Brain Flashcards
Cerebrum:
Largest/most prominent structure
interprets sensory impulses controls voluntary motor activity
regulates muscle tone, stores info in memory
develops emotional/intellectual thoughts
Cerebellum:
posterior to the cerebrum
separated from the cerebrum by the transverse fissure
divided into 2 cerebullar hemispheres
regulates motor movements
coordinates voluntary movements such as posture, balance, coordination, and speech, resulting in SMOOTH and balanced MUSCULAR activity.
the 3 parts of the brainstem:
Mesencephalon/Midbrain
Pons
Medulla Oblogata
Define the brainstem:
posterior region hidden in the phalemic region
Cerebral Penducles:
stocks of growth of tissue that connect the cerebrum & midbrain
Cereuncles:
stocks of growth of tissue that connect the cerebellum & midbrain
Mesencephalon/midbrain
where the corpora quadrigemina are located
contains the superior colliculi- reflexs for visual stimuli
inferior colliculi: reflexs for audiotory stimuli
Pons:
elevated mass of tissue on the uentral surface
connect the cerebrum to the cerebellum, medulla, spinal cord
regulates breathing center
Medulla Oblogata:
column of tissue extends posteriorly from the pons & is continous w/ the spinal cord
regulates heart rate, breathing rate, blood vessel diameter
Brainstem:
superior region hidden in the phalemic region
all information relayed from the body to the cerebrum and cerebellum and vice versa must traverse the brainstem
Carpus Callosum:
contians myelinated nerve fiber tracts that connect the 2 CEREBRAL hemispheres
Hypothalamus:
regulates the autonomic N.S. & pitutary gland
control of the bodily functions not consciously directed
controls centers for temp, food/water, sleep, endocrine
hormonal
Mamillary Body:
a region in the hypothalamus
control center for motor reflexes associated w/ EATING
Thalamus:
relay station for sensory impulses going to the cerebral cortex
Pineal Body:
secretes melanin, assists the hypothalmus in regulating sleep/wake cycles
secretes seratonin-happy chemical