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31 Cards in this Set
- Front
- Back
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XII. Hypoglossal
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Tongue movement: Stick out tongue
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IX. Glossopharyngeal
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Gag reflex and promotes swallowing, production of saliva
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V. Trigeminal
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Sensation of touch and pain on skin of face:
Touch face Chewing Muscles |
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X. Vagus
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slows the heart; increases the mobility of digestive tract
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III. Oculomotor
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constricts eye pupil
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VII. Facial
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carries impulses from anterior taste buds of the tongue
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II. Optic
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Vision: Identify objects w/in view and clarify what is seen
reading, viewing an eye chart |
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IV. Trochlear
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control one external eye muscle
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VI. Abducens
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Voluntary movement of lateral rectus muscle of eye: allows eye to roll side to side
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Nerves carry BOTH sensory and motor
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mixed nerves
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Nerves carry impulses(messages) TOWARD the CNS
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sensory
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Nerves carry impulses(messages) AWAY from the CNS
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motor
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Ventral rami (C1-C5) form
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cervical plexus
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к(о)
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toward / for
+ Dat |
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No plexus (T1-T12)
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intercostal nerve
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Lumbar rami (L1-L4) form
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lumbar plexus
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L4-L5; S1-S4 form
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sacral plexus
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The motor subdivision of the PNS
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Autonomic Nervous System (ANS)
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ANS controls....
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the body activities automatically
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Somatic Nervous System
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the motor subdivision that controls our skeletal muscles.
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Autonomic Nervous System (ANS)
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has a chain of two motor neurons.
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ANS has two divisions
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sympathetic
parasympathetic |
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Sympathetic "fight or flight"
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mobilizes the body during extreme situations) fear, exercise, or rage)
Arises from the spinal cord T1- T12 |
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Norepinephrine
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adrenergic fibers release neurotransmitter
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Parasympathetic
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Allows us to unwind and conserve energy.
Arises from the brain and spinal cord S2-S4 |
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Acetylcholine
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Cholinergic fibers release neurotransmitter
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What should the mother avoid during her pregnancy, in particular during the 1st trimester?
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smoking, drugs, radiation, cocaine(speeds up heart rate) measles
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What might be an issue with a premature baby?
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Premature babies have trouble regulation body temperature because the hypothalamus is one of the last brain areas to mature prenatally
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What is orthostatic hypotension?
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Type of low blood pressure resulting from changes in body position.
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Why does orthostatic hypotension occur in the elderly more often than in young people?
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Sympathetic nervous system doesn't work efficiently...if they stand up to quickly, they faint because the sympathetic nervous system does react quickly.
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What is arteriosclerosis and how dies it cause senility?
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It is an aging process"old man named Art."
Lack of oxygen due to aging. sudden loss of blood and oxygen delivery to brain. |
