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28 Cards in this Set
- Front
- Back
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Neuron Cell Body |
Main cellular portion of the neuron containing the nucleus and most of the organelles |
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Dendrites |
Processes of the cell body that transmit imulses toward the cell body |
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Myelin Sheath: Made by (2) Sturcture Function |
Made by Oligodendrocytes (CNS) Schwann Cells (PNS) Structure - Sheath covering neuron axon Function - Prevents and insulated the axon |
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Neurolemma (2) |
Made by schwann cells in the PNS
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Sensory Neurons types (2) function |
T - Somatic - Visceral F -Send impulses to the CNS |
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Motor Neurons types? function |
T - Somatic F -Send impulses to skeletal muscles and glands |
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Interneurons Where? Funtion? |
-Found within CNS -Intermediate neuron to integrate sensory and motor funtion |
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Is the efferent section of the Spinal cord Dorsal or Ventral? |
Ventral |
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How many spinal nerve pairs are there? |
31 |
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How are spinal nerve pairs named? |
By the vertebrae they are found at |
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Dorsal Ramus |
Splits into smaller somatic sensory and motor nerves that innervate posteriorly |
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Ventral Ramus |
-Motor and sensory -Innervate muscles and glands in extremities and later/ventral portions of the neck and tronk |
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Autonomic fibres split and merge with the ganglia of the _____________ |
Sympathetic chain |
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How are nerves named? |
Nerves are named based on their destination |
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Main sections of the brain (3) |
-Diencephalon -Brain Stem -Cerebral hemisphere |
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Divisions of the Diencephalon (2) |
-Hypothalamus -Thalamus |
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Divisions of the Brain Stem (3) |
-Midbrain -Pons -Medulla Oblongata |
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How many Ventricles of the brain are there? What specialized structure do they contain? and what does it do? |
-4 -Choroid plexus, which creates CSF |
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What does poor drainage of CSF in infant lead to? |
Hydrocephalus |
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Describe the Medulla (2) |
-Responsible for regulating heart rate, respiration, and vascular control. -Vulnerable to occipital lobe injuries |
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Describe the Pons (2) |
- Bridges the medulla - Contains respiratory centers |
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Describe the midbrain |
-Visuoaditory reflex intgratrion -Balance and equilibrium |
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Cerebellum |
-Coordination -Proprioception -Muscle tone -Posture -Subconcious |
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Hypothalamus |
-ADH, oxytocin production -Releasing factors -Temperature and hunger -ANS-endocrine bridge -Visceral response to emotion -circadian rhythms |
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Thalamus |
-Interprets all sensory information aside from smell and interprets them (aside from pain localization) -Dulls senses during concentration |
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Cerebrum |
-Hemispheres connected by corpus callosum -Folds (gyri) and Grooves (Sulci) increase surface area |
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Sympathetic Nervous System Functions |
-mobility+ -Heart rate+ -Breathing+ -Liver sugar release + -Digestion- -Peripheral vasoconstriction+ |
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Parasympathetic Nervous System Funtions |
-Digestion+ -Waste removal+
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