Chapter 9: 9.2 Principle Divisions of the Brain
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Ventricle
Chamber in the brain where CSF is found.
Diencephalon
Portion of the brain that lies between the cerebrum and brainstem.
Brainstem
Section of the brain that is inferior to the diencephalon and superior to the spinal cord.
Where does the brainstem connect to the spinal cord?
At the foramen magnum.
What three structures are in the brain stem?
Midbrain, pons and medulla oblongata.
What three vital nuclei are found in the medulla oblongata?
• Cardiac Center – heart rate and strength • Blood pressure • Respiratory Center – breathing rate and depth
What is the “relay station” for nerve signals going to the cerebellum from the cerebrum?
Pons
Where is the substancia nigra that secretes dopamine and is associated with Parkinson’s?
Midbrain
Auditory and Vision reflexes are found in what brainstem structure?
Midbrain
What is the “relay station” for sensory neurons going to the appropriate area of the cerebrum.
Thalamus
Water balance, hunger and thirst, as well as the pituitary hormones are regulated by the _______________.
Hypothalamus
Balance and coordination of skeletal muscles is attributed to what part of the brain.
Cerebellum
Name the white matter that connects the left cerebrum with the right cerebrum.
Corpus callosum
The olfactory bulb is located on the underside of which cerebral lobe.
The olfactory bulb which receives nerve fibers from the nose for the sense of smell and relays these messages to more posterior processing centers.
What lobe of the cerebrum is involved with foresight, decision-making, judgment, and logic?
Frontal
What lobe of the cerebrum is involved with touch, pain, pressure, stretch and temperature?
Parietal
What lobe of the cerebrum is involved with vision?
Occipital
What lobe of the cerebrum is involved with hearing?
Temporal
What lobe of the cerebrum is involved with smell?
Temporal (Frontal is too, but we do not learn that in this class).
What lobe of the cerebrum is involved with the speech muscles?
The frontal lobe
What lobe of the cerebrum is involved with movement of skeletal muscles?
The frontal lobe
What lobe of the cerebrum is involved with movement of the voluntary muscles?
The frontal lobe
What brain structure coordinates activities on the left and right hemispheres of the cerebrum?
Corpus callosum
The frontal, parietal, temporal and occipital are all lobes of the __________________.
cerebrum