D acetylcholine binds to post synaptic receptors on

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Unformatted text preview: PM 00:40:32 Total score: 3.9/10 = 39% Total score adjusted by 0.0 fibrocartilage 1. Maximum possible score: 10 Which of the following forms the structure of the intervertebral disks? Student Response A. fibrocartilage B. elastic cartilage C. hyaline cartilage D. elastic connective tissue Score: 2. Value 100% Feedback 0% 0% 0% 0.5/0.5 Gates at Nodes In myelinated peripheral nerves the voltage gates are located only at the Nodes of Ranvier. Student Response A. True B. False Score: 3. Value 100% Feedback 0% 0.5/0.5 negative feedback In order for a regulatory process to be self controled it must utilize: Student Response Negative feedback A. Value 100% B. Positive feedback C. External control through the nervous system. D. Hormones 0% 0% Score: 4. Feedback 0% 0.5/0.5 Impulse enters the T-Tubules What is the next thing which happens after an impulse enters the T tubules? Student Response A. Calcium ions enter the axon B. Calcium ions enter the sarcoplasm from Value 0% 100% Feedback Student Response 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. 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: 5. Value Feedback 0% 0% 0% 0% 0% 0% 0% 0% 0% 0/0.5 substantia nigra The brain region involved when insufficient dopamine production produces Parkinson's disease: Student Response Value A. thalamus B. C. D. E. 0% 100% 0% 0% Score: 6. Feedback 0% hypothalamus substantia nigra basal nuclei pons 0/0.5 Sharpey's fibers Collagen fibers which run from the fibrous bone covering into the bone itself are called: Student Response Sharpey's fibers A. Value 100% B. red marrow C. yellow marrow D. periosteum 0% 0% 0% Score: 7. Feedback 0.5/0.5 sodium pump The sarcolemma is polarized because more _____ are pumped out than ___ are pumped in. Student Response A. Na+, and K+ B. K+ and Na+ + +2 C. Na and Ca Value 100% 0% 0% D. Ca+2 and Na+ 0% Score: 0/0.5 Feedback 8. elastic connective tissue The stroma of the lungs contains _____ which permits its expansion and recoil. Student Response A. areolar connective tissue B. elastic connective tissue Value 0% 100% C. fibrous connective tissue D. dense irregular connective tissue 0% 0% Score: 9. Feedback 0.5/0.5 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 channel...
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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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