D muscle relaxation in the initiating muscle and

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Unformatted text preview: lum. 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. Breakdown of ACh by AChase. G. Opening of the voltage-gated sodium channels. Value 0% 0% 0% 0% 0% 0% 0% Feedback Student Response H. Opening of potassium channels. I. The troponin-tropomyosin complex shifts, exposing the active sites on actin. 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% 100% 0.5/0.5 2. basement membrane All epithelial cells have: Student Response Value A. microvilli B. cilia C. basement membrane D. all of the above 0% 0% 100% 0% E. Answers 1 and 2 only. Feedback 0% Score: 0/0.5 3. 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 0% 100% C. fibrous connective tissue D. dense irregular connective tissue 0% 0% Score: Value Feedback 0.5/0.5 4. Uptake of ATP by myosin heads. Which event is required for detachment of the crossbridges? Student Response A. Calcium ions enter the axon B. Calcium ions are pumped back into the sarcoplasmic reticulum. Value 0% 0% Feedback Student Response 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. Breakdown of ACh by AChase. G. Opening of the voltage-gated sodium channels. H. Opening of potassium channels. I. The troponin-tropomyosin complex shifts, exposing the active sites on actin. 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% 0% 0% 0% 100% 0% 0.5/0.5 5. autonomic ganglion As a result of an autonomic ganglion located _____ the _____ is alble to produce mass activation. Student Response A. close to the effector, parasympathetic division B. close to the effector, sympathetic division C. in a lateral chain or plexus, parasympathetic division D. in a lateral chain or plexus, sympathetic division Score: Value Feedback 0% 0% 0% 100% 0.5/0.5 6. post-tetanic potentiation Repeated use of a particular neural pathway, such as in a rote task, will result in a temporary facilitation of the pathway called: Student Response A. saltatory conduction B. post-tetanic potentiation Value 0% 100% C. temporal summation D. spatial summation 0% 0% Score: 0.5/0.5 7. substantia nigra Feedback The brain region involved when insufficient dopamine production produces Parkinson's disease: Student Response A. thalamus B. hypothalamus C. substantia nigra Value 0% 0% 100% D. basal nuclei E. pons 0% 0% Score: Feedback 0.5/0.5 8. fibrocartilage Which of the following forms the structure of the intervertebral disks? A. fibrocartilage Student Response Value 100% B. elastic cartilage C. hyaline cartilage D. elastic connective tissue 0...
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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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