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29 Cards in this Set

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  • Back
Cerebellum
Located at the back of the head below the cerebrum. Maintains balance and coordination and is responsible for voluntary movement.
Cranial nerves
There are 12 pairs of cranial nerves orginating in the brainstem. They control the activities of the face and head.
Name the three layers of Meninges.
1)dura mater (outside)
2)arachnoid membrane (second or middle layer)
3)pia mater (closest to the brain and spinal cord containing blood vessels)
Cerebrum
Largest part of the brain responsible for intelligence, learning, judgment, memory, emotion association and discrimination.
CSF
Cerebrospinal fluid -- clear, watery fluid that cushions the brain and spinal cord.
Myelin sheath
Fatty tissue that surrounds and protects the axon of a nerve cell of the brain and spinal cord.
The Cerebrum is made up of the following (5):
1)cerebral cortex (outer layer)
2)convolutions (gyri)are the elevated portions
3)fissures (sulci)which are the depressions
4)hemispheres
5)lobes
Dendrite
Root like structures that receive impulses and conduct them to the cell body.
Nerve
One or more bundle of impulse-carrying fibers that connect the brain and spinal cord.
Spinal nerves
There are 31 pairs of spinal nerves enclosed in the spinal cord.
What does the frontal lobe of the Cerebrum do?
controls motor function
Ganglia
masses of nervous tissue located outside the brain and spinal cord.
Neuron
Individual nerve cell
Thalamus
relays sensory impulses to cerebral cortex.
Pituitary gland
Master gland (controlling center) located in the brain)
What does the parietal lobe of the Cerebrum do?
receives and interprets nerve impulses from the sensory receptors.
Hypothalamus
activates and controls the peripheral autonomic nervous system, endocrine processes, body temperature, sleep and appetite.
Plexus
A large network of nerves, i.e. brachial plexus - arms, chest, shoulders
What does the occipital lobe of the Cerebrum do?
controls eyesight
Impulse
Wave of excitation transmitted through nerve fibers and neurons
Pons
Bridge tissue connecting two parts of an organ
Axon
conducts impulses away from the cell body
What does the temporal lobe of the Cerebrum do?
controls the senses of hearing and smell
Medulla oblongata
The most vital part of the brain, controls basic life functions including muscles of respiration, heart rate, and blood pressure.
Reflex
Autonomic, involuntary response to some change, either inside or outside the body.
Brainstem
made up of the midbrain, pons and medulla oblongata. Connects the cerebral hemispheres with the spinal cord
Name the 4 lobes of the Cerebrum.
1)frontal lobe
2)parietal lobe
3)occipital lobe
4)temporal lobe
Meinges
Three layers of connective tissue membrane that enclose the brain and spinal cord.
Spinal cord
Conducts sensory and motor impulses to and from the brain