Integumentary System

Question 1

3 layers?

Answer 1

epidermis, dermis, and hypodermis

Question 2

It is involved in _____, vitamin __ production, and protection from _______.

Answer 2

homeostasis, D, pathogens

Question 3

Epithelial cells

Answer 3

Simple or stratified
Squamous, cuboidal or columnar

Question 4

The _______ is the most superficial layer and contains _____
It protects against dehydration, UV radiation, and pathogens

Answer 4

epidermis, keratinocytes

Question 5

Corneum has what cells

Answer 5

Corneocytes

Question 6

The stratum layers (most superficial to deep) are: (use acronym)

Answer 6

Come Let’s Get Some Beers
Corneum (corneocytes)
Lucidum (dead keratinocytes)
Granulosum (lamellar bodies)
Spinosum (strength)
Basale (UV radiation)

Question 7

Lucidum is present where

Answer 7

Dead keratinocytes

Question 8

Granulosum has

Answer 8

lamellar bodies

Question 9

Spinosum is important for what

Answer 9

Important for strength (desmosomes) and immunity (Langerhans cells)

Question 10

Basale

Answer 10

Hemidesmosomes
UV radiation.
Light touch sensation (Merkel cells) & melanin synthesis (melanocytes) occurs here.

Question 11

2 layers of the dermis

Answer 11

papillary and the reticular dermis

Question 12

papillary dermis

Answer 12

more superficial and thin, high surface area

Question 13

the reticular dermis

Answer 13

deeper and thick, made of dense irregular connective tissue

Question 14

What is hair made up of?

Answer 14

Made of keratin, generated from hair follicles, stands up via erector pili muscles, and offers sun and hypothermia protection.
Only mammals have true hair.

Question 15

Sudoriferous glands consist of:

Answer 15

Eccrine glands and Apocrine glands

Question 16

Apocrine glands

Answer 16

are located at specific sites and secrete into a hair follicle. They produce earwax (ceruminous) or milk (mammary), depending on their location.

Question 17

Eccrine glands

Answer 17

(sweat glands) are
located on the entire body surface and are important in thermoregulation.

Question 18

The hypodermis (subcutaneous layer) is the _____ layer

Answer 18

deepest

Question 19

What is the hypodermis made up of? Main function?

Answer 19

Larger nerves and blood vessels
Made of loose connective tissue and adipose (fat) tissue
Main function is fat storage