Portage Learning Anatomy & Physiology 2: Module 2 Exam

Portage Learning Anatomy & Physiology 2: Module 2 Exam This layer of the meninges is tightly attached to the brain. Pia mater (menix) The _______ fissure separates the right and left cerebral hemispheres. Median longitudinal What is the purpose of the blood-brain barrier? Describe its maintenance from a cellular level. 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. Maintain homeostasis B. Controls the pituitary gland C. Links the nervous and endocrine systems D. Correct! Relays sensory impulses to the cerebrum What is the largest portion of the brain? A. Cerebellum B. Correct! Cerebrum C. Corpus collosum D. Cingulate gyrus This region of the brain acts to coordinate multiple sources of sensory information. A. Primary sensory cortex B. Primary motor cortex C. Correct! Association area D. Precentral gyrus E. Postcentral gyrus A patient is having difficulty understanding language but is still able to speak fluently. The patient's dermatomes are intact. Which area of the brain is most likely damaged? A. Broca’s area B. Correct! Wernicke’s area C. Occipital lobe D. Parietal lobe E. Primary sensory cortex Describe how memories are stored and retrieved in the brain. Include a specific brain region. Memories are not stored in one specific area within the brain but instead are stored throughout the cerebral hemispheres. The hippocampus acts as a memory center to help with memory storage and retrieval. The involvement of the limbic system explains why emotionally charged events