CHAPTER 5: Integumentary System

Question 1

2 layers of integument (skin) and dominate tissue type

Answer 1

1. epidermis - keratinized stratified squamous epithelium
2. dermis - areolar and dense irregular connective tissue
   *hypodermis/subcutaneous layer - areolar and adipose connective tissue

Question 2

Which skin layer is thicker?

Answer 2

dermis

Question 3

other names for integument

Answer 3

skin or cutaneous membrane

Question 4

What makes up the integumentary system?

Answer 4

skin, nails, hair, sweat glands, sebaceous glands

Question 5

Layers (strata) of epidermis from deep to superficial

Answer 5

stratum basale
stratum spinosum
stratum granulosum
stratum lucidum (thick skin; in palms, fingertips, soles of feet only)
stratum corneum

Question 6

sebaceous glands are often associated with…

Answer 6

hair follicles

Question 7

function of epidermis

Answer 7

protection, prevent water loss/gain, sensory reception, skin color

Question 8

2 layers of the dermis

Answer 8

1. papillary (superficial) - made of areolar connective tissue
2. reticular (deeper) - made of dense irregular connective tissue

Question 9

discuss lines of cleavage

Answer 9

parallel, elastic fibers at specific body locations to allow routine stresses; overstretching can create striae (stretch marks)

Question 10

2 types of exocrine glands on the skin

Answer 10

sweat and sebaceous

Question 11

2 types of sweat glands: function, secretion, location

Answer 11

1. merocrine - temp regulation; 99% water; all over body
2. apocrine - temp regulation; thick, cloudy fluid; puberty regions

Question 12

function of sebaceous glands

Answer 12

lubricate hair and skin by producing sebum

Question 13

function of arrector pili muscles

Answer 13

react to emotion and cold temperatures; produces goosebumps

Question 14

function of hair

Answer 14

protection, heat retention, sensory reception, visual identification

Question 15

function of touch receptors

Answer 15

sense location of touch, pain, and temperature