Integumentary System

Question 1

Functions of skin

Answer 1

Protect underlying body structures
Insulation
Maintenance of homeostasis 
Assists in metabolism 
Attachment of muscle 
Cutaneous sensation

Question 2

Layers of the skin

Answer 2

Epidermis - outer most superficial layer
Dermis - inner layer composed of primarily collagen and elastic fibrous CT
Subcutaneous tissues - underneath dermis

Question 3

Layers of skin - Layers of Epidermis

Answer 3

Stratum corneum - outermost
Stratum lucidum
Stratum granulosum 
Stratum spinosum
Stratum basale - deepest

Question 4

Appendages of skin

Answer 4

Hair
Nails
Sebaceous glands
Sweat glands

Question 5

Appendages of skin - hair

Answer 5

terminal hair - coarse, thick, pigmented (scalp, eyebrow)

vellus hair - short, fine (arms and chest)

Question 6

Appendages of skin - nails

Answer 6

nail plate, lunula, proximal nail fold/cuticle, lateral nail fold

Question 7

Appendages of skin - sebaceous glands

Answer 7

exocrine glands that secrete fatty substance (sebum) through hair follicles
on all skin surfaces except palms and soles

Question 8

Appendages of skin - sweat glands

Answer 8

Eccrine glands - widely distributed, open on skin, help control body temp
Apocrine glands - found in axillary and genital areas, open into hair follicles, stimulated by emotional stress