Integuementary System Quiz

Keyes - ANATOMY

Skin

1

Hypodermis

2

Epidermis

3

Dermis

4

Hair Shaft

5

Sweat Gland

6

Stratum Corneum

7

Hair Follicle

8

Oil Gland

9

Fat Cells

10

Pacinian Corpuscle

11

Arrector Pili Muscle

12

Nerve

13

Sweat Gland

Sudoriferous

Oil Gland

Sebaceous

Arrector Pili Muscle

Causes goosebumps

Stratum

Means “Layer”

5

How many strata are in thick skin?

4

How many strata are in thin skin?

Stratum Corneum

Horny layer - contains keratinized, dead, “Horny” cells.

Stratum Lucidium

Clear layer - thin, transparent band. Found only in thick skin.

Stratum Granulosum

Granular layer - thin region where keratinization begins.

Stratum Spinosum

Spiny layer - generates epidermal growth

Stratum Basale

Basal layer - 25% of cells are melanocytes, generating epidermal growth.

Keratin

fiberous protein

Carotene

yellow-orange pigment

Melanin

Brown pigment - protects from the sunlight.

Hemoglobin

Red pigment

Papillary

responsible for fingerprints, more superficial within the dermis.

Reticular

more deep within the dermis

Callus

thickening of the epidermis caused by abrasion. 

blister

the separation of the dermal and epidermal layers, with fluid in between.

hematocyst

blood blister

Striae

stretch marks

hematoma

bruise

wrinkles

dermis elasticity declines with age

hair

fused keratinized cells produced by hair follicles.

nails

scalelike modifications of epidermis, heavily keratinized.

acne

active inflammation of sebaceous glands, causedby bacterial infections - can flare up due to stress or certain foods. 

basal cell carcinoma

least malignant of skin cancers - affects cells of stratum basale layer

squamous cell carcinoma

affects cells of stratum spinosum - cells spread through the lymph.

malignant melanoma

cancer of melanocytes, can be deadly.

albanism

no melanin - inherited

ringworm/athletes foot

caused by fungus - itchy, red peeling of skin.

boil

inflammation of hair follicles and sebaceous glands

psoriasis

reddened epidermal lesions covered with scales

dermatology

branch of medicine that treats skin conditions.