What does the brain monitor to control the rate of breathing during normal activities?

the level of carbon dioxide in the blood

Which happens if the aortic valve fails to close after the left ventricle has contracted?

the blood will flow back into the left ventricle

Danger elicits a flight or fight response; which explains what is happening in the human body?

the heart muscle contracts faster, increasing blood flow

Which describes how muscles extend an arm from a curled position by straightening the elbow?

the triceps contract and the biceps relax

Which of these is measured when a nurse takes a patient's blood pressure?

force of blood against artery walls as the heart beats

Which of these is the main function of the vomiting reflex?

to remove toxic material before it is absorbed

If someone has her gall bladder removed, how is this most likely to affect her?

may have problems digesting fats w/o storage for bile

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Human Body Review

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Questions 9

Answers

1
Which pair of diagrams explain why a hand pulls back suddenly from a hot flame?
1 & 2
3 & 4
2 & 4
1 & 3
2
What does the brain monitor to control the rate of breathing during normal activities?
the level of carbon dioxide in the air
the level of carbon dioxide in the lungs
the level of carbon dioxide in the cells
the level of carbon dioxide in the blood
3
Which happens if the aortic valve fails to close after the left ventricle has contracted?
less blood will flow through the aortic valve
the blood will flow back into the left ventricle
the blood will remain in the left ventricle
more blood will flow through the aortic valve
4
The heart must overcome the force of gravity. Which body position would require the LEAST work?
standing
lying down
sitting
kneeling
5
Danger elicits a flight or fight response; which explains what is happening in the human body?
breathing slows down, allowing the blood to absorb oxygen
the heart muscle contracts faster, increasing blood flow
the heart valves close, increasing blood volume in the heart
blood vessels relax & dilate, letting blood flow quickly
6
Which describes how muscles extend an arm from a curled position by straightening the elbow?
both the biceps and triceps contract
the triceps contract and the biceps relax
the biceps contract and the triceps relax
both the biceps and the triceps relax
7
Which of these is measured when a nurse takes a patient's blood pressure?
force of blood against artery walls as the heart beats
number of times per min. the patient's heart beats at rest
volume of blood entering the patient's heart between beats
amount of blood flowing through the patient's blood vessels
8
Which of these is the main function of the vomiting reflex?
to remove toxic material before it is absorbed
to empty the stomach when it has too much food in it
to rid the body of wastes
to expel food that has no nutritional value
9
If someone has her gall bladder removed, how is this most likely to affect her?
may develop diabetes due to an inability to produce insulin
may have problems digesting proteins w/o storage for bile
may develop diabetes due to an inability to produce amylase
may have problems digesting fats w/o storage for bile

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