The Brain Flashcards
avg mass of brain for adult male & female
male: 1600g (3.5 lbs), female: 1450 g (3.2 lbs)
4 regions of the brain include:
cerebral hemispheres (cerebrum), diencephalon, brain stem, cerebellum
paired (left & right) superior parts of the brain
cerebral hemispheres
each of the cerebral hemispheres consist of 3 things:
cortex, white matter, & basal nuclei
includes more than half of the brain’s mass
cerebrum
Cerebrum is made of ridges (___) & grooves (___)
ridges= gyri grooves= sulci
the surface is made of ridges and grooves
cerebrum
____ divide the cerebrum into lobes
fissures (deep grooves)
“executive site” of the nervous system
cerebral cortex
where our conscious mind is found
cerebral cortex
enables us to be aware of ourselves and our sensations
cerebral cortex
enables us to communicate, remember, understand
cerebral cortex
initiates voluntary movements
cerebral cortex
composed of gray matter: neuron cell bodies, dendrites, associated neuroglia & blood vessels
cerebral cortex
neuron cell bodies, dendrites, associated neuroglia & blood vessels
gray matter
modern imaging techniques have shown that specific ___& ___functions are localized in discrete areas within the ___
motor & sensory … within the cortex
higher mental functions, such as ___& ___involve language overlap & are spread over large areas of the ___
memory & language…within the cortex
receives impulses from the body’s sensory receptors
primary somatic sensory area
located in the parietal lobe
primary somatic sensory area
sends impulses to the skeletal muscles
primary motor area
located in the frontal lobe
primary motor area
involved in our ability to speak
broca’s area
4 cerebral areas involved in special senses:
gustatory area (taste), visual area, auditory area, olfactory area
involved in intellectual reasoning & socially acceptable behavior
anterior association area
recognizing faces and patterns
posterior association area
speech area
posterior association area