Portage Learning BIO 152 module 2 complete solutions

Portage Learning BIO 152 module 2 complete solutions This is the most superficial layer of the brain meninges. Dura mater The ________ fissure separates the cerebrum from the cerebellum transverse Brainpower Read More What is the purpose of the blood-brain barrier? Describe its maintenance from cellular level The blood-brain barrier is a diffusion barrier which prevents most particles form entering the CNS 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 filial 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. Relays sensory impulses to the cerebrum D. What is the largest portion of the brain? A. cerebellum B. Cerebrum C. Corpus collosum D. Cingulate gyrus B. This region of the brain acts to coordinate multiple sources of sensory information. A. Primary sensory cortex B. Primary motor cortex C. Association area D. Precentral gyrus E. Postcentral gyrus C. 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. Wernicke's area C. Occipital lob D. Parietal lobe E. Primary sensory cortex B. 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 through the cerebral hemispheres. The hippocampus acts as a memory center to help with memory storage and retrieval. The involvement of the limbo system explains why emotionally charged events result in our most vivid memories Which statement is false concerning the brainstem? A. The medulla portion of the brainstem continuers with the spinal cord B. The medulla contains reflex centers to regulate vasoconstriction C. the midbrain contains the superior and inferior calliculi D. The midbrain helps to regulate breathing D. The midbrain helps to regulate breathing Which of the following is true concerning the cerebellum? A. The gray matter is internal while the white matter is external B. The cerebellum works to plan body movements by relaying information spinal cord C. The anterior lobe receives information from the body trunk D. The vermis coordinates the trunk and shoulder movements C. which of the following is most likely a symptom of ALS? A. Impaired ability to swallow B. Decreased sensation in the hands C. Shrinkage of cerebral cortex D. increased size of brain ventricles A. Which of the following is true concerning a CVA? A. an ischemic stroke is also known as a "brain bleed" B. A TIA is a form of hemorrhagic stroke C. Stoke survivors never regain any lost function D. A hermorrhagic stoke is due to a broken blood vessel D. A patient is unable to extend his fourth and fifth digits when asked to open his hand. What is most likely the cause? A. CVA in the frontal brain B. Carpal tunnel syndrome C. Ulnar nerve damage D, anterior spinal cord injury C Label the following spinal cord regions in the diagram below Lateral column Gray commisure anterior column anterior/ventral horn ventral root What cranial nerve is highlighted in blue (also indicated by the arrow) in the figure below? A. optic B. oculomotor C. trochlear D. Abducens E. Spinal accessory D Which of the following is true about the trigeminal nerve? A. the mandibular branch receives sensory information from taste buds B. the ophthalmic branch controls eye movement C. the maxillary branch receives information from the upper lip D. The maxillary branch controls the muscles of mastication C What type of nerve is cranial nerve below and what does it control? A. mixed: sensation of digestive tract and regulation of heart rate B. Motor: tongue movement C. Sensory: hearing/balance D. Mixed: facial muscles and taste D Use the figure below to answer the following questions. Answer by writing the alter (A-J) from the figu