Unit Test — Unit test Answers

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21
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The table contains information about membranes and some of their structural components. Information is missing as indicated by the letters X, Y, and Z.Structures Found in MembranesMembraneStructural componentsXepidermis, dermis serous membraneYZloose connective tissueWhich terms correctly complete the table?

A
X - synovial membrane; Y - dura matter, pia matter; Z - meninges
B
X - cutaneous membrane; Y - dura matter, pia matter; Z - synovial membrane
C
X - cutaneous membrane; Y - parietal layer, visceral layer; Z - synovial membrane
D
X - synovial membrane; Y -parietal layer, visceral layer; Z - meninges
22
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Homeostasis is the body’s natural tendency to

A
maintain internal balance.
B
match the outside environment.
C
fluctuate with stimuli.
D
change slowly over time.
23

Maya suffered from a second-degree burn. Which body structures were most likely damaged?

A
nerve endings and dermis
B
nerve endings and subcutaneous layer
C
dermis and subcutaneous layer
D
dermis and epidermis
25

What is one main function of nervous tissue?

A
communication between the brain and the rest of the body
B
contraction of muscles that results in movement
C
transportation of fluids throughout the body
D
protection of organs from the environment
26

Which statement best explains why a patient with hyperthermia was given fluids in the hospital emergency room?

A
Hyperthermia can result in low blood sugar.
B
Hyperthermia can result in elevated blood pH.
C
Hyperthermia can result in frequent urination.
D
Hyperthermia can result in dehydration.
27

Padma is having a baby. Which best describes how her body will keep her in homeostasis?

A
A positive feedback mechanism increases the release of oxytocin to promote further contractions.
B
A negative feedback mechanism increases the release of oxytoxin to promote further contractions.
C
A positive feedback mechanism decreases the release of oxytoxin to promote further contractions.
D
A negative feedback mechanism decreases the release of oxytoxin to promote further contractions.
28

A patient with lung disease usually has difficulty breathing. How would this most likely affect the patient?

A
The heart would not be able to produce new blood cells.
B
The blood pumped by the heart would be low in oxygen.
C
The cardiovascular system would help the lungs fill with air.
D
The lungs would stop interacting with the cardiovascular system.
29

Lorraine is unable to regulate the level of glucose in the blood. Which homeostatic disorder does she have?

A
diabetes mellitus
B
circadian rhythm disruptions
C
hypothermia
D
metabolic acidosis
30

A patient complains of thirst, blurry vision, numb hands, and frequent urination. Which statement best explains why a doctor performed a blood glucose test on this patient? (A blood glucose test tests for levels of sugar in the blood.)

A
The patient might have multiple sclerosis.
B
The patient might have sickle cell anemia.
C
The patient might have serious vision problems.
D
The patient might have diabetes.
31

A hormone called estrogen helps regulate the growth of the uterus. Which two organ systems are working together in this situation?

A
the endocrine and reproductive systems
B
the immune and endocrine systems
C
the reproductive and excretory systems
D
the immune and excretory systems
32

What are the four main types of exocrine glands?

A
pineal, thyroid, pituitary, adrenal
B
digestive, mammary, sweat, sebaceous
C
synovial, serous, cutaneous, meninges
D
dermis, epidermis, parietal, visceral
33

White blood cells travel through the blood and are a part of the cardiovascular system. Which other system also contains white blood cells?

A
the integumentary system
B
the respiratory system
C
the immune system
D
the endocrine system
35

Which is true of all organs in the human body?

A
They are made up of two or more tissue types.
B
They produce red and white blood cells.
C
They remove harmful substances from the body.
D
They are composed of one main type of cell.
37

Which statement describes an example of the integumentary system and immune system working together?

A
Blood pressure lowers to prevent loss of heat.
B
Hair on the skin helps keep the body warm.
C
White blood cells kill pathogens when the skin becomes infected.
D
Sensory nerves detect pain when the skin is pinched.
38

Calcium is a substance found in certain foods. It helps the body build and maintain strong teeth and bones. A diet high in calcium would be most helpful in preventing which disease?

A
myositis
B
arrhythmia
C
osteoporosis
D
COPD
40

Karin was exposed to extremely cold temperatures and was diagnosed with a homeostatic disorder. Which symptoms does she most likely have?

A
frequent thirst and urination
B
decreased heart rate and memory loss
C
blurred vision and high blood sugar
D
hot, itchy skin and nausea

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