30 terms

Anatomy and Physiology Nerves and Nervous System

Chapter 7 Nervous System
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Cranial Nerves: I
I - Olfactory nerve- smell
Cranial Nerves: II
II - Optic Nerve- vision
Cranial Nerves: III
III - Oculomotor Nerve- motor fibers to eye muscles
Cranial Nerves: IV
IV - Trochlear- motor fiber to eye muscles
Cranial Nerves: V
V - Trigeminal nerve- sensory for face and chewing muscles
Cranial Nerves: VI
VI - Abducens nerve- motor fibers to eye muscle
Cranial Nerves: VII
VII - Facial Nerve- sensory for taste; motor fibers for face
Cranial Nerves: VIII
VIII - Vestibulocochlear nerve- sensory for balance and hearing
Cranial Nerves: IX
IX - Glossopharyngeal nerve- sensory for taste; motor fibers for pharynx
Cranial Nerves: X
X - Vagus nerves- sensory and motor fibers for pharynx, larynx, and viscera
Cranial Nerves: XI
XI - Accessory nerve- motor fibers to neck and upper back
Cranial Nerves: XII
XII - Hypoglossal nerve- motor fibers to tongue
What does the CNS include?
The brain and spinal cord
What neuron structure receives receptors?
Dendrites
What helps speeden up the impluse on an axon?
Myelin sheath
Reflix arc is made of what? And what is the process?
afferent neurons --> association neuron (integration center) --> efferent neuron / effector(motor neuron)
Name two effectors found in the PNS?
muscles and glands
What are the three main parts of a brain?
medulla oblangata, pons, mid-brain
What seperates the frontal and parietal lobe?
central sulcas
What happens when the Broca area is injured?
impairment of speech
What is the hypothalamus?
Thermostat
What are three layers of meninges from out to in?
durra, arachnoid, pia
Is a stroke a tramautic brain injury?
no
What is a concussion?
a cerebral adema
What is the reason of alzheimers?
plaque build up
What are the parts of spinal cord from top to bottom?
cervical, thoracic, lumbar, sacral
What are the parts of the autonomic nervous system?
parasympathetic and sympathetic
What makes up the Somatic nervous system?
skeletal
What is the symatetic system?
Parasympathetic system?
systematic- fight or flight
para- digestion
Do neurons in adults undergo mitosis?
No