Anatomy & Physiology – Integumentary System
Worksheet - Basic skin structure
Name: ______
I. Label the diagram by placing the correct letter in the box
a. hypodermis
b. stratum basale
c. dermis
d. stratum corneum
e. stratum spinosum
f. stratum lucidum
g. stratum granulosum
h. epidermis
i. reticular
j. papillary
Short Answer
1. The more superficial layers of the epidermis become less viable & ultimately die. What two factors account for this natural demise of the epidermal cells?
a. ______
b. ______
II. Matching - answers may be used more than once - choose most specific answers
_____1. TWO actively mitotic layers
_____2. TWO layers that contains totally keratinized cells
_____3. cells that contribute color and filter UV light
_____4. cells filled with tough fibrous protein
_____5. composed of reticular layer, papillary layer, and accessory structures
_____6. TWO layers that contain Langerhan’s cells
_____7. layer responsible for the formation of fingerprints
_____8. layer containing cleavage lines, flexure lines, and stretch marks
_____9. site of subcutaneous injections
_____10. layer which contains keratohyalin granules
a. hypodermis
b. stratum basale
c. dermis
d. stratum corneum
e. stratum spinosum
f. stratum lucidum
g. stratum granulosum
h. reticular layer
i. papillary layer
j. melanocytes
k. keratinocytes
______
Match the description to the color term
_____1. reddened skin indicating embarrassment, fever, inflammation
_____2. pale skin indicating emotional stress, anemia, low blood pressure
_____3. abnormal yellow skin tone signifying liver disorder
_____4. metallic appearance of skin signifying Addison’s disease
_____5. black and blue marks where blood has clotted in tissue spaces
a. hematoma
b. erythema
c. bronzing
d. jaundice
e. pallor
______
Matching - each pigment will be used twice and only twice
_____1. local accumulation causes freckles and pigmented moles
_____2. causes pinkish color of oxygenated blood
_____3. yellow-orange pigment
_____4. most responsible for color in fair skinned
_____5. black, brown, yellow pigment
_____6. lipid soluble - accumulates in adipose tissue
a. melanin b. carotene c. hemoglobin