BIOLOGY 245 Anatomy and Physiology; AP II - Module 2 Exam Graded A (Complete solution) LATEST

Question 1 3 / 3 pts This layer of the meninges is tightly attached to the brain. Your Answer: Pia Mater Pia mater (menix) Question 2 3 / 3 pts The _______ fissure separates the right and left cerebral hemispheres. Your Answer: Median Longitudinal Median longitudinal Question 3 4 / 4 pts What is the purpose of the blood-brain barrier? Describe its maintenance from a cellular level. Your Answer: 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. Question 4 0 / 2 pts All the following are functions of the hypothalamus except: You Answered Regulates sleep Links the nervous and endocrine systems Correct Answer Filters out unimportant sensory information Regulates water balance Question 5 2 / 2 pts This ventricle is located anterior to the cerebellum. Lateral Medial Third Correct! Fourth Question 6 2 / 2 pts This region of the brain acts to coordinate multiple sources of sensory information. Primary sensory cortex Primary motor cortex Correct! Association area Precentral gyrus Postcentral gyrus Question 7 2 / 2 pts A patient is having difficulty producing speech sounds, but other motor movements are normal. Which area of the brain is most likely damaged? Correct! Broca’s area Wernicke’s area Occipital lobe Parietal lobe Primary motor cortex