Flashcards in Nervous System 3- Brain and Brain Stem Deck (40):
what does gray matter consist of?
the pre central and post central gyri are separated by
what is the central sulcus
separating the parietal lobe from the frontal lobe and the primary motor cortex from the primary sensory cortex
primary motor cortex has a ____ organization
Cerebral Hemispheres/ Cerebral Cortex
frontal, parietal, temporal,
occipital, insula lobes
caudate nucleus, putamen,
globus pallidus, substantia
nigra and subthalamic
thalamus , hypothalamus
midbrain, pons, medulla
pre central gyrus
post central gyrus
– Primary Motor cortex, conscious control of skeletal muscles
– Premotor- planning movement
– Prefrontal - reasoning, planning, judgement, emotions and personality
Primary sensory cortex, touch, pressure,
temp, pain, vibration, orientation, recognition
True or False
The Parietal Cortex is responsible for taste
auditory and olfactory, speech/language, (receptive), memory, emotions
visceral sensation and control taste
What are the 3 phases of voluntary movement?
1) Identification and localization of a target
2) Plan of action
What happens in " Identification and localization of a target"
specific sensory areas relay info to POSTERIOR PARIETAL LOBE
What happens in "plans of action"
specific area in FRONTAL LOBE (premotor areas) plans movement
What is the role and function of the basal ganglia?
creates a basis for movement control-regulates level of activity in motor cortex
; also non-motor functions
– cognitive, limbic (emotions)
What are some basal ganglia disorders?
Parkinson's disease (motor cortex is understimulated)
Huntingtons's disease (motor cortex is over stimulated )
overstimulated moto cortex causes death to what
motor control function such as fine tuning, and timing of voluntary movements rapid motor adjustments for balance and equilibrium
you were playing badminton and someone hits you in the head with a racquet right on the cerebellum. It damages your cerebellum. What is going to happen
Impaired coordination, you cant hit the birdie.
Impaired balance, you cant stand up to hit a birdie.
But you can still feel the pain when you get hit by a birdie. And you still have your muscle strength
Thalamas (relay station): What is filtered in the thalamus?
sensory info being directly transmitted to the cortex
Two thalami are separated by _____ ventricle
Thalamus is connected by ____
simple definition of thalamus function
relay of processing centre for sensory info
Hypothalamus link to ____
link to pituitary gland-primary link to endocrine system and autonomic
Hypothalamus controls ____
Controlling emotion, autonomic functions and hormone production
Pons (bridge) connect ___to ____
connects brain stem to cerebellum
in the midbrain
-process visual and auditory data
-generation of reflexive somatic motor response
-maintenance of consciousness
-relay sensory info to cerebellum and thalamus
-subconscious somatic and visceral motor centres
medulla oblongata function
relay sensory info to thalamus and other portions of brain stem,
regulation of visceral functions (heart, lungs, digestion, )
If stroke is in the right side of the cortex, it affects ___ side of the body
an ascending pathway carries
sensory info to the central nervous system
A nerve pathway that goes down the spinal cord and allows the brain to control movement of the body below the head
myelinated axons with reverse organization of spinal cord