Lecture 9: Skin And Body Membranes

Question 0

Goblet cells

Answer 0

Glandular simple columnar epithelial cells, secrete mucous

Question 1

Mucous membranes

Answer 1

Lines all cavities open to the exterior

Question 2

Serous membranes

Answer 2

Simple squamous epithelium, line cavities closed to the exterior

Question 3

Parietal layer

Answer 3

Lines walls of cavity

Question 4

Visceral layer

Answer 4

Covers and adheres to viscera within cavities

Question 5

Serous fluid

Answer 5

Fluid between layers that reduces friction

Question 6

Cutaneous membrane

Answer 6

Covers body surfaces

Question 7

Synovial fluid

Answer 7

Viscous fluid found in synovial joints, reduce friction during movements

Question 8

Keratinocytes

Answer 8

Produce keratin (fibrous protein that makes skin protective)

Question 9

Melanocytes

Answer 9

Cells that produce pigment (melanin)

Question 10

Stratum basalt

Answer 10

Deepest cell layer of epidermis, closest to dermis

Question 11

Stratum spinosum

Answer 11

Between granulosum and basale. Keratinization occurs here.

Question 12

Stratum granulosum

Answer 12

Keratinocytes become granular cells here

Question 13

Apoptosis

Answer 13

Cell death

Question 14

Lamellar granules

Answer 14

Secretory organelles

Question 15

Stratum lucidum

Answer 15

Palms and soles of feet

Question 16

Stratum corneum

Answer 16

Outermost layer of epidermis

Question 17

Epidermal growth factor (EGF)

Answer 17

Growth factor that stimulates cell growth, proliferation and differentiation

Question 18

Papillary region

Answer 18

Upper dermal region

Question 19

Dermal papillae

Answer 19

Peg like projections, indent dermis above

Question 20

Meissner corpuscle

Answer 20

Sense light touch

Question 21

Free nerve endings

Answer 21

Un specialized, affarent nerve endings. Detect pain.

Question 22

Epidermal ridges

Answer 22

Grip on hands, feet. Formed by underlying dermal papillae.