Student response a increasing b decreasing score

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Unformatted text preview: % 0% 0% Score: Feedback 0.5/0.5 9. 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. I. J. K. 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. 0/0.5 Value 0% 0% 100% 0% 0% 0% 0% 0% 0% 0% 0% Feedback 10. spatial summation If several inputs to a reflex pathway each produce simultaneous sub-threshold depolarizations, it could result in _____ at the receptive region of the receiving neuron. Student Response A. temporal summation B. spatial summation Value 0% 100% C. action potential D. All of the above. E. #1 and #3 only. 0% 0% 0% Score: Feedback 0.5/0.5 12. Epidermis Match descriptions with letters in the diagram of the epidermis. (Click on the word "diagram") The layer missing from thin skin. C The layer which constantly exfoliates. B Its cells contain numerous keratin filaments. D This layer undergoes constant mitosis. E Its cells contain dense keratin granules. A Statement The layer missing from thin skin. The layer which constantly exfoliates. Its cells contain numerous keratin filaments. This layer undergoes constant mitosis. Its cells contain dense keratin granules. Score: 0.5/0.5 13. There are _____ pair of ribs. There are _____ pair of ribs. Response B A D E C Value 20.0% 20.0% 20.0% 20.0% 20.0 % A. 7 B. 5 C. 12 Student Response Value 0% 0% 100% D. 10 0% Score: Feedback 0.5/0.5 14. reative refractory period The relative refractory period occurs during: Student Response A. opening of Na+ gates B. opening of K+ gates + + C. closing of K gates when excess K has left the neuron. D. opening of K+ gates when excess K+ has left the neuron. Score: Value 0% 0% 100% Feedback 0% 0.5/0.5 15. frequency summation High frequency stimuli result from: Student Response Value A. A stimulus which is broadly spread on the 0% body's soma. B. A stimulus of high intensity on the body's soma. 100% C. Many neurons functioning at the same time. D. Both #1 and #3. Score: Feedback 0% 0% 0.5/0.5 19. parenchymal repair When a tissue experiences parenchymal repair the new tissue _____ produce the tissue's orignal function. A. does Student Response Value 100% B. does not 0% Feedback Score: 0.5/0.5 20. synovial sack A sack made of synovial membrane which lies between tendons, ligaments, and nearby bones is called: Student Response A. a bursa B. a retinaculum C. a syndesmosis D. a synchondrosis Score: Value 100% Feedback 0% 0% 0% 0.5/0.5 1. facilitation Prior sub-threshold depolarization of a reflex pathway produces: Student Response A. facilitation B. inhibition C. dive...
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