Medicine, 25.11.2019 21:31, kkkhomewirk
The phenomena known as "treppe" appears to violate the "all-or-none" law in which the strength by which the myofiber responds to a stimulus is independent of the strength of the stimulus as long as the stimulus strength is greater than the threshold potential. in other words, if the stimulus strength is great enough to open voltage-gated channels for na+ and k+ in the sarcolemma, the myofiber will contract with the same force even if the stimulus strength (voltage) is greater. which of the following explains the seemingly contradictory behavior of a muscle cell demonstrating "treppe" o
(a) with repeated contractile response to a minimum threshold stimulus, the ion channels become more effective in the movement of ions across the plasma membrane
b. with repeated contractile response to a minimum threshold stimulus, the myosin atpase enzymes become more efficient
(c) a substantial increase in the cytoplasmic ca++ concentration since there is insufficient time for ca++ reuptake by the sarcoplasmic reticulum
(d) a and b
(e) a and c
Answers: 3
Medicine, 09.07.2019 19:10, hannahelisabeth19
Sam and joan have been married for 25 years and have three children: max, who is 23; janet, who is 19; and sarah, who is 15. janet has just been diagnosed with a mental illness. describe the objective and subjective burdens each family member may experience. describe the meaning this diagnosis may have to janetβs parents, younger sibling, and older sibling.
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Medicine, 09.07.2019 19:20, wycentliver1859
Anurse is teaching a client who has a new prescription for nitroglycerin patches. the nurse should identify which of the following statements as an indication that the client understands the teaching? a. βi will move the patch to my leg if i get a headache.β b. βi will rotate the application site to avoid skin irritation.β c. βi will apply a new patch if i have chest pain.β d. βi cannot take a sublingual tablet of nitroglycerin after applying the patch.β
Answers: 3
Medicine, 09.07.2019 19:20, jeanbeansmith2p2ofty
Anurse is planning teaching for a client who has asthma about taking montelukast. which of the following should the nurse include about the purpose of this medication? a. relieves acute bronchospasm b. inhibits replication of neutrophils c. controls inflammation in the airways d. activates beta2-receptors in smooth muscle
Answers: 3
The phenomena known as "treppe" appears to violate the "all-or-none" law in which the strength by wh...
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