The Circulatory and Respiratory Systems Answers

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Which statements describe the synapse? Select all that apply. It carries neurotransmitters from one neuron to the next cell.It is part of the neuron.It ensures that information travels in one direction only.It carries information through chemical impulses to the cell body.It is the gap between neurons.It ensures that information travels in multiple directions.

A
It carries neurotransmitters from one neuron to the next cell.
B
It is part of the neuron.
C
It ensures that information travels in one direction only.
D
It carries information through chemical impulses to the cell body.
E
It is the gap between neurons.
F
It ensures that information travels in multiple directions.
22
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Which of the following correctly differentiates the types of muscles based on the type of movement that they produce?

A
smooth is voluntary; skeletal and cardiac are involuntary
B
skeletal is voluntary; smooth and cardiac are involuntary
C
cardiac is voluntary; skeletal and smooth are involuntary
D
smooth, skeletal, and cardiac are all involuntary
24

How does the skeletal system help aid the body when it is sick?

A
physical protection of internal organs from disease-causing organisms
B
filtration of disease-causing organisms from the body
C
production of white blood cells that can destroy disease-causing organisms
D
storage of calcium that makes bones stronger and less prone to attack from disease-causing organisms
25

What functions does the muscular system perform?

A
It provides stability, movement, and posture.
B
It generates and conducts electrical signals.
C
It produces melanin, which protects from the sun.
D
It produces oil, which protects from foreign invasion.

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