Ch 5

Question 1

Where do you have thick skin?

Answer 1

Hands, feet. Hairless areas, no sebaceous oil, yes sweat glands

Question 2

Where is thin skin?

Answer 2

Covers most of body. Hairy, sebaceous oil, sweat glands.

Question 3

6 Functions of skin

Answer 3

Resistance to trauma and infection, water retention, synthesis of vitamin d, sensation, thermoregulation, nonverbal communication.

Question 4

Which layer of skin is connective tissue?

Answer 4

Dermis

Question 5

Which layer of skin is associated but not directly part of skin

Answer 5

Hypodermis

Question 6

Which layer of skin is epithelium?

Answer 6

Epidermis

Question 7

What is epidermis maid of?

Answer 7

Keratinized stratified squamous epithelium

Question 8

What is the first layer of cells in the epidermis called?

Answer 8

Stratum Basale. It is right above the basement membrane. Melanocytes!

Question 9

Second layer of epidermis?

Answer 9

Stratum Spinosum. Dendritic cells! a little thicker.

Question 10

third layer of epidermis

Answer 10

Stratum Granulosum. Has granules

Question 11

Fourth Layer of epidermis

Answer 11

Stratum Lucidum. Only in loose skin (toes heals etc).

Question 12

Fifth layer of epidermous?

Answer 12

Corneum. Dying cells. Very squished from all the keratin.

Question 13

First layer of dermis?

Answer 13

Papillary (nippppple). Region w blood vessle.

Question 14

Layer of dermis underneath the papillary layer?

Answer 14

Reticular. not good blood supply like the papillary. 4/5ths of the dermis. Dense irregular connective tissue.

Question 15

What is Eumelanin?

Answer 15

Brown black pigment

Question 16

What is pheomelanin?

Answer 16

White red pigement in skin

Question 17

Does the number of melanocytes differ across individuals?

Answer 17

No. Skin tone vary due to type and distribution of melanin.

Question 18

What is Cyanosis?

Answer 18

blue. Not enough oxygen

Question 19

Erythema?

Answer 19

Increased blood flow

Question 20

Pallor

Answer 20

Not pink eye lids. Decreased blood flow

Question 21

Albinism

Answer 21

Adosomal recessive genetic mutation. Melanocytes don’t produce pigmentation.

Question 22

Jaundice

Answer 22

Not fully functioning livers so bilirubin isn’t disposed of. yellow. loss of red blood cells?

Question 23

Hematoma

Answer 23

Collection of blood underneath the skin. Trauma

Question 24

What does Medulla mean?

Answer 24

Center of an organ

Question 25

What does cortex mean?

Answer 25

circle around the medulla

Question 26

What are cutaneous glands?

Question 27

Apocrine glands

Answer 27

Puberty glands…pheromones, sweat glands, pubic hair

Question 28

Eccrine (Merocrine)

Answer 28

All the other sweat glands(nonpuberty).Sweat glands the function in evaporative cooling

Question 29

Sebaceous Glands

Answer 29

OILLLL. Produce sebum. open to a pore or hair follicle

Question 30

Ceruminous glands

Answer 30

glands in external ear so ur ear doesn’t dry out or get too dirty

Question 31

Mammary gland

Answer 31

lactation pregnancy etc