Test 5 Summer 2020, questions and answers PDF

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integumentary system...

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7/16/2020

Review Test Submission: Quiz 5 – BIOL-0143-01 Human Anat...

Patricia Grith

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BIOL-0143-01 Human Anat + Physio (2020SU) - Online Chapter 5: The Integumentary System

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Module I

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Review Test Submission: Quiz 5

Review Test Submission: Quiz 5

User

Patricia D Grith

Course

BIOL-0143-01 Human Anat + Physio (2020SU) - Online

Test

Quiz 5

Started

6/22/20 12:59 AM

Submitted

6/22/20 2:08 AM

Due Date

6/22/20 8:00 AM

Status

Completed

Attempt Score

84 out of 100 points 

Time Elapsed

1 hour, 9 minutes out of 1 hour and 15 minutes

Instructions

Results Displayed

1. There are a total of 50 multiple choice questions. 2. After you submit the quiz you will be able to see your score. After the quiz closes at the end of the week, you will be able to see and print out a full review. 3. Once you start the quiz you MUST complete it in the time limit. You can not pause it, postpone it, or restart it. 4. You have a time limit of 75 minutes for the quiz. After 75 minutes it will automatically submit itself and you are done, whether you have completed it or not! So make sure you have 75 minutes straight of uninterrupted time to devote BEFORE to start the quiz!!! All Answers, Submitted Answers, Correct Answers, Feedback, Incorrectly Answered Questions

Question 1

2 out of 2 points

The keratinocytes are tightly connected with each other by Selected Answer: Answers:

desmosomes. elastic bers. desmosomes. keratin.

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prekeratin. collagen bers.

Question 2

2 out of 2 points

While walking barefoot on the beach, Joe stepped on a thorn that penetrated through the sole of his foot to the dermis. How many layers of epidermis did the thorn penetrate? Selected Answer: Answers:

5 1 2 3 4 5

Question 3

0 out of 2 points

All of the following are functions of accessory structures of integument except Selected Answer:

protection of skull.

Answers:

production of skin pigments. thermoregulation. protection of skull. sensation of touch. excretion of sweat.

Question 4

0 out of 2 points

All of the following are derived from epithelial columns except Selected Answer:

sebaceous glands.

Answers:

nails. hair roots. hair follicles. sweat glands.

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Review Test Submission: Quiz 5 – BIOL-0143-01 Human Anat...

sebaceous glands.

Question 5

2 out of 2 points

________ is a small connective tissue peg that contains nerve endings and blood vessels. Selected Answer: Answers:

Hair papilla Hair cuticle Hair bulb Hair matrix Hair papilla Hair medulla

Question 6

2 out of 2 points

The layer of the skin that contains bundles of collagen and elastic bers responsible for the strength of the skin is the ________ layer. Selected Answer:

reticular

Answers:

papillary reticular epidermal subcutaneous hypodermal

Question 7

2 out of 2 points

Which of the following is a holocrine exocrine gland? Selected Answer: Answers:

sebaceous merocrine ceruminous apocrine sebaceous mammary

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Question 8

2 out of 2 points

From what structure does merocrine secretion occur? Selected Answer: Answers:

eccrine sweat gland ceruminous gland apocrine sweat gland sebaceous gland mammary gland eccrine sweat gland

Question 9

2 out of 2 points

Melanin is produced by melanocytes within the stratum Selected Answer: Answers:

basale. lucidum. spinosum. granulosum. corneum. basale.

Question 10

2 out of 2 points

The substance called sebum is commonly known as Selected Answer: Answers:

skin oil. regular sweat. milk. skin oil. odiferous sweat. earwax.

Question 11

2 out of 2 points

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All of the following are true of the pigment melanin exceptthat it Selected Answer:

decreases in concentration within cells during exposure to the sun. is usually some shade of brown or black.

Answers:

is released through melanosomes. protects DNA from the damaging eects of UV radiation.

decreases in concentration within cells during exposure to the sun. is produced by cells called melanocytes.

Question 12

2 out of 2 points

If the epidermis, dermis, and part of hypodermis are burned, it is classied as Selected Answer:

full thickness.

Answers:

full thickness. second degree. partial thickness. rst degree. none of the choices.

Question 13

2 out of 2 points

Each of the following statements concerning hair is true except Selected Answer:

scalp hairs grow constantly throughout life.

