AN SC 310
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What is the predominant portion of the brain?
What diviodes the brain into 2 central hemispheres?
the longitudinal cerebral fissure
deeper furrows on the surface of the cerebrum
shallow furrows on the surface of the cerebrum
ridges or convulsions on the surface of the cerebrum
what are the 3 principal fissures of the human cerebrum?
- 1. central sulcus (fissure of Rolando)
- 2.lateral cerebral fissure (fissure of sylvius)
- 3. paretooccipital fissure
what are the four lobes?
- 1. frontal lobe
- 2. occipital lobe
- 3. temporal lobe
- 4. parietal lobe
What part of the midbrain is associated with optic tracts?
the superior colliculi (optic lobes)
why is the coliculi important to animals?
they are important analytical centers concerned with brightness and sound discrimination
what does the pineal gland do?
- - thought to be an evolutionary remnant of the third eye that exists in certain reptiles
- - produces melatonin (sleep inducer)
Contains fibres that connect parts of the cerebellum and medulla with the cerebrum
What does the Medulla Oblongata do?
contains grey matter that control the hearth, respiratory system, and vasomotor reactions
What is the interbrain called?
what part of the brain contains the mammillary bodies, infundibulum, and part of the hypophysis?
Hypopthysis is also called this
- - occupies the surface of the precentrial gyrus of the frontal lobe
- - electrical stimulation of this area in a consious human results in movement of specific muscular groups
exerts control over the motor area
functions to localize very precisely those points on the body where sensations of light touch and press originate
assists in determining organ position
Motor Speech Area
exerts control over the muscles of the larynx and tongue that produce speech
recieves impulses from the retina via the thalamus. Distruction of this area causes blindness
responsible for hearing and speech understanding
recognizes varios odors
tumors of this area cause people to experience nonexistant odors or varios kinds, both pleasant and unpleasant
lend mending to what is felt, seen, or heard
Common Integrative Area
the integration of information from the 3 association areas and the olfactory and taste centers is achieved
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