Free Printable Nervous System 1

Worksheets

Nervous System 1

Total questions: 18

Worksheet time: 11mins

Name

Class

Date

Our ______ receive messages and send them to the brain. The brain sends messages to our body on how to respond.

heart

lungs

nerves

Without the nervous system, you couldn't

walk

breathe

think

all of the above

What is the nervous system?

Controls the body by responding to stimuli.

Breaks down food.

Brings O₂ to our cells.

Secretes hormones into our blood.

What are the two parts of the central nervous system?

Brain and heart

Lungs and spinal cord

Spinal cord and heart

Brain and spinal cord

The spinal cord connects the ________________ to the rest of the body.

brain

heart

arms and legs

lungs

These receive signals in a neuron.

myelin sheath

axon

ribosome

dendrites

The nerve cell that carries impulses from a sense receptor to the brain or spinal cord is a _____________.

Motor Neuron

Sensory Neuron

Relay Neuron

The nerve cell that transmits impulses from the brain or spinal cord to a muscle or gland.

Motor Neuron

Relay Neuron

Sensory Neuron

Schwann cell

What part of the neuron carries the impulse toward the nerve cell body?

Dorsal Root

Dendrites

Myelin Sheath

Axon

10.

What part of the neuron is myelinated?

Cell Body

Axon

Synapse

Dendrite

11.

A sudden change in the polarity of the membrane of a neuron, gland cell, or muscle fiber that causes the transmission of electrical impulses

Action potential

Membrane potential

Resting potential

Threshold

12.

A chemical substance that transmits nerve impulses across a synapse

Neurotransmitter

Axon

Synapse

Nerve

13.

What are the two parts of the nervous system?

The brain and spinal cord

The central nervous and peripheral nervous system

The neurons and the dendrites

The cerebrum and the medulla

14.

The gap that a message has to cross to get from one neuron to the other is called the _____

synapse

dendrite

axon

nucleus

15.

If a neuron responds at all, it responds completely. This is known as the

threshold

all-or-none response

neuronal pool

withdrawal reflex

16.

What is a neurotransmitter?

fatty covering of the axon

nerve cell

chemical messenger

gap between neurons

17.

A receptor that detects stimuli from the external environment is

a muscle fiber

the thyroid gland

a salivary gland

a taste bud

18.

What contains the nucleus of the neuron?

Terminal Bouton

Soma

Axon Hillock

Myelin Sheath

100 %

Nervous System 1

Total questions: 18

Worksheet time: 11mins

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