(7) integumentary system

Question 1

integumentary system - basic functions

Answer 1

protection
thermoregulation
homeostasis
sensory reception
slow water loss

Question 2

integumentary system - parts

Answer 2

hair
skin
nails
associated glands

Question 3

integumentum

Answer 3

a covering

Question 4

layers of the skin

Answer 4

epidermis
papillary layer
dermis
hypodermis/subcutaneous layer

Question 5

epidermis

Answer 5

outermost layer
stratified squamous epithelial tissue
no blood vessels, nerves, receptors, etc

Question 6

papillary layers

Answer 6

boundary between the epidermis & dermis
contributes to fingerprints & toeprints
contains melanocytes

Question 7

skin color is influenced by

Answer 7

genes
melanin levels
oxygenation levels
chemicals (ex. beta carotene)
diseases/disorders

Question 8

dermis

Answer 8

contains blood vessels, nerves, hair follicles, smooth muscle, connective tissue, and exocrine glands

Question 9

exocrine gland

Answer 9

a structure that secretes substances into ducts that empty onto a free surface, or onto the body covering

Question 10

types of exocrine glands

Answer 10

sweat
sebaceous
ceruminous
mammary
salivary
lacrimal

Question 11

sweat gland

Answer 11

help regulate body temperature

Question 12

sebaceous gland

Answer 12

oil
surround hair shafts/follicles
protection (drying, irritation, keeps hair & skin pliable, inhibits fungal/bacterial growth)

Question 13

ceruminous gland

Answer 13

wax

Question 14

mammary gland

Answer 14

milk

Question 15

salivary gland

Answer 15

saliva

Question 16

lacrimal gland

Answer 16

tears

Question 17

hair

Answer 17

protection

insulation

Question 18

hair color depends on

Answer 18

genes and melanin

Question 19

hair bulb makes

Answer 19

keratin

Question 20

arector pili

Answer 20

mulse that makes the hair stand on end

Question 21

nail parts

Answer 21

free edge
nail plate/nail bed
lunula
cuticle
matrix

Question 22

free edge

Answer 22

the portion of the nail that extends beyond the nail bed

Question 23

nail plate/nail bed

Answer 23

the area of the finger that the nail grows on top of

Question 24

lunula

Answer 24

visible portion of the matrix bed where the nail is formed & grows

Question 25

cuticle

Answer 25

fold of skin tissue at the base of the nail which overlaps the lunula and protects the nail bed

Question 26

matrix

Answer 26

where the nail is formed & grows

Question 27

nerves

Answer 27

interpret the environment
protection
thermal regulation

Question 28

subcutaneous layer/hypodermis - contains

Answer 28

loose connective tissue
adipose tissue
sensory nerves
blood vessels

Question 29

subcutaneous layer/hypodermis - functions

Answer 29

insulation
padding
thermoregulation
bind skin to muscle (connection)

Question 30

most common forms of skin cancer

Answer 30

carcinoma

melanoma - the worst

Question 31

types of burns

Answer 31

first degree
second degree
third degree

Question 32

first degree burn

Answer 32

epidermis only - sunburn

Question 33

second degree burn

Answer 33

epidermis and part dermis
fluid-filled blisters separate the 2 burned layers
heals without grafting, may scar

Question 34

third degree burn

Answer 34

epidermis, dermis, part hypodermis, and structures

damaged area is numb due to loss of sensory neurons

Question 35

consequences of severe burns

Answer 35

increased chances of infection
nerve damage
water loss
scarring
reduced ability to regulate body temp