nervous system

nervous system

continuously sends and receives messages from your body in order to manage critical functions

brain, spinal cord, nerves

three parts of the nervous system

brain

receives sensory input from spinal cord and nerve cells, controls functions

spinal cord

provides sensory information to the brain

nerves

bundles of nerve cells, or neurons that transmit impulses (messages) from your body to brain and from your brain to cells of body

brain

organizes and processes information for your body

brain

The \______ is responsible for memory and coordination.

cerebrum, cerebellum, brain stem

three parts of the brain

cerebrum

What is the largest part of the brain?

cerebrum

The \_______ allows memory, comprehension, and emotion.

right, left

In the cerebrum, the left side of the brain controls the \______ side of the body, right controls the \______.

frontal, parietal, temporal, occipital

What are the four lobes of the brain?

frontal lobe

controls motor and high order functions

parietal lobe

visual perception, comprehension (pain, touch, temperature)

temporal lobe

emotion, speech, hearing

occipital lobe

vision, colors

cerebellum

moves muscles, receives info from cerebrum

muscle memory

What term is associated with the cerebellum?

brain stem

controls breathing, digesting food, circulating blood, and involuntary muscles

four

How many regions of the brain stem?

between brain hemispheres

Where are the diencephalons?

thalamus, thalamus

The diencephalons contain both the hypo\______ and \______.

below

hypo\=

thalamus

relay center for sensory impulse (excluding smell)

hypothalamus

regulates sleep, hunger, thirst, body temperature, pressure, homeostasis

midbrain

located below diencephalons, joins cerebrum and spinal cord, relays signals between spinal cord and cerebrum and cerebrum and cerebellum

pons

below midbrain, joins cerebellum with cerebrum and left and right hemispheres, sends info between hemispheres and between cerebrum and cerebellum

medulla oblongata

SPINAL CORD!, controls heartbeat, breathing, and blood pressure

below

The pituitary gland is located \______ the hypothalamus.

spinal cord

The \______ \______ connects the brain and PNS.

31

How many pairs of spinal nerves are there?

Ascending Nerve Tract

carries information from body's muscles to the brain

Descending Nerve Tract

carries information from the brain to the body's muscles

spinal cord

What does cerebrospinal fluid bathe?

fibers, neurons

Nerves are made up of nerve \______ and bundles of \______.

neurons

specialized cells that send and receive messages (nerve impulses)

nucleus

controls cell and produces messages sent to the CNS

dendrites

receives impulses and sends them to cell body

axons

transmit impulses away from cell body

synaptic terminal

transmits impulses other neurons or muscle glands

synapse

between two neurons, between neuron and muscle

axon

tail\=

terminal

end of tail\=

motor neuron

activates muscles and glands

sensory neuron

detects environment

interneuron

connects everything

NO

Does the brain ever rest?

7

How many discrete items can the average brain hold at once?

nerves

What is included in the peripheral nervous system (PNS)?

brain, spinal cord

What is included in the central nervous system (CNS)

sensory impulses

messages taken in by the body that inform the nervous system about what's going on both inside and outside the body

motor impulses

messages sent to your body to control activities like walking, breathing, digestion, and talking

somatic, autonomic

What are the two parts of the PNS?

12, 31

The somatic system includes \__ pairs of cranial nerves and \__ pairs of spinal nerves.

internal

The autonomic system regulates the body's \______ environment.

senses

What do the CNS and PNS work together to receive (you have 5 of them)?

above kidneys

Where is the adrenal gland located?

fight, flight, or freeze

What is the adrenaline response called?

optic nerve

What connects the eye to the nervous system?

occipital lobe

What lobe of the brain does the optic nerve connect to?

vestibulocochlear

What is the ear connected to?

temporal lobe

What part of the brain is the vestibulocochlear connected to?

olfactory

What connects the nose to the nervous system?

glossopharyngeal

What connects taste to the nervous system?

touch neurons

What gives us a sense of touch?

parietal lobe

What part of the brain senses touch?

temperature, pain, pressure

What does your sense of touch detect?

True

True or false; we don't know a majority of information about the brain?

auntonomic nervous system

nerves that carry involuntary impulses to smooth muscle, cardiac muscle, and various glands

central nervous system

the portion of the vertebrate nervous system consisting of the brain and spinal cord

axon

long fiber that carries impulses away from the cell body of a neuron

cerebrospinal fluid

a solution that fills the hollow cavities of the brain and circulates around the brain and spinal cord. Provides nourishment, cushions, and removes wastes

dendrites

branching extensions of neuron that receives messages from neighboring neurons

electroencephalogram (EEG)

a graphical record of electrical activity of the brain

interneurons

neurons that carry outgoing information from the central nervous system to the muscles and glands

neuron

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

peripheral nervous system

the sensory and motor neurons that connect the central nervous system to the rest of the body

sensory neurons

neurons that carry incoming information from the sense receptors to the central nervous system

synapse

the junction between two neurons (axon-to-dendrite) or between a neuron and a muscle