Tuesday
April 21, 2015

Homework Help: Science

Posted by Mstv on Sunday, June 1, 2014 at 6:16pm.

1. Which of the following sets of terms could be used in a description of the peripheral nervous system?
A. motor neuron, interneuron, sensory neuron
B. brain, sensory neuron, myelin
C. interneuron, spinal cord, autonomic
D. somatic, brain, spinal cord

2. Which of the following is not a function of the human nervous system?
A. regulating heartbeat
B. listening to music
C. moving oxygen from air into the blood
D. signaling the diaphragm to contract

3. Which of the following correctly describes how nerve impulses move throughout the body?
A. electrical transmission through neurons and electrical transmission between neurons
B. chemical transmission through neurons and chemical transmission between neurons
C. chemical transmission through neurons and electrical transmission between neurons
D. electrical transmission through neurons and chemical transmission between neurons

4. An external event stimulates a sensory nerve, which transmits a signal to an interneuron in the spinal cord. This stimulates a motor neuron, which stimulates a muscle to contract. Which of the following terms applies to the sequence of events described above?
A. voluntary motion
B. reflex
C. somatic response
D. synapse

5. A person wakes from sleep, hears a strange noise downstairs, and becomes alarmed. Which of the following describes the corresponding events taking place in his nervous system?
A. motor neurons spinal cord brain
B. brain motor neurons
C. brain spinal cord sensory neurons
D. sensory neurons spinal cord brain.

2.c
5.c

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