assignment #6 - unit review
modified true/false. write \ if the statement is true and \f\ if the statement is false. if false, correct a word or phrase to make the statement true.
_____ 1. by the time cells reach the stratum corneum, they are dead and filled with collagen.
_____ 2. sebaceous glands secrete oil.
_____ 3. if you are truly \smelly\ after a workout that works up a sweat, the smell is due to secretion from eccrine glands.
_____ 4. first degree burns are the most severe type of burn.
_____ 5. the stratum basale is the outermost layer of the epidermis.
_____ 6. carotene gives a bluish hue to the skin.
_____ 7. second degree burns involve the entire depth of the epidermis and a portion of the dermis.
_____ 8. each upper limb is considered 9% of the body skin surface area according to the rule of nines.
_____ 9. keratinization softens cells.
_____ 10. the part of the hair that you see outside of the body is the follicle.
_____ 11. the white, half - moon shaped area of your finger nail is called the cuticle.
_____ 12. arrector pili muscles cause goosebumps.
_____ 13. a vesicle is a small, fluid - filled, blister on the surface of the skin.
_____ 14. the protein found in large amounts in the outermost layer of epidermal cells is keratin.
_____ 15. joe burned himself on a hot pot. a blister forms and the burn is painful. joes burn would best be described as a third degree burn.
_____ 16. the dermis is rich in blood vessels and nerve fibers.
_____ 17. regardless of race, all human beings have about the same number of melanocytes.
_____ 18. the pinkish hue of individuals with fair skin is the result of the crimson color of oxygenated hemoglobin circulating in the dermal capillaries and reflecting through the epidermis.
_____ 19. when a patient is said to have hird degree burns,\ this indicates that that patient has burns that cover approximately 1/3 of the body.
_____ 20. eccrine and apocrine glands are the two types of sebaceous glands.
_____ 21. the major portion of the skin is comprised of the dermis.

Question

assignment #6 - unit review
modified true/false. write 	\ if the statement is true and \f\ if the statement is false. if false, correct a word or phrase to make the statement true.
_____ 1. by the time cells reach the stratum corneum, they are dead and filled with collagen.
_____ 2. sebaceous glands secrete oil.
_____ 3. if you are truly \smelly\ after a workout that works up a sweat, the smell is due to secretion from eccrine glands.
_____ 4. first degree burns are the most severe type of burn.
_____ 5. the stratum basale is the outermost layer of the epidermis.
_____ 6. carotene gives a bluish hue to the skin.
_____ 7. second degree burns involve the entire depth of the epidermis and a portion of the dermis.
_____ 8. each upper limb is considered 9% of the body skin surface area according to the rule of nines.
_____ 9. keratinization softens cells.
_____ 10. the part of the hair that you see outside of the body is the follicle.
_____ 11. the white, half - moon shaped area of your finger nail is called the cuticle.
_____ 12. arrector pili muscles cause goosebumps.
_____ 13. a vesicle is a small, fluid - filled, blister on the surface of the skin.
_____ 14. the protein found in large amounts in the outermost layer of epidermal cells is keratin.
_____ 15. joe burned himself on a hot pot. a blister forms and the burn is painful. joes burn would best be described as a third degree burn.
_____ 16. the dermis is rich in blood vessels and nerve fibers.
_____ 17. regardless of race, all human beings have about the same number of melanocytes.
_____ 18. the pinkish hue of individuals with fair skin is the result of the crimson color of oxygenated hemoglobin circulating in the dermal capillaries and reflecting through the epidermis.
_____ 19. when a patient is said to have 	hird degree burns,\ this indicates that that patient has burns that cover approximately 1/3 of the body.
_____ 20. eccrine and apocrine glands are the two types of sebaceous glands.
_____ 21. the major portion of the skin is comprised of the dermis.

