FREE AND STUDY GAMES ABOUT CHAP 5- INT. SYSTEM

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FREE AND STUDY GAMES ABOUT CHAP 5- INT. SYSTEM

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -64 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Humans often purchase antiperspirants and deodorants to suppress and mask the odors of secretions from the a)mammary glands b)sebaceous glands c)eccrine glands d)apocrine glands

Answer:

apocrine glands Question 2: A callus may develop when both thin and thick skin are subjected to repeated pressure. Which layer of the epidermis develops the callus?a)stratum corneum b)stratum basale c)stratum spinosum d)stratum lucidum

Answer:

a)stratum corneum

Question 3: What is the pigment that protects the DNA of keratinocytes from mutations induced by UV radiation?a)albinism b)melanin c)carotene d)hemoglobin

Answer:

b)melanin

Question 4: The main components of the skin are the

a)epidermis and dermis b)dermis and hypodermis c)epidermis, dermis, hypodermis, and the subcutaneous layer d)epidermis, dermis, and hypodermis

Answer:

epidermis and dermis Question 5: T/F: Carotene and hemoglobin are two minor skin pigments that contribute to skin color.

Answer:

true Question 6: A splinter penetrated into the skin. The splinter nearly reached stratum basale of the epidermis. What is the final layer injured by this splinter?a)stratum granulosum b)stratum lucidum c)stratum corneum d)stratum spinosum

Answer:

d)stratum spinosum of the epidermis

Question 7: Which of the following is a yellow-orange skin pigment?

a)melanin b)hemoglobin c)cyanide d)carotene

Answer:

carotene

Question 8: The cuticle around a nail is the

a)hyponychium b)perinychium c)eponychium d)lunula

Answer:

eponychium Question 9: T/F: Vesicles known as melanosomes are taken into the cytosol of keratinocytes by endocytosis. The melanosome is transported to the superficial side of the keratinocyte to shield its nucleus.

Answer:

true Question 10: Which describes the effector response of sweat glands and blood vessels?a)glands stop releasing sweat; vessels constrict.b)glands stop releasing sweat; vessels dilate.c)glands release sweat; vessels dilate d)glands release sweat; vessels constrict.

Answer:

• sweat glands release sweat and blood vessel dilate

Question 11: We have unique patterns on our fingers, toes, palms, and soles created by a)Merkel cells b)dendritic (Langerhans) cells c)cleavage lines d)epidermal ridges

Answer:

epidermal ridges Question 12: Exposure to UV radiation causes the skin to darken by increasing the production

of:

a)collagen b)melanin c)keratin d)hemoglobin

Answer:

b)melanin

Question 13: Skin without keratin would be more likely to: a)tear upon being mechanically stressed.b)burn upon exposure to the sun.c)lose the sensation of touch.d)be unable to thermoregulate.

Answer:

a)tear upon being mechanically stressed

Question 14: All cells in the epidermis arise from mitotic activity in stratum

a)granulosum b)corneum c)basale d)lucidum

Answer:

basale

Question 15: Thin skin lacks stratum

a)corneum b)lucidum c)granulosum d)spinosum

Answer:

lucidum

Question 16: Mammary glands are specialized

a)sweat glands b)holocrine glands c)ceruminous glands d)sebaceous glands

Answer:

a)sweat glands

Question 17: Which of the following is a characteristic of the epidermis?

a)is well vascularized b)contains fat stored in adipose tissue c)contains collagen fibers d)consists of keratinized stratified squamous epithelium

Answer:

d)consists of keratinized stratified squamous epithelium