The Human Body: Part One - Test Test

Question 1

The steps of the action potential are listed in random order. A. The nerve impulse moves down the axon. B. The inside of the membrane becomes positive, and the outside becomes negative. C. A stimulus is received by the dendrites. D. The membrane has a resting potential that is positive on the outside and negative on the inside. Which of these lists the steps in the correct order?

Revolt · Accepted Answer

B: D, C, B, A

Question 2

The lungs, nose, and trachea are organs of the respiratory system. Which best describes these organs?

Revolt · Accepted Answer

D: They deliver oxygen to the blood.

Question 3

Which conditions need to be in balance for cells to function? Choose three correct answers.

Revolt · Accepted Answer

B: body water; C: blood sugar; E: body temperature

Question 4

Lewis is exercising and his muscles need oxygen. Which best describes how systems interact to bring his body into homeostasis?

Revolt · Accepted Answer

C: The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system.

Question 5

Which function does a neuron perform in a human body?

Revolt · Accepted Answer

D: It generates electrochemical signals so that the body can react to stimuli.

Question 6

Which type of neuron detects a raindrop falling on skin?

Revolt · Accepted Answer

D: sensory neuron

Question 7

Which injury would likely cause the body to permanently lose the ability to perform simple reflexes?

Revolt · Accepted Answer

A: damage to the nerve cells in the spinal cord

Question 8

The body obtains sugar from food. Which system most directly affects blood sugar levels?

Revolt · Accepted Answer

A: digestive

Question 9

Which part of the autonomic system is most likely to be dominant while someone is napping after lunch?

Revolt · Accepted Answer

C: the parasympathetic nervous system

Question 10

Which structures are parts of the central nervous system? Choose two correct answers.

Revolt · Accepted Answer

C: the brain; F: the spinal cord

The Human Body: Part One - Test Test Answers

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