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aleksandrvk [35]
3 years ago
8

How does a pair of Skeletal muscles work together?

Biology
2 answers:
erica [24]3 years ago
7 0

Answer:

Skeletal muscles only pull in one direction. For this reason they always come in pairs. When one muscle in a pair contracts, to bend a joint for example, its counterpart then contracts and pulls in the opposite direction to straighten the joint out again.

Explanation:

So the answer is B!!

Sergeeva-Olga [200]3 years ago
5 0
Skeletal muscles are controlled by the somatic nervous system ; whereas the autonomic nervous system controls the involuntary muscles. Involuntary muscles include muscles that line the internal organs and the blood vessels .
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3 years ago
Calculate the cardiac output if heart rate (HR) is 90 beats per minute, stroke volume (SV) is 110 ml/beat, end diastolic volume
Yakvenalex [24]

ANSWER: None of the above options are correct.

Cardiac Output(CO) = Stroke Volume(SV) × Heart Rate(HR)

Therefore where HR= 90bpm and SV= 110ml/min,

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EXPLANATION:

CARDIAC OUTPUT is the volume of blood being pumped by the heart into the systemic circulation per minute.

Cardiac output is the product of two variables, stroke volume and heart rate.

STROKE VOLUME is the amount of blood pumped out by the left ventricle in each contraction.

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4 years ago
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5 0
3 years ago
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8 0
3 years ago
Stabilize the ________ with two boards that extend from the upper thigh to the bottom of the foot.
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