Lab learning

Question 1

Cell layers Names

Answer 1

Stratified (multiple) or simple (1) , pseudostratified (looks mutliple but 1)

Question 2

Cell shape names

Answer 2

Squamous (flatterned), columbar, cuboidal, spindle-shaped

Question 3

Histological stain name

Answer 3

Haematoxylin and eosin

Question 4

Hematoxylin

Answer 4

Basophyllic, stains purple, stains acidic components such as nucleous and mitochondria

Question 5

Eosin

Answer 5

Eosinphyllic, stains pink, stains basic things like cytoplasma and collagen

Question 6

Endothelium

Answer 6

Flatterened squamous like endothelial cells, Line heart and blood vessels.

Question 7

Uroepithelium

Answer 7

Lines distal portion of urinary bladder made with umbrella cells that contact the urine.

Question 8

Stratum corneum

Answer 8

Outermost layer of the epithelium. Lack nucleous and are heavily keratinsied, shed from skin. Protects inner layers of skin, dead skin cells

Question 9

Stratum Granulosum

Answer 9

Bellow stratum corneium, containing basophillic cells that aggrigate keratin filaments

Question 10

Stratum spinosum

Answer 10

Thick layer of polygonal cells below S. Granulosum and above S. basale.

Question 11

Stratum Basale

Answer 11

Basal layer 1 cell deep. Include stem cells and daughter cells.

Question 12

Dermal Papillae

Answer 12

Finger like projections between epidermis and dermis

Question 13

Dermis

Answer 13

Eosinophillic, bundles of collagen (fibrous connective tissue) and spindle shaped fibroblasts.

Question 14

Sebacous glands vs Sweat glands

Answer 14

Sebacious- secrete sebum which coats skin and hair. gland found near hair follicle
Sweat gland- Coiled glands that reach to upper hyperdermis and secrete waste products

Question 15

Functions of skin

Answer 15

Protection, heat regulation, secretion, sensation, absorption (vit D)