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15 Cards in this Set

  • Front
  • Back
Peripheral nerves
conduct impulses from efferent/motor neurons to afferent/sensory neurons of the cns.
Somatic nervous system (SNS)
parts of the CNS and PNS that provide sesory and motor innervation to all parts of the body expect the viscera, smooth muscle and glands.
Autonomic nervous System (ANS)
It provides effernt involuntary motor innervation to smooth muscle, the conducting system of the heart and glands. It also provides afferent sensory innervation from the viscera(pain and autonomic reflexes). The ANS has two parts, the sympathetic, and parasympathetic.
Purkinje fiber
Cardiac conducting cells located with in the conductive system of the heart. The frequency of the depolarization of the fibers controles the rate of cardiac contraction.
Somatic afferent fibers
Conduct sensations of pain, temperature, touch and pressure from the body surface.
Visceral afferent fibers
transmit impulses of pain and other sensations from the mucous membranes, glands, and blood vessels.
Somatic efferent fibers
Send impulses from the CNS or ganglia to the skeletal muscles.
Visceral efferent fibers
send involentary impulses from the CNS and ganglia to the visceral components (smooth muscle, cardiac conducting fiber "Purkinje fibers", and glands)
form a communicating and integrating network between the sensory and motor neurons. Approx. 99.9% of all neurons belong to this network.
are the process receptors that receive stimuli from other neurons or the external environment.
The body of a neuron, that contains large amounts of eucromotin in the neucleus and large amounts of ribosomes in the ER, forming nissal bodies and free ribosomes. The body of a neuron has the characteristics fo a protien-producing cell...
Nissal Body
The nissal body of the neural cell corrispondes to stacks of rER that dyes basophilic.
are effector processes that transmit stimuli to other neurons or effector cells.
axon hillock
This is the area of the neural cell body that is free of nissal bodies, golgi, and free ribosomes. It is the distinguishing factor of where the axon begins.
Anterior median Fissure
small arrow... this can be a landmark to determine the anterior spinal cord. It is in the white matter