Brain Geography Flashcards
How many lobes does each cerebral hemisphere have?
4
What is the largest portion of the brain?
cerebrum
What is the name of the gyrus that lie anterior to the central sulcus?
precentral gyrus (aka. motor cortex)
The motor cortex (aka. precentral gyrus) is essential for the ability to perform _______ movements.
finely graded
The cerebral cortex is made of _____.
grey matter
What would an injury in Broca’s area result in, and which lobe is it part of?
- Broca’s aphasia: the impairment of expression through speech, writing or signs
- frontal lobe
Whar is the name of the gyrus that lie posterior to the central sulcus?
postcentral gyrus (aka. sensory cortex)
Which lobe is the motor cortex located in?
frontal lobe
The sensory and motor cortex work on the ______ side of the body.
contralateral
Which lobe is the sensory cortex located in?
parietal lobe
The temporal lobe interprets ______ stimuli and also contains the ______ cortex.
auditory / olfactory
What would damage to the temporal lobe result in?
Wernicke’s aphasia: the impairment of comprehension
Where is the cerebellum located?
below the occipital lobes of the cerebrum and posterior to the pons and medulla
What is stereognosis?
the ability to recognize objects by touch
What does the occipital lobe interpret?
visual stimuli
What is the purpose of the basal ganglia?
“background positioning”
- involuntary postural and proximal adjustments in order for fine distal skill to happen
Where is the occipital lobe located?
posterior to the temporal and parietal lobes
What is the tentorium cerebelli?
- strong horizontal fold of dura mater
- attached to falx cerebri
- separates the cerebellum from the occipital and temporal lobes
What is the name for the “hills” lying between the sulci on the cerebral cortex?
gyri (sing. gyrus)
What does the brain stem consist of?
- midbrain (superior)
- pons (intermediate)
- medulla oblongata (inferior)
What is the main function of the brain stem?
vital life (functions of the ANS)
Where is the site for most of the 12 cranial nerve nuclei?
brain stem
What is the falx cerebri?
- veritcal fold of dura mater
- separates the two cerebral hemispheres
What does the cerebellum function as?
centre for coordination of movements and maintenance of balance
Where is the brain stem located?
superior to the spinal cord
The cerebral cortex is divided by shallow grooves called ______ or deeper grooves called ______.
sulci (sing. sulcus) / fissures
