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30 Cards in this Set
- Front
- Back
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Know the difference between a prime mover, synergist, and antagonist.
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PM-Contractions responsible for movement
S-Muscle collaborating with other muscle. A-Muscles acting against PM. |
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Which lever system is the most common in the human body?
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Third class
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How are the parts of a lever arranged?
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Effort between resistance and fulcrum.
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What is hyperextension?
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Joint forced the opposite way of normal motion.
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What is the proper term for the achilles tendon?
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Calcaneal tendon.
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What is the overall funcion of the nervous system?
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Controls the body and communication, maintains homeostasis.
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In a resting neuron, what are the relative charges of the inside and outside of the cell?
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negative inside
positive outside |
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What happens during an action potential?
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Voltage gated sodium channels open, membrane potential reversed.
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What is the refractory period?
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A neuron not responding to stimuli.
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What is saltatory transmission? What type of nerves are capable of it?
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Only in myelinated fibers, jumps from node to node.
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What are the functions of motor, sensory, and association neurons?
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Motor-CNS to effector
Sensory-Brings info to CNS Association-Neur. to neur. |
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What are the functions of dendrites and axons?
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Dendrites-Carry impulse to cell
Axon-Carry away |
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What is an effector?
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Anything that effects homeostasis.
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List the meninges from superficial to deep?
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Dura Mater (Strongest), arachnoid, Pia Mater (BBB).
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Where are the 2 functions of the CSF? What happens if formation is more than reabsorbtion?
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Protecctive, circulatory.
Hydrocephalus. |
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Ganglion/Nucleus
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G-PNS
N-CNS |
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Nerve/Tract
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N-PNS
T-CNS |
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Grey Matter/White Matter
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Grey-Unmylinated
White-Mylinated |
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List the parts of the brainstem.
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Medulla Oblingata, pons, midbrain.
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Why are injuries to the medulla oblongata dangerous?
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Reflex center for heart, breathing, blood pressure.
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What are cerebrovascular accidents?
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Strokes
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How do medulla and cortex differ in comp and location?
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Medulla-Deep, white matter
Cortex-Superficial, gray matter |
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What is the arbor vitae?
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Cerebellar medulla
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Differences between sulci, gyri, and fissures?
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Sulci-Shallow groove
Gyri-Elevated ridge Fissure-deeper grooves |
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Parietal
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Sensory
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Frontal
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Motor
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Temportal
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Hearing
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Insula
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Smell
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Occipital
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Vision
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What is the difference between spinal and cranial nerves?
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Cranial-Serve head and neck
Spinal-everywhere else |