Answers:

the cortex of the hair is composed of hard keratin.

terminal hairs are heavy and more darkly pigmented than other types of hair. scalp hairs grow constantly throughout life. club hair is hair that has ceased growing. the medulla is the soft core of the hair.

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Question 14

2 out of 2 points

The layer of dividing cells at the base of the epidermis is the Selected Answer: Answers:

stratum basale. stratum corneum. stratum lucidum. stratum spinosum. stratum granulosum. stratum basale.

Question 15

2 out of 2 points

The tough "horny" supercial layer of the epidermis is known as the Selected Answer:

stratum corneum.

Answers:

stratum corneum. stratum spinosum. stratum basale. stratum granulosum. stratum lucidum.

Question 16

2 out of 2 points

Cyanosis signies that a patient has Selected Answer:

oxygen-starved skin.

Answers:

oxygen-starved skin. been kept out of the sun. had too much sun. been exposed to cyanide. an allergic reaction.

Question 17

2 out of 2 points

What is the survival rate of a localized malignant melanoma that is detected and https://myclass.kckcc.edu/webapps/assessment/review/review.jsp?attempt_id=_3036070_1&course_id=_38719_1&content_id=_1642265_1&outcom… 6/17

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removed in the early stages of the cancer? Selected Answer:

Above 95%

Answers:

Above 95% 75% 60% 40% less than 20%

Question 18

2 out of 2 points

The two components of the integumentary system are the Selected Answer: Answers:

cutaneous membrane and accessory structures. epidermis and supercial fascia. cutaneous membrane and accessory structures. cutaneous membrane and hypodermis. integument and hypodermis. epidermis and dermis.

Question 19

2 out of 2 points

When the arrector pili muscles contract, Selected Answer:

"goose bumps" are formed.

Answers:

"goose bumps" are formed. sweat is released from sweat glands. the skin changes color. shivering occurs. hairs are shed.

Question 20

2 out of 2 points

The epidermis in the thin skin contains ________ layer(s) and in the thick skin contains ________ layers. Selected Answer:

4; 5

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Answers:

1; 2 2; 3 3; 4 4; 5 5; 6

Question 21

0 out of 2 points

All of the following are true of the hypodermis exceptit Selected Answer: Answers:

contains many blood vessels. permits independent movement of deeper structures. stores energy reserves. contains large amounts of adipose tissue. is attached to the dermis by a basement membrane. contains many blood vessels.

Question 22

2 out of 2 points

What is the most common type of cells in the subcutaneous layer? Selected Answer: Answers:

adipocytes keratinocytes melanocytes broblasts brocytes adipocytes

Question 23

2 out of 2 points

The ________ in keratinocytes protects the epidermis and dermis from the harmful eects of sunlight. Selected Answer: Answers:

melanin keratin sebum

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hemoglobin carotene melanin

Question 24

2 out of 2 points

Dandru is a disorder that results in dry skin akes forming in the scalp. A common cause of dandru could be Selected Answer:

inammation around sebaceous glands.

Answers:

inammation around sebaceous glands. inactive apocrine sweat glands. inactive merocrine sweat glands. overactive arrector pili muscles. lack of lamellated corpuscles.

Question 25

0 out of 2 points

All of the following are true of epidermal ridges exceptthat they Selected Answer: Answers:

extend into the dermis. produce patterns that are determined genetically. extend into the dermis. interconnect with the dermal papillae. contain increased numbers of free nerve endings. cause ridge patterns on the surface of the skin.

Question 26

0 out of 2 points

Perspiration is produced by ________ glands. Selected Answer: Answers:

apocrine sweat ceruminous sebaceous apocrine sweat merocrine sweat

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mammary

Question 27

2 out of 2 points

Skin wrinkle and sagging is caused by Selected Answer: Answers:

all of the choices. UV radiation. aging. hormonal changes. all of the choices. none of the choices.

Question 28

2 out of 2 points

In which layer of skin are keratinocytes produced? Selected Answer: Answers:

stratum basale dermis stratum corneum subcutaneous layer stratum spinosum stratum basale

Question 29

2 out of 2 points

All of the following are correct regarding hair growth cycle except that Selected Answer:

the hair becomes club hair during regression phase.

Answers:

the hair becomes club hair during regression phase. during the active phase, the hair grows continuously. a hair in the scalp grows for 2 — 5 years. club hair is shed during follicle reactivation.

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Question 30

0 out of 2 points

All of the following can be used in the management of severe burn except Selected Answer:

cell culture.

