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Unformatted text preview: on the body's soma. B. A stimulus of high intensity on the body's soma. 100% C. Many neurons functioning at the same time. 0% Student Response D. Both #1 and #3. 0% Score: 0/0.5 0% 7. articular cartilage damage The type of arthritis which begins with damage to articular cartilage from stress or injury is called: Student Response Value Feedback Student Response A. rheumatoid arthritis 0% B. osteoarthritis 100% C. bursitis 0% D. gouty arthritis 0% Score: 0/0.5 8. reative refractory period The relative refractory period occurs during: Student Response Value Feedback A. opening of Na+ gates 0% B. opening of K+ gates 0% C. closing of K+ gates when excess K+ has left the neuron. 100% Student Response D. opening of K+ gates when excess K+ has left the neuron. 0% Score: 0/0.5 9. voltage-gated ion channels Threshold depolarization will result in an action potential when it occurs at: Student Response Value Feedback A. chemically-gated ion channels only 0% B. voltage-gated ion channels only 100% Student Response C. Both chemically-gated and voltage-gated ion channels. D. The receptive region. 0% Score: 0/0.5 10. elastic connective tissue 0% The stroma of the lungs contains _____ which permits its expansion and recoil. Student Response Value Feedback A. areolar connective tissue 0% Student Response B. elastic connective tissue 100% C. fibrous connective tissue 0% D. dense irregular connective tissue 0% Score: 0.5/0.5 11. Binding of the ACh to the post-synaptic receptors. What event causes opening of the chemically-gated Na+ channels? Student Response Value Feedback A. Calcium ions enter the axon 0% B. Calcium ions are pumped back into the sarcoplasmic reticulum. 0% C. Acetylcholine is released into the synaptic cleft by exocytosis. 0% D. Acetylcholine binds to post-synaptic receptors on the sarcolemma. 100% E. Na+ moves across the sarcolemma into the muscle cell. 0% Student Response F. Breakdown of ACh by AChase. 0% G. Opening of the voltage-gated sodium channels. 0% H. Opening of potassium channels. 0% I. Binding of calcium ions to Troponin C. 0% J. Uptake of ATP by the myosin heads. 0% K. Attachment of actin-myosin crossbridges and swiveling of the myosin heads. Score: 0/0.5 0% 12. smooth muscle The type of smooth muscle in which an impulse passes through a large number of cells which subsequently contract in synchrony is: Student Response Value Feedback A. single unit smooth muscle 100% Student Response B. multi-unit smooth muscle 0% C. sphincter muscle 0% Score: 0/0.5 13. Uptake of ATP by myosin heads. Which event is required for detachment of the crossbridges? Student Response Value Feedback A. Calcium ions enter the axon 0% B. Calcium ions are pumped back into the sarcoplasmic reticulum. 0% C. Acetylcholine is released into the synaptic cleft by exocytosis. 0% D. Acetylcholine binds to post-synaptic receptors on the sarcolemma. 0% E. Na+ moves across the sarcolemma into the muscle cell. 0% F. Breakdown of ACh by AChase. 0% G. Opening of the voltage-gated sodium channels. 0% H. O...
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This note was uploaded on 01/29/2013 for the course BIOL 239 taught by Professor Swan during the Fall '12 term at New Mexico.

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