K attachment of actin myosin crossbridges and

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: etal muscle cardiac muscle smooth muscle Both 1 and 2 E. Both 2 and 3 A. B. C. D. Score: 11. Value 0% 0% 0% 100% 0% Feedback 0/0.5 substantia nigra 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: 12. Feedback 0.5/0.5 Descending tract A tract with the name vestibulospinal would be: Student Response A. ascending and sensory B. ascending and motor C. descending and sensory 0% 0% 0% D. descending and motor 100% Score: 13. Value Feedback 0/0.5 articular cartilage damage The type of arthritis which begins with damage to articular cartilage from stress or injury is called: Student Response A. rheumatoid arthritis B. osteoarthritis Value 0% 100% C. bursitis D. gouty arthritis 0% 0% Score: 14. Feedback 0.5/0.5 choroid plexus Cerebrospinal fluid is a filtrate from the capillaries of the: Student Response choroid plexus A. Value 100% B. falx cerebri 0% Feedback Student Response C. superior sagittal sinus D. septum pellucidum Score: 15. Value Feedback 0% 0% 0.5/0.5 Action potential An action potential is generated on the sarcolemma by which event of the following: 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 out of 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: 16. Value Feedback 0% 0% 0% 0% 0% 0% 100% 0% 0% 0% 0% 0/0.5 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: 17. Value Feedback 0% 0% 0% 100% 0/0.5 Resting membrane potential Once an action potential is generated, another cannot be generated until the ion gates return to the following configuration: Student Response Value A. Na+ activation gate closed, Na+ inactivation 100% gate open, K+ gate closed. B. Na+ activation gate closed, Na+ inactivation 0% gate closed, K+ gate closed. + + C. Na activation gate open, Na inactivation 0% + gate open, K gate closed. D. Na+ activation gate closed, Na+ inactivation 0% Feedback Student Response gate closed, K+ gate open. Score: 18. Value Feedback Value 0% 100% 0% Feedback 0/0.5 cranial bone ossification Cranial bones start out as a: Student Response A. hyaline cartilage plate B. fibrous connective tissue membrane C. membrane of areolar and dense irr...
View Full Document

Ask a homework question - tutors are online