Thoracic vertebrae b sternum c lumbar vertebrae d

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Unformatted text preview: arcolemma into the muscle cell. F. Opening of the chemically-gated sodium channels. G. Opening of the voltage-gated sodium channels. Value 100% 0% H. I. J. K. 0% 0% 0% 0% Score: Opening of potassium channels. Binding of calcium ions to Troponin C. Uptake of ATP by the myosin heads. Attachment of actin-myosin crossbridges and swiveling of the myosin heads. Feedback 0% 0% 0% 0% 0% 0/0.5 19. Exocytosis of ACh into the synaptic cleft. As soon as Ca++ ions enter the axon: Student Response A. Calcium ions enter the axon B. Calcium ions are pumped back into the sarcoplasmic reticulum. C. Acetylcholine is released into the synaptic cleft by exocytosis. D. Acetylcholine binds to post-synaptic receptors on the sarcolemma. E. Na+ moves across the sarcolemma into the muscle cell. F. Opening of the chemically-gated sodium channels. G. Opening of the voltage-gated sodium channels. H. Opening of potassium channels. Value 0% 0% 100% 0% 0% 0% 0% 0% Feedback Student Response I. Binding of calcium ions to Troponin C. J. Uptake of ATP by the myosin heads. K. Attachment of actin-myosin crossbridges and swiveling of the myosin heads. Score: Value Feedback 0% 0% 0% 0.5/0.5 20. meissner's corp which of the following is responsible for crude (non-descriminative) touch? Student Response A. Pacinian corpuscle B. Meissner's corpuscle 0% 100% C. histiocyte D. Langihans cell 0% 0% Score: Value Feedback 0.5/0.5 1. relative refractory period The period during which the trigger region is effectively inhibited but not prevented from generating an action potential is the: Student Response A. absolute refractory period B. relative refractory period 0% 0% C. D. E. F. 0% 0% 0% 100% Score: period of depolarization period of hyperpolarization Both answers 1 and 3 Both answers 2 and 4 Value Feedback 0/0.5 2. multiple sclerosis A demyelination disorder of the CNS which results in impaired and disrupted conduction along axons is: Student Response A. paraplegia B. quadriplegia C. multiple sclerosis Value 0% 0% 100% Feedback Student Response D. Paget's disease Score: Value Feedback 0% 0.5/0.5 3. Corpora quadrigemina Reflexes such as blinking and pupilary reflex is centered in the: Student Response A. visual cortex B. visual association area C. superior colliculi of corpora quadrigemina Value 0% 0% 100% D. the pineal body 0% Score: Feedback 0.5/0.5 4. contractile elements In the structural hierarcy of a muscle, each cell is filled with contractile structures called: Student Response Value A. myofilaments B. myofibrils 0% 100% C. myofibers D. myosin Feedback 0% 0% Score: 0.5/0.5 5. disk structure The intervertebral disks are which type of joint classified according to structure? Student Response A. fibrous B. cartilaginous C. synovial Score: 6. 0/0.5 Value 0% 100% 0% Feedback voltage-gated ion channels Threshold depolarization will result in an action potential when it occurs at: Student Response A. chemically-gated ion channels only B. voltage-gated ion channels only C. Both chemically-gated...
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