Ameripress 1 Flashcards
(anatomic division) central nervous system:
-brain and spinal cord
(anatomic division) peripheral nervous system:
-everything hanging off (cranial nerves, spinal nerves, ganglia)
(fxnal division) autonomic nervous system:
-internal organs/visceral
(fxnal division) somatic nervous system:
-skin, muscle, bone, joints
forebrain:
aka?
two parts?
- prosenscephalon
- telencephalon & diencephalon
telencephalon includes:
- cerebrum
- underlying basal ganlia
- white matter
diencephalon includes:
- thalamus (involved w/ motor & limbic system
- hypothalamus
- epithalamus
- subthalamus
midbrain:
aka?
includes?
- mesencephalon
- cerebral peduncles
- cerebral aqueduct
- & tectum
hindbrain:
aka?
two parts?
- rhombencephalon
- metencephalon
- & myelencephalon
metencephalon includes:
- pons
- & cerebellum
myelencephalon is:
-medulla
spinal cord segments named for location where:
-roots exit vertebral column
brainstem:
- midbrain
- pons
- medulla
3 layers of connective tissue surround brain and spinal cord (superficial to deep):
- dura
- arachnoid
- pia
fxn of CSF:
-insulates and cushions
epidural fat surround:
-spinal cord
amount of muscle:
- small amount around brain
- a lot around spinal cord
most well protected system=
-most important
gray matter is a:
-group of cell bodies
fibers of gray matter?
-unmyelinated
gray matter: usually dendrites, few __.
-axons
gray matter ganglia:
-PNS (exception: basal ganglia in CNS)
white matter fibers:
-myelinated
myelin gives color
white matter tract is a bundle of:
-fibers
