Bio 253 Hondros Test 1 Review Part 1 With 100% Correct Answers

Reflex Arc {Ans: Receptor, afferent, interneuron, efferent, effector, response}Formed elements {Ans: RBC, WBC, platelets 45%}Facial nerve (CN VII) {Ans: facial expressions, secretion of saliva, tears, and taste}Abducens nerve (CN VI) {Ans: abduction of eye, proprioception}Hypoglossal nerve (CN XII) {Ans: tongue movements, proprioception}Sl valves {Ans: Aortic and pulmonary. prevents blood from flowing back into the ventricals}Trochlear nerve (CN IV) {Ans: eye movement, proprioception}ventricular contract {Ans: sl valves open, av valves close}Veins {Ans: Conduct blood towards the heart (smooth muscles)}Factors that affect heart rate {Ans: cardiac pressoreflexes, carotid sinus, aortic reflex, emotions, exercises, increased temp increases HR, decreased temp decreases HR}Saltatory conduction {Ans: In myelinated fibers, action potentials in the membrane occor only at the nodes of Raniver}Cell body {Ans: Provide protein for maintaining and regenerating nerves}Parietal lobe {Ans: movement, orientation, recognition, perception of stimuli, lanuagae}Layers of the skin {Ans: epidermis, dermis, hypodermis}Arteries {Ans: conduct blood away from the heart}Sense of touch {Ans: tactile (meissner) corpuscle- large hairless skin areas such as nipples, fingertips and lips Lamellar (pacini) corpuscles- found in deep dermis and joint capsules}Hair cells {Ans: found in the organ of corti within