Nervous System Flashcards
1
Q
What are ganglia?
A
- intermediates that translate neural impulse of CNS into comands to target organs
- each has pre and post ganglionic
cell bodies located right around the spinal cord and GI
2
Q
SAME? Acronym?
A
sensory - afferent
motor - eferrent
3
Q
Hindbrain main structures
A
- cerebellum
- medulla and pons (brainstem)
- autonomic function
4
Q
Midbrain main structures
A
- colliculus: superior and inferior (auditory and visual)
- substantia niagra
- homeostatic control
5
Q
Forbrain main structures
A
- limbic system: hippocampus, amygdala, thalamus, hypothalamus
- cerebrum, olfactory bulb, basal ganglia
- Cerebral cortex: occipital (visual), frontal (higher order), parietal (sensory), temporal (language and sound processing)
6
Q
Spinal divisions
A
C1-7, T-12, L/S 1-5
7
Q
Components of the skull
A
dura, meninges, arachnoid, subarach space, pia
8
Q
Pre vs postganglionic neurons
A
- SNS and PNS pre: ACH shorter
- PNS post: ACH longer
- SNS post: Norepi
9
Q
Enteric Nervous System:
A
- second brain
- extension of autonomic, influenced by SNS and PNS
10
Q
Parietal Lobe basic comonents
A
- somatosensory cortex
- postcentral gyrus
11
Q
Vision colliculus and geniculate body:
A
Superior and lateral > occipital lobe
12
Q
Auditory colliculus and geniculate body:
A
Inferior and medial > temproal lobe
13
Q
General structures involved in voluntary motor control:
A
cerebellum, basal ganglia, precentral gyrus
14
Q
Main functions of glial cells
A
- nutrients, structure, insulation, defense
- 3:1 vs neurons
15
Q
Astrocyte
A
- glial subtype
- form BBB, selectively permeable
- transport nutrients
- constant insulin independent, active transport glucose transport to brain in bloodstream
- very demanding for metablic reqs
