Section 16B (Life Science)

Your nervous system controls ___

• movements

• internal functions

• awareness

• emotions

• hair color

1. Each piece of information that your body can react to is called a __. 

Tags

NGSS.MS-LS1-8

__ are specialized cells that can create or transfer nerve impulses.

• Neurons

• Dendrites

• Synapses

• axons

Tags

NGSS.MS-LS1-3

Identify the parts of a nerve cell.

• moves impulses from one nerve to another

• CELL BODY

• short extensions coming from cell body

• EXTENSIONS

• cytoplasm, organelles, & nucleus

• AXONS

• found at the end of axons

• DENDRITES

Tags

NGSS.MS-LS1-2

1. Label the part of a nerve

b

a

c

d

e

cell body

axons

nucleus, organelles

extensions

dendrites

Tags

NGSS.MS-LS1-2

1. The body has THREE kinds of neurons:

• signals from brain to direct movement

• Interneurons

• connect sensory and motor neurons

• Sensory neurons

• pick up info and transmits to the brain

• motor neurons

Reorder the chain of nerve impulses relay from the end of an axon tip (and its dendrite) :

• A gap called a synapse to “fire” chemicals to trigger/pass-along the impulse

• Neurotransmitters which signal 

• To the connecting neuron membrane of the next neuron in the chain.

1. CENTRAL nervous system includes __

• brain

• spinal cord

• all nerves that connect to the spinal cord

1. ​ (a)   nervous system includes all of the ​ (b)   that connect to the ​ (c)   nervous system.

• Peripheral
• central
• nerves
• muscles

1. Match the parts of the brain with their functions:

• 1. helps control

     1. Heart beat, blood pressure

• Cerebrum

• Processing incoming sensory information

• Cerebellum

• Coordinating motion

• Brain stem