DBB - Exam 1 - Brain/Nervous System

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Sympathetic nervous system has origins at which nerves?

Thoracic and lumbar spinal cord
Parasympathetic nervous system has origins at which nerves?

Cranial nerves and Sacral spinal cord
Sympathetic has long or short preganglionic nerves; long or short postganglionic nerves?

Short preganglionic; long postganglionic
Parasympathetic has long or short preganglionic nerves; long or short postganglionic nerves?

Long preganglionic; short postganglionic
Sympathetic releases _______ to _______ receptors preganglionic; releases _______ to _______ receptors postganglionic.
- ACh to nAChR preganglionic
- NE to adrenergic postganglionic
Parasympathetic releases ______ to ______ receptors preganglionic; releases _____ to ______ receptors postganglionic.
- ACh to nAChR preganglionic
- ACh to mAChR postganglionic
nAChR is ionotropic or metabotropic?

Ionotropic
4 types of glial cells:
- Schwann cells
- Oligodendrocytes
- Microglial cells
- Astrocytes
Absolute refractory period
- The time during which Na channels are closed and cannot be opened
- Prevents the occurrence of another action potential
Relative refractory period
- Hyperpolarizing phase after an action potential (overshoot)
- Makes it more difficult to have another action potential
Amino acid neurotransmitters
- Glutamate
- GABA
- Glycine
Monoamine neurotransmitters
- Dopamine
- Norepinephrine
- Serotonin

Author:	Anonymous
ID:	172194
Card Set:	DBB - Exam 1 - Brain/Nervous System
Updated:	2012-09-20 17:46:10
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