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Anatomy test 3
Terms in this set (22)
What part of the brain controls voluntary functions?
the cerebral cortex/cerebrum
How are motor comands conveyed to the periphery for execution by neural pathways?
by nerves or tracts
______ are the means by which your nervous system translates info concerning the internal and external environment into a form that is usable by the brain, whereas ____ are the means by which your body responds to changing conditions
how is superficial sensation stimulated?
by stimulation from the surface of the body (heat, pain, touch)
Deep sensation includes?
muscle tension, muscle length, joint position sense, muscle pain, pressure and vibration.
what does the central nervous system include?
the brain (berebrum, cerebellum, subcortical structures, brainstem) and spinal chord.
The peripheral nervous system includes?
the 12 pairs of cranial nerves and 31 pairs of spinal nerves as well as sensory receptore
______________ governs involuntary activities fo the visceral muscles or viscera, including glandular secretions, heart function, and digestive function
autonomic nervous system
What are the two componenets of the Autonomic nervous system?
the Sympathetic (fight or flight) and the parasympathetic (calms you down)
What does the diencephalon include?
the pituitary gland, thalamus, hypothalamus, and optic tract
what does the mesencephalon include?
midbrain of the brainstem.
What is the mechanism for transmitting info through the nervous system?
the neurons response to a stimulation
What is excitation and inhibition?
Excitation- the stimulation that causes an increase of activity of the tissue stimulated (light changed and people behind you honked so you move)
Inhibition- stimulation of a neuron that reduces the neurons output (hear a siren so pull over)
Sensory neurons are generally _______ with the exception of _______.
-neurons that transmit info about smell, hearing and vestibular senses (these are bipolar)
What is the job of interneurons?
to provide communication between other neurons and interneurons do not exit the central nervous system
What is the most highly evolved and organized structure of the human body?
What are the three meningeal linings from outside to inside?
dura mater, arachnoid membrane, pia mater
What are ventricles of the brain?
Spaces within the brain through which csf flows.
What are the 4 ventricles of the brain?
1) right lateral ventricle
2) left lateral ventricle
3) the third ventricle
4) the fourth ventricle
What is a choroid plexus>?
an aggregate of tissue that produces CSF....the plexus of the lateral ventricles produce the most fluid
Where is wernickes area located?
the temporal lobe
Where is brocas area located?
the frontal lobe
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