Module 2 Exam- Requires Respondus LockDown Browser
4 / 4 ptsQues!on 3What is the purpose of the blood-brain barrier?Describe its maintenance from a cellular level.Your Answer:To protect the brain by regula"ng which substances canenter. It provides a stable chemical level for the nervoussystem.The blood-brain barrier is a diffusion barrierwhich prevents most par!cles from entering the central nervous system!ssue, keeping the brainand spinal cord separate from general bloodcircula!on. The blood-brain barrier is formed bythe rela!vely impermeable brain capillaries, dueto the glial cells astrocytes. Maintenance of theblood-brain-barrier is important to provide astable chemical environment for the nervoussystem. 2 / 2 ptsQues!on 4All the following are func"ons of the hypothalamusexcept:Maintain homeostasisControls the pituitary glandLinks the nervous and endocrine systemsCorrect!Correct!Relays sensory impulses to the cerebrum 2 / 2 ptsQues!on 5What is the largest por"on of the brain?CerebellumCorrect!Correct!CerebrumCorpus collosumCingulate gyrus 2 / 2 ptsQues!on 6This region of the brain acts to coordinate mul"plesources of sensory informa"on.Primary sensory cortexPrimary motor cortexCorrect!Correct!Associa"on areaPrecentral gyrusPostcentral gyrus
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