Download BIO 669 quiz 2 Correct Questions & Answers 100% Correct!! and more Exams Biology in PDF only on Docsity! BIO 669 quiz 2 Correct Questions & Answers 100% Correct!! When both Na+ and K+ are permeable at the same time, what will happen to the membrane potential? - ANSWERThe cell membrane depolarized Graded potentials are all of the following except: - ANSWERImpulses which travel without diminishing over distance Movement of K+ down its electrochemical gradient will result in what effect on membrane potential? - ANSWERHyperpoloarization The reticular formation is responsible for? - ANSWERWakefulness and vital reflexes Damage to Broca's area is mostly likely to cause: - ANSWERinability/difficulty in forming words (expressive aphasia) A stroke affecting the temporal lobe would most likely affect: - ANSWERPrimary auditory complex (language recognition) Vascular smooth muscle is most impacted by what type of receptor? - ANSWERAlpha 1 The alpha-1 receptor will, upon binding to its ligand, will result in which of the following effects: - ANSWERExcitation and vasoconstriction of vascular smooth muscles The ______ division of the autonomic nervous system helps conserve energy and the bodys resources (rest and digest) and uses _______ as its neurotransmitter(s) - ANSWERParasympathetic; acetylcholine Parasympathetic system stimulation causes all of the following except: - ANSWERIncreasing vasodilation of vascular smooth muscle The effect of sympathetic nervous system activation on metabolism includes all of the following EXCEPT: - ANSWERStorage of glucose as glycogen is enhanced Which of the following is a correct statement regarding the comparison of the autonomic and somatic nervous system? - ANSWERThey both originate in the CNS and end in the PNS, so are part of the peripheral nervous system All of the following are true regarding graded potential EXCEPT: - ANSWERThey all look alike (in amplitude) The peripheral nervous system division that arises from the thoracic and lumbar regions is the: - ANSWERSympathetic Saltatory conduction: - ANSWEROccurs only at the bodes of Ranvier A stroke to the occipital love is most likely to show signs and symptoms affecting the: - AN A stroke affecting the temporal lobe is most likely to show signs and symptoms affecting the: - ANSWERPatient's speech or hearing Ephedra is a sympathomimetic, meaning it has sympathetic nervous system activating effects. As such, it may be assumed to have all of the following side effects EXCEPT - ANSWERDiarrhea and abdominal cramping The parasympathetic nervous system is associated with which of the following: - ANSWERGanglia that are close to the target organ SWERPatient's vision Calcium has an equilibrium potential of 123mV. This means, that under normal resting potential, if Ca++ become permeable the membrane potential would: - ANSWERBecome more positive until the inside of the cell became positive
