NERVOUS SYSTEM

Coordinates all activities in the body by transmitting messages back and forth to every cell of the body through _________________.

Central Nervous System

_______________ and ______________

Receives messages from the PNS (__________________________________________________________________) and sends a response or reaction.

Tells the body how to ______________________________________

_________________

About 18 +/- inches

Sends messages from __________________________ to ________________________ and visa versa.

Brain

_______________________________________________________________________________________________________________

Allows you to think, reason, coordinate, learn, remember, perform all bodily functions whether voluntary or involuntary

Brain Parts

______________

_______________

_______________

Cerebrum

LARGEST, most complex part of brainControls

__________________________________________________________________________

______________side controls the left side of the body

______________ side controls the right side of the body

Cerebrum Lobes

________________ Lobe

_____________ Lobe

_____________ Lobe

____________________ Lobe

Frontal Lobe

Voluntary ______________

Use of _________________

_____________

_____________

Parietal Lobe

Sensory Information

_________________________________________________________________—where your body is and what it is

doing

Occipital Lobe

__________________

Temporal Lobe

_____________________________________________________________________________________

___________________________

Coordinates movement of the skeletal muscles

Posture

Balance

Brain Stem

3-inch stalk of nerve cells and fibers that connect the __________________________________________________________________________

The “Gateway” from the brain to the body and the body to the brain

Brain Stem Parts_______________________

____________________

____________________

Thalamus

Hypothalamus

Medulla OblongataThe lowest portion of the brain stem

Regulates _____________________ rate

Regulates _____________________ rate

Regulates hearing, talking, and swallowing

Regulates reflexes such as:__________________________________________________________________

Pons

Sits just above the M.O.

Connects nerve impulses to other parts of the ______________________

Helps breathing

Controls muscles of the ________________________________

Midbrain

Highest portion of the brain stem

Involved in controlling ________________ movement and _______________ size

_______________________

Relay center for incoming messages

Kind of

like the

Pony

Express,

:~)

Hypothalamus

Controls various body processes

_____________________________________________________

Through the __________________gland it controls metabolism, sexual development, and emotion

Peripheral Nervous System (PNS)Nerves outside of the

______________________________________

Sends info from inside and outside of your body to the CNS for the brain to respond to

PNS Parts

A__________________ Nervous System

____________________ Nervous System

Autonomic Nervous System

Controls Involuntary functions_______________________—Reflex—”Fight or Flight”

_______________________—opposes actions of the sympathetic nervous system by slowing bodily functions during rest

Somatic Nervous System

Relays messages from the eyes, ears, nose, tongue, and skin to the CNS which sends a response to the _______________________ muscles to move or react to a situation

Neurons

Nerve cells

Cell body -__________________________________________________________________________________—nucleus

_______________—branched structures that extend from the cell body. They receive info from other neurons or sensory receptors and transmit impulses toward the cell body

_______________—transmit messages away from the cell body and toward other neurons, cells, or glands

THE BRAIN