Portage Learning Biod152 Module 2 Exam
PORTAGE LEARNING BIOD152 MODULE 2 EXAM This Layer of the meninges is tightly attached to the brain - CORRECT ANSWERS-Pia Mater (Menix) The ______ fissure separates the cerebrum from the cerebellum. - CORRECT ANSWERS-Transverse What is the purpose of the blood-brain barrier? Describe its maintenance from a cellular level. - CORRECT ANSWERS-The blood-brain barrier is a diffusion barrier which prevents most particles from entering the central nervous system tissue, keeping the brain and spinal cord separate from general blood circulation. The blood-brain barrier is formed by the relatively impermeable brain capillaries, due to the glial cells astrocytes. Maintenance of the blood-brain-barrier is important to provide a stable chemical environment for the nervous system. All the following are functions of the hypothalamus except: A. Regulates sleep B. Links the nervous and endocrine systems C. Filters out unimportant sensory information D. Regulates water balance - CORRECT ANSWERS-C. Filters out unimportant sensory information What is the largest portion of the brain? A. Cerebellum B. Cerebrum C. Corpus collosum D. Cingulate gyrus - CORRECT ANSWERS-B. Cerebrum This region of the brain acts to coordinate multiple sources of sensory information. A. Primary sensory cortex B. Primary motor cortex C. Association area
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