chapter 6 skin and membranes part 2

Question 1

Dermal-epidermal junction

Answer 1

Gluelike layer between the dermis and epidermis

Question 2

Soft hair of fetus and newborn is called

Answer 2

lanugo

Question 3

Hair root lies hidden in follicle and visible part of hair is called

Answer 3

shaft

Question 4

Hair growth requires epidermal tubelike structure called

Answer 4

hair follicle

Question 5

Arrector pili is specialized smooth muscle that produces

Answer 5

“goose bumps” and causes hair to stand up straight.

Question 6

Skin receptors

Answer 6

relay messages to the brain concerning sensations like touch, pain, and pressure.

Question 7

Two skin receptors are

Answer 7

Lamellar corpuscle (Pacini corpuscle)Tactile corpuscle (Meissner corpuscle)

Question 8

Tactile corpuscle (Meissner corpuscle):

Answer 8

Capable of detecting light touch

Question 9

Lamellar corpuscle (Pacini corpuscle):

Answer 9

Capable of detecting pressure, which detects pressure deep in the dermis.

Question 10

Skin glands include

Answer 10

The skin glands include the two varieties of sweat glands(sudoriferous) and the tiny sebaceous gland

Question 11

Types of sweat or sudoriferous glands

Answer 11

Eccrine and Apocrine

Question 12

Eccrine sweat glands

Answer 12

Produce perspiration or sweat, which flows out through pores on skin surface. Sweat assists in the elimination of waste products

Question 13

Pinpoint-size openings on the skin are called

Answer 13

pores

Question 14

Apocrine sweat glands are found in

Answer 14

Found primarily in the skin in the axilla (armpit) and in the pigmented skin areas around the genitals.

Question 15

Sebaceous glands

Answer 15

Sebaceous glands secrete oil for the hair and skin.Grow where hairs grow

Question 16

skin Protection; first line of defense against

Answer 16

Infection by microbes•Ultraviolet rays from sun•Harmful chemicals•Cuts and tears

Question 17

Temperature regulation

Answer 17

Mechanisms of temperature regulation •Regulation of sweat secretion•Regulation of flow of blood close to the body surface

Question 18

Functions of the skin

Answer 18

Sense organ activity,Excretion,Synthesis of vitamin D

Question 19

Sense organ activity

Answer 19

-The skin’s millions of nerve endings serve as antennas or receivers for the body.

Question 20

Excretion

Answer 20

body gets rid of waste

Question 21

Synthesis of vitamin D

Answer 21

Occurs when skin is exposed to ultraviolet light

Question 22

The upper region, or papillary layer, of the dermis is characterized by parallel rows of tiny bumps called

Answer 22

dermal papillae.

Question 23

Subcutaneous tissue is also called

Answer 23

the superficial fascia or hypodermis

Question 24

Nails are classified as

Answer 24

sensory organs

Question 25

Crescent-shaped area nearest root is called

Answer 25

lunula

Question 26

Under the nail lies a layer of epithelium called the

Answer 26

nail bed

Question 27

Squamous cell carcinoma

Answer 27

Common type of skin cancerSlow growingLesions begin as painless, hard, raised nodules

Question 28

Basal cell carcinoma

Answer 28

Most common type of skin cancerOriginates in cells at base of epidermis, often on upper face

Question 29

Malignant melanoma

Answer 29

Most serious form of skin cancerMay develop from benign, pigmented moles or excess UV radiation

Question 30

Kaposi sarcoma (KS)

Answer 30

Caused by Kaposi sarcoma–associated herpes virus (KSHV), also known as human herpes virus 8 (HHV8).

Question 31

abcde stands for

Answer 31

asymmetry, border, color, diameter, involving