Answers:

uid replacement. corticosteroids. antibiotics. skin graft. cell culture.

Question 31

2 out of 2 points

________ hairs are coarse pigmented hairs. Selected Answer: Answers:

Terminal Keratinous Terminal Follicular Dense Vellus

Question 32

2 out of 2 points

Central adiposity is strongly associated with Selected Answer:

cardiovascular disorders.

Answers:

cardiovascular disorders. liver diseases. lung diseases. reproductive illnesses. kidney disorders.

Question 33

2 out of 2 points

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The highest concentration of merocrine sweat glands is found Selected Answer:

on the palms of the hands. on the chest.

Answers:

on the palms of the hands. in the axillae. on the upper back. surrounding the genitals.

Question 34

2 out of 2 points

Merocrine sweat glands Selected Answer:

secrete a watery uid directly onto the surface of the skin.

Answers:

are compound alveolar glands. increase in number and activity with aging.

produce organic secretions that are metabolized by bacteria to produce body odor. primarily function in lubricating the hairs. secrete a watery uid directly onto the surface of the skin.

Question 35

2 out of 2 points

From what layer of skin are melanosomes released? Selected Answer:

stratum basale

Answers:

stratum basale reticular layer of dermis stratum coneum hypodermis papillary layer of dermis

Question 36

2 out of 2 points

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________ is a pigment found in vegetables that can make the skin appear orange or yellow. Selected Answer: Answers:

Carotene Chlorophyll Carotene Hemoglobin Bilirubin Melanin

Question 37

2 out of 2 points

The type of most cells that form the strata in the epidermis are Selected Answer: Answers:

keratinocytes. adipocytes. dendritic cells. broblasts. melanocytes. keratinocytes.

Question 38

0 out of 2 points

Insensible perspiration takes place in the Selected Answer: Answers:

stratum granulosum. stratum granulosum. stratum basale. stratum spinosum. stratum corneum. stratum lucidum.

Question 39

2 out of 2 points

All of the following are true of perspiration produced by merocrine sweat glands exceptthat it

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Selected Answer: Answers:

produces the body odor characteristic of "sweating." contains electrolytes and waste products. is very watery. helps prevent bacteria from colonizing the skin. produces the body odor characteristic of "sweating." helps cool the body when it evaporates.

Question 40

2 out of 2 points

Each of the following is a function of the integumentary system except Selected Answer: Answers:

synthesis of vitamin C. maintenance of body temperature. provision of sensation. protection of underlying tissue. excretion of salts and wastes. synthesis of vitamin C.

Question 41

2 out of 2 points

The most dangerous type of skin cancer is termed Selected Answer: Answers:

malignant melanoma. melanosome. metastasis. cyanosis. malignant melanoma. basal cell carcinoma.

Question 42

2 out of 2 points

The ________ glands in the axilla become active at the time of puberty. Selected Answer: Answers:

apocrine sweat sebaceous

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ceruminous apocrine sweat axillary merocrine sweat

Question 43

2 out of 2 points

________ sweat glands are widely distributed across the body surface, ________ glands are located wherever hair follicles exist, and ________ sweat glands are found only in a few areas. Selected Answer:

Merocrine; sebaceous; apocrine

Answers:

Apocrine; merocrine; sebaceous Apocrine; sebaceous; merocrine Merocrine; sebaceous; apocrine Sebaceous; merocrine; apocrine Merocrine; apocrine; sebaceous

Question 44

2 out of 2 points

An albino individual lacks the ability to produce Selected Answer: Answers:

melanin. perspiration. melanin. carotene. hemoglobin. keratin.

Question 45

2 out of 2 points

________ are cells in the epidermis that are part of the immune system. Selected Answer: Answers:

Dendritic cells Squamous cells Merkel cells

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Dendritic cells Melanocytes Basal cells

Question 46

2 out of 2 points

________ are ne hairs that lack pigment and cover much of the body surface. Selected Answer:

Vellus hairs

Answers:

Velvet hairs Follicular hairs Vellus hairs Terminal hairs

Question 47

0 out of 2 points

Milk is produced by ________ glands. Selected Answer: Answers:

mammary sebaceous ceruminous mammary eccrine sweat merocrine sweat

Question 48

2 out of 2 points

All of the following are characteristics of the epidermis exceptthat it Selected Answer:

is vascularized.

Answers:

is vascularized. is multilayered. is exible. ...