Unit 1: Lecture 2 Self-study

Question 1

Functions of skin (PASTE)

Answer 1

Protection
Absorption
Sensation
Temperature 
Excretion

Question 2

Layers of the skin (3)

Answer 2

1. epidermis - vegetative intermitotics with a keratinized layer
2. dermis - (papillary/superficial) papillae that carry vasculature to epidermis, and (reticular/deep) a network of collagen elastic fibers
3. Tela subcutanea - panniculus adiposis (layer of fat) and stratum fibrous (superficial fascia)

Question 3

Hair

Answer 3

contained in hair follicle, and consists of keratinized epithelium

Question 4

Arrector Pili

Answer 4

smooth muscle coursing from the root of the hair follicle to the dermis

under sympathetic control

Question 5

Sebaceous Gland

Answer 5

Absent from palms of hands and soles of feet

Sebum production can clog hair follicle, causing acne

Since entire cell is lost in secretion, it is called a “holocrine gland”

Question 6

Sweat Gland

Answer 6

absent from glans of penis and labia minor

“eccrine gland” because none of cell is secreted

large “apocrine glands” (secrete some of cell) around anus and armpit

Question 7

Nails

Answer 7

keratinized epithelium produced at the base of the nail bed

Question 8

Mammary Gland boundaries

Answer 8

Superior: 2nd or 3rd rib.

Inferior: 6th or 7th costal cartilage.

Lateral: Anterior axillary fold (identify on yourself).

Medial: Lateral border of sternum.

Question 9

Nipple

Answer 9

Surrounded by areola and is found at 4th rib

Question 10

Portions of mammary glands (2)

Answer 10

1. parenchyma (functional part)

2. stroma (supportive, connective tissue part)

Question 11

Radical Mastectomy

Answer 11

surgery that is done after breast biopsy

Question 12

Axillary Lymph Node Groups (5)

Answer 12

1. lateral group (around the axillary artery)
2. central group
3. pectoral group
4. subscapular group
5. apical group