Major Subdivisions of Brain Flashcards
1
Q
what are the 3 functional divisions?
A
- afferent
- efferent
- interneurons
2
Q
what are the 4 major functional levels?
A
- supratentorial
- posterior fossa
- spinal cord
- peripheral
3
Q
what are the components of the supratentorial region?
A
- cerebral hemispheres
- diencephalon
- central parts of CN1 and CN2
4
Q
Functions of the supratentorial region
A
- thinking
- memory
- intelligence
- olfaction
- vision
- emotions
5
Q
Components of the posterior fossa
A
- brainstem
- cerebellum
- nuclei and roots of CN3 and CN12
6
Q
Functions of posterior fossa
A
- movements of eyes, face, tongue and larynx
- hearing
- balance
- taste
- touch
- pain in face and mouth
7
Q
what are the 3 components of the spinal cord?
A
- spinal cord
- nerve roots
- spinal nerves
8
Q
what are the functions of the spinal cord?
A
- movement and sensation of limbs, torso and perineum
9
Q
what are the components of the periperal system??
A
- all neuromuscular outside of CNS, cranial and peripheral nerves and structures innervated by them
- autonomic ganglia
10
Q
what are the functions of the peripheral system??
A
- movement, sensation and autonomics for segmental territory of individual peripheral nerves
11
Q
tentorium cerebelli
A
“tent” over the cerebellum
12
Q
falx cerebri
A
…
13
Q
cerebrospinal fluid system components
A
- meninges (dura, arachnoid, pia)
- meningeal spaces (epidural, subdural, subarachnoid)
- ventricular system
-CSF
-
14
Q
purpose of CSF system
A
- provides stable environment by cushioning, protecting and buffering
