BIO 235 Exam 4 Questions and Answers 100% Pass

BIO 235 Exam 4 Questions and Answers 100% Pass Functions of the nervous system? - Directing voluntary movement Seat of consciousness, personality, learning & memory Regulates homeostasis along with the Endocrine System: Respiratory rate Blood pressure Body temperature Sleep/wake cycle Blood pH What can be found within the central nervous system? - Brain & Spinal Cord 2 100% Pass Guarantee Katelyn Whitman, All Rights What can be found within the peripheral nervous system? - Cranial nerves and the nerves in the body outside of the brain and spinal cord. How many cranial and spinal nerves are present within the human? - There are 12 pairs of cranial nerves There are 31 pairs of spinal nerves. What are the three main functional units of a neuron. - Receptive Region - Dendrites & Cell Body Conducting Region - Axon Secretory Region - Axon Terminal Slow Axonal Transport vs. Fast Axonal Transport - Slow Axonal Transport - Transports substances from cell body through axon. Rate: 1-3 mm/day Fast Axonal Transport - Requires MOTOR PROTEINS and consumes ATP. Rate: 200-400mm/day Astrocyte - CNS 3 100% Pass Guarantee Katelyn Whitman, All Rights Large, star shaped cells Anchor both neurons and blood vessels Transport nutrients and gasses REPAIR FORMATION OF BLOOD BRAIN BARRIER Oligodendrocyte - CNS Myelin Sheath Radiating processes with flatend Cerebrum function? - Performs high mental functions Interpreted sensory stimuli Plans and initiates movement RESPONSIBLE FOR HIGHER MENTAL FUNCTIONS Thalamus - RECIEVE afferent fibers EXCLUDING SENSE OF SMELL Controls which input should continue to cerebral cortex 4 100% Pass Guarantee Katelyn Whitman, All Rights Cerebellum - coordinates movement and balance Hippocampus - memory Hypothalamus - brain region controlling the pituitary gland Primary motor cortex - voluntary movement Primary sensory cortex - regions of the