Answer 27

substance produced by sebaceous glands that protects the skin of the fetus in the amnion