Integumentary System

Question 1

What are the layers of the skin?

Answer 1

epidermis
dermis
subcutaneous

Question 2

Skin manufactures what vitamin?

Answer 2

D

Question 3

the epidermis is made up of what cells?

Answer 3

epithelial

Question 4

Which layer of the skin contains no blood vessels?

Answer 4

epidermis

Question 5

What is the deepest layer of the epidermis? Where cells constantly undergo division?

Answer 5

stratum basale

Question 6

Most epidermal cells are ____________

Answer 6

keratinized

Question 7

The dermis contains mostly ___________ tissue

Answer 7

connective

Question 8

Which layer of the skin contains blood vessels, sensory receptors, hair follicles, sebaceous glands and sweat glands?

Answer 8

dermis

Question 9

The dermis contains what 2 types of fibers?

Answer 9

elastin & collagen

Question 10

Which layer of the skin consists of connective tissue to attach skin to underlying muscles?

Answer 10

subcutaneous

Question 11

4 types of cells found in the epidermis

Answer 11

Langerhans
Keratinocytes
Melanocytes
Merkle cells

Question 12

These cells arise from stratum basale, produce keratin, and are the most common cell found in the epidermis?

Answer 12

keratinocytes

Question 13

What cells produce melanin and protect against UV?

Answer 13

melanocytes

Question 14

Merkle cells detect light touch and are found where?

Answer 14

stratum basale - epidermis

Question 15

4 types of cells found in dermis

Answer 15

fibroblasts
adipocytes
macrophages
mast cells

Question 16

Fat cells are called?

Answer 16

adipocytes

dermis layer

Question 17

These cells secrete collagen, elastin, glycosaminoglycans, and other components of the extracellular matrix?

Answer 17

fibroblasts

Question 18

Macrophages are _________ cells that engulf pathogens and are found in the dermis

Answer 18

phagocytic

Question 19

What cells play a role in inflammation and release histamine?

Answer 19

mast cells

Question 20

Regarding the negative feedback loop that regulates homeostasis, what are the receptors, control center, and effectors?

Answer 20

receptors: sensory cells in dermis
control center: hypothalamus
effectors: sweat glands, blood vessels, muscles

Question 21

__________ of blood vessels release heat into environment to lower body temp

Answer 21

vasodilation

Question 22

Sebaceous glands and sweat glands are both ________ glands, which secretes substances into ducts

Answer 22

exocrine

Question 23

Sebaceous glands are _________ glands that secrete sebum through hair pores.

Answer 23

holocrine

Question 24

What is an oily mixture of lipids and proteins that inhibit water loss, while also protecting against bacterial and fungal infections?

Answer 24

sebum

Question 25

Sweat glands can be what 2 types of glands?

Answer 25

eccrine

apocrine

Question 26

Eccrine glands are ____ connected to hair follicles

Answer 26

not

Question 27

Eccrine glands are activated by?

Answer 27

increased body temp

Question 28

These glands are found of forehead, neck and back? They secrete a salty solution of electrolytes and are activated by body’s thermoregulation

Answer 28

eccrine glands

Question 29

What glands secrete an oily substance containing fatty acids, triglycerides and proteins?

Answer 29

apocrine

Question 30

What glands are found on hands, feet, armpits and groin?

Answer 30

apocrine