PORTAGE LEARNING BIOD 152 MODULE 2 EXAM QUESTIONS AND ANSWERS|GRADED A+|100% CORRECT

PORTAGE LEARNING BIOD 152 MODULE 2
EXAM QUESTIONS AND ANSWERS|GRADED
A+|100% CORRECT
This Layer of the meninges is tightly attached to the brain - ANSWER-
B B B B B B B B B B B B Pia Mater (Menix)
B B




The ______ fissure separates the cerebrum from the cerebellum. - ANSWER-
B B B B B B B B B B Transverse



What is the purpose of the blood-
B B B B B B



brain barrier? Describe its maintenance from a cellular level. - ANSWER-
B B The blood- B B B B B B B B B



brain barrier is a diffusion barrier which prevents most particles from entering the central ner
B B B B B B B B B B B B B B



vous system tissue, keeping the brain and spinal cord separate from general blood circulation.
B B B B B B B B B B B B B B



The blood-B



brain barrier is formed by the relatively impermeable brain capillaries, due to the glial cells ast
B B B B B B B B B B B B B B B



rocytes. Maintenance of the blood-brain-
B B B B



barrier is important to provide a stable chemical environment for the nervous system.
B B B B B B B B B B B B




All the following are functions of the hypothalamus except:
B B B B B B B B




A. Regulates sleep
B B




B. Links the nervous and endocrine systems
B B B B B B




C. Filters out unimportant sensory information
B B B B B




D. Regulates water balance - ANSWER-
B B B B B C. Filters out unimportant sensory information
B B B B B




What is the largest portion of the brain?
B B B B B B B




A. Cerebellum
B




B. Cerebrum
B




C. Corpus collosum
B B




D. Cingulate gyrus - ANSWER-
B B B B B. Cerebrum
B




This region of the brain acts to coordinate multiple sources of sensory information.
B B B B B B B B B B B B

, A. Primary sensory cortex
B B B




B. Primary motor cortex
B B B




C. Association area
B B




D. Precentral gyrus
B B




E. Postcentral gyrus - ANSWER-
B B B B C. Association Area
B B




A patient is having difficulty producing speech sounds, but other motor movements are norm
B B B B B B B B B B B B B



al. Which area of the brain is most likely damaged?
B B B B B B B B B




A. Broca's area
B B




B. Wernicke's area
B B




C. Occipital lobe
B B




D. Parietal lobe
B B




E. Primary motor cortex - ANSWER-
B B B B B A. Brocas Area
B B




What is muscle tone and how is it maintained? - ANSWER-
B B B B B B B B B B



Muscle tone is the degree at which muscles remain partially contracted while at rest. M
B B B B B B B B B B B B B B



uscle tone is continuously monitored and maintained by the cerebellum to keep bones and joi
B B B B B B B B B B B B B B



nts in place.B B




Which statement is false concerning the brainstem?
B B B B B B




A. The midbrain portion of the brainstem is continuous with the spinal cord.
B B B B B B B B B B B B




B. The pons helps to regulate breathing.
B B B B B B




C. The midbrain contains the superior and inferior colliculi.
B B B B B B B B




D. The medulla contains reflex centers to regulate vasoconstriction - ANSWER-
B B B B B B B B B B



A. The midbrain portion of the brainstem is continuous with the spinal cord
B B B B B B B B B B B B




Which of the following is true concerning the cerebellum?
B B B B B B B B




A. The gray matter is internal while the white mater is external.
B B B B B B B B B B B