CNS - lecture 1 Flashcards
sagittal
form the side
horizontal
top view
coronal
from the back or front
dorsal
up (towards the peripheral
ventral
down (towards the body)
sulcus
space between folds
gyrus
fold itself
how to name a pathway
location –> destination
cerebrum
thought, langue. memory
diencephalon
hypothalamus and thalamus sensory relay to the cerebral cortex, hunger, thirst, aggression
brain stem
life sustaining processes
cerebellum
memory, balance, (‘little brain”)
dura matter
outer most layer, thick durable, also supports blood vessels
arachnoid matter
middle layer, cushioning, cerebrospinal fluid circulates between the arachnoid and pia
pia matter
thin layer that surrounds brain and spinal cord (inner most layer)
3 meninges
dura, arachnoid, pia
four spinal cord regions
cervical, thoracic, lumber, sacral (C,T,L,S)
dorsal root pathway
sensory info form periphery
ventral root pathway
Carries motor signals to act on muscle
pons
respiration
medulla
cardiac control, respiration control
midbrain
dopaminergic cells that help with motor control
CN1 Olfactory
smell
CN 2 Optic
vision
CN 3 Oculomotor
eye movements
CN 4 Trochlear
eye blink / raising eyelid
CN 5 Trigeminal
sensing and moving parts of the jaw
CN 6 Abducens
specific direction of eye movments
CN 7 Facial
movement of facial muscles
CN 8 Vestibulocochlear
transmits sound form inner ear to Brian (auditory nerve)
CN 9 Glossopharyngeal
tounge throat and glands of the mouth
CN 10 Vagus
heart and lungs
CN 11 Accessory
shoulders and neck
CN 12 Hypoglossal
tongue
thalamus
receive inputs format he external world
hypothalamus
endocrine control, sleep, stress ( 4 F’s) (fighting, fleeing, feeding, and fornication)
topography
spatial distribution of parts within and organ
