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Your Answer:pia materDura mater (menix) Question 23 / 3 ptsThe _______ fissure separates the right and left cerebral hemispheres.Your Answer:median longitudialMedian longitudinal Question 34 / 4 ptsWhat is the purpose of the blood-brain barrier? Describe its maintenance from a cellularlevel.Your Answer:prevents most particles from entering the central nervous system. It keeps the brainseparated from the spinal cord for blood circulationThe blood-brain barrier is a diffusion barrier which prevents most particles fromentering the central nervous system tissue, keeping the brain and spinal cordseparate from general blood circulation. The blood-brain barrier is formed by therelatively impermeable brain capillaries, due to the glial cells astrocytes.Maintenance of the blood-brain-barrier is important to provide a stable chemicalenvironment for the nervous system. Question 42 / 2 ptsAll the following are functions of the hypothalamusexcept:Maintain homeostasisControls the pituitary gland Links the nervous and endocrine systemsCorrect!Relays sensory impulses to the cerebrum Question 52 / 2 ptsWhat is the largest portion of the brain?CerebellumCorrect!CerebrumCorpus collosumCingulate gyrus Question 62 / 2 ptsThis region of the brain acts to coordinate multiple sources of sensory information.Primary sensory cortexPrimary motor cortex
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