Lab 7 Integument

Question 1

Physical protection and waterproofing superficial layer

Answer 1

Stratum corneum

Question 2

Only present in thick skin

Answer 2

Stratum lucidum

Question 3

Exocytosis of lipids for waterproofing

Answer 3

Stratum granulosum

Question 4

Keratinization begins in this layer

Answer 4

Stratum spinosum

Question 5

Regenerative layer of skin melanocytes producing melanin for UV protection deepest layer

Answer 5

Stratum basale

Question 6

Provide strength and integrity

Answer 6

Dermis

Question 7

What are the two structures responsible for light touch

Answer 7

Meissners corpuscle and Merkel discs

Question 8

The most common gland and is temperature sensitive where they produce sweat to help cool the body using evaporative heat lost

Answer 8

Eccrine (merocrine) glands

Question 9

Secrete water lipids and proteins the lipids are broken down by bacteria which causes an order and is what is responsible for body odor

Answer 9

Apocrine lipids

Question 10

Are often associated with hair follicles and are much larger than sudoriferous glands

Answer 10

Sebaceous glands

Question 11

Gross to a specific length and then stops growing

Answer 11

Determinant hair

Question 12

Continues to grow and does not stop

Answer 12

Indeterminant hair

Question 13

Small white Crescent looking structure that is found in the base of the nail

Answer 13

Lunule