Accepted Answer

### Question 1
# Brief Explanations:
Cells in stratum corneum are dead and filled with keratin, not collagen. So the statement is false; correct "collagen" to "keratin".
# Answer:
F, correct "collagen" to "keratin"

### Question 2
# Brief Explanations:
Sebaceous glands do secrete oil (sebum). So the statement is true.
# Answer:
T

### Question 3
# Brief Explanations:
The smell after workout from sweat is due to apocrine glands (not eccrine, eccrine is for cooling). So false; correct "eccrine" to "apocrine".
# Answer:
F, correct "eccrine" to "apocrine"

### Question 4
# Brief Explanations:
Third - degree burns are the most severe, first - degree are the least severe. So false; correct "First degree" to "Third degree".
# Answer:
F, correct "First degree" to "Third degree"

### Question 5
# Brief Explanations:
Stratum basale is the innermost layer of the epidermis, stratum corneum is outermost. So false; correct "outermost" to "innermost" or "stratum basale" to "stratum corneum".
# Answer:
F, correct "outermost" to "innermost" (or "stratum basale" to "stratum corneum")

### Question 6
# Brief Explanations:
Carotene gives a yellowish hue, hemoglobin (or melanin - related for other hues) for bluish (cyanosis is due to deoxygenated blood, but carotene is yellow). So false; correct "bluish" to "yellowish" (or other appropriate hue - giving factor for bluish, but in terms of carotene, it's yellowish).
# Answer:
F, correct "bluish" to "yellowish"

### Question 7
# Brief Explanations:
Second - degree burns involve the entire epidermis and part of the dermis. So the statement is true.
# Answer:
T

### Question 8
# Brief Explanations:
Each upper limb is 9% of body surface area (rule of nines: head/neck 9%, each upper limb 9%, each lower limb 18%, trunk 36%, perineum 1%). So the statement is true.
# Answer:
T

### Question 9
# Brief Explanations:
Keratinization hardens cells (keratin is a tough protein). So false; correct "softens" to "hardens".
# Answer:
F, correct "softens" to "hardens"

### Question 10
# Brief Explanations:
The part of hair outside the body is the shaft, the follicle is the structure in the skin. So false; correct "follicle" to "shaft".
# Answer:
F, correct "follicle" to "shaft"

### Question 11
# Brief Explanations:
The white half - moon shape on the nail is the lunula, the cuticle is the thin layer at the base. So false; correct "cuticle" to "lunula".
# Answer:
F, correct "cuticle" to "lunula"

### Question 12
# Brief Explanations:
Arrector pili muscles contract to cause goosebumps. So the statement is true.
# Answer:
T

### Question 13
# Brief Explanations:
A vesicle is a small, fluid - filled blister on the skin. So the statement is true.
# Answer:
T

### Question 14
# Brief Explanations:
The outermost layer of epidermal cells (stratum corneum) is rich in keratin. So the statement is true.
# Answer:
T

### Question 15
# Brief Explanations:
A burn with blister and pain is second - degree (third - degree burns are painless as nerves are destroyed). So false; correct "third degree" to "second degree".
# Answer:
F, correct "third degree" to "second degree"

### Question 16
# Brief Explanations:
The dermis has a rich blood supply and nerve fibers. So the statement is true.
# Answer:
T

### Question 17
# Brief Explanations:
All humans have approximately the same number of melanocytes, skin color differences are due to melanin production/type. So the statement is true.
# Answer:
T

### Question 18
# Brief Explanations:
Fair - skinned individuals' pinkish hue is from oxygenated hemoglobin in dermal capillaries showing through. So the statement is true.
# Answer:
T

### Question 19
# Brief Explanations:
Third - degree burns refer to the depth of burn (involving all layers of skin, sometimes muscle/bone), not the percentage of body covered. So false; correct "approximately 1/3 of the body" to "all layers of the skin (or appropriate depth - related description)".
# Answer:
F, correct "approximately 1/3 of the body" to "all layers of the skin" (or similar depth - based description)

### Question 20
# Brief Explanations:
Eccrine and apocrine are types of sweat glands, sebaceous glands are different (secrete sebum). So false; correct "sebaceous" to "sweat" (or "eccrine and apocrine are types of sweat glands, sebaceous glands have their own classification").
# Answer:
F, correct "sebaceous" to "sweat"

### Question 21
# Brief Explanations:
The dermis is the major portion of the skin (epidermis is thin, dermis is thicker and contains many structures). So the statement is true.
# Answer:
T

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