Chapter 1: Principles of Diagnosis and Anatomy

Question 1

What are the three types of branched cells in the epidermis

Answer 1

1. Melanocyte
2. Langerhans
3. Merkel cell

Question 2

What are the two layers of the dermis

Answer 2

1. Papillary layer: Thin upper layer

2. Reticular layer: thicker lower layer

Question 3

What are the three layers of skin

Answer 3

1. Epidermis
2. Dermis
3. Subcutaneous tissue

Question 4

What forms the spinous cell layer

Answer 4

Basal cells divide to form keratinocytes

Question 5

What are histocytes

Answer 5

wandering macrophages that accumulate hemosiderin, melanin, and debris created by inflammation.

Question 6

What are mast cells

Answer 6

located primarily around blood vessels, manufacture and release histamine and heparin.

Question 7

How are sensations of touch and pressure received

Answer 7

Meisner and Vater-pacini corpuscles

Question 8

How is pain, itch, and temperature received

Answer 8

unmyelinated nerve endings in the papillary dermis

Question 9

What controls the motor innervation of the skin

Answer 9

Autonomic system

Question 10

What do adrenergic fibers innervate

Answer 10

blood vessels (vasoconstriction)
Hair erector muscles
Apocrine glands

Question 11

What innervates eccrine sweat glands

Answer 11

Cholinergic fibers

Question 12

What is the methodical approach to the patient with skin disease

Answer 12

1. history
2. Distribution
3. Primary Lesion
4. Differential Diagnosis
5. Tests