Ch. 4 - Integumentary System

Question 1

Epidermis

Answer 1

The outermost layers of cells in the skin. It is a stratified squamous epithelium

Question 2

Stratum corneum

Answer 2

1st layer of epidermis.

Multiple layers of flattened dead cells.

Question 3

Stratum lucidum

Answer 3

2nd layer of epidermis.

Translucent layer that is only on thick skin

Question 4

Stratum granulosum

Answer 4

3rd layer of epidermis.

Couple layers of darkly stained cells kertinocytes.

Question 5

Stratum spinosum

Answer 5

4th layer of epidermis.

Several layers of thin pincushion-shaped cells

Question 6

Stratum germinativum/Stratum basale

Answer 6

5th layer of epidermis.

Couple layers of stem cell superior to hard-stained basal lamina as well as melanocytes and Merkel cell/tactile discs.

Question 7

Dermis

Answer 7

Between the epidermis and subcutaneous tissues, that consists of connective tissue.

Question 8

Papillary layer

Answer 8

1st layer of dermis (superficial)

Contains loos connective tissue w/ projections superior called papillae.

Question 9

Reticular layer

Answer 9

2nd layer of dermis (deep).

Dense irregular connective tissue that contains blood vessels, hair follicles, nerves, sweat glands, and sebaceous glands.