Nervous System

What is the main function of the nervous system?

• clean waste water from the cells

• absorb nutrients for energy

• deliver messages to the brain

• pump blood throughout the body

Which system is most closely associated with the brain?

• nervous

• muscular

• circulatory

• respiratory

_____________ are specialized cells that are sensitive to stimuli and turn them into electrical impulses.

• synapses

• effectors

• impulses

• receptors

Tags

NGSS.MS-LS1-8

Nerve cells tell muscles what to do by using _______________.

• plasma

• vertebrae

• spinal cord

• electrical impulses

What are the three (3) main parts of the nervous system?

• cerebellum, cerebrum, medulla

• brain, spinal cord, nerves

• cochlea, nerves, vestibule

• brain, cochlea, medulla

What is any part of the body that produces a response to stimuli?

• neurons

• effectors

• receptors

• impulses

Tags

NGSS.MS-LS1-8

What is any quick response to stimuli that bypasses the brain?

• voluntray action

• involuntary action

• knee jerk

• reflex action

Any message carried by a neuron is called a(n)

• impulse

• neuron

• effector

• receptor

Any change or signal in the environment that can make an organism react in some way is called a(n)

• neuron

• stimuli

• effector

• receptor

Tags

NGSS.MS-LS1-8

A nerve cell; the basic building block of the nervous system

• brain

• neuron

• spinal cord

• nerve

Tags

NGSS.MS-LS1-3