Suchergebnisse
Suchergebnisse:
Vor 23 Stunden · 1) ion channels on the sarcolemma open and sodium ions enter the muscle fiber. 2) the entry of sodium ions into the muscle fiber depolarizes the sarcolemma locally. 3) acetylcholine is released from vesicles in the motor neuron into the synaptic cleft. 4) an action potential arrives at the axon terminal of a motor neuron.
Vor 23 Stunden · Myasthenia gravis is a disease resulting from an autoimmune attack on the ACh receptors of the motor end plate. Binding of antibodies to the ACh receptors results in generalized muscle weakness that progresses as more ACh receptors are destroyed.
Vor 23 Stunden · Depolarization occurs because __________. more sodium ions diffuse into the cell than potassium ions diffuse out of it. Repolarization occurs because __________. potassium ions continue to diffuse out of the cell after the inactivation gates of the voltage-gated sodium ion channels begin to close.
Vor 23 Stunden · Secretin is released from the duodenum in response to _________. hydrochloric acid in chyme. As long as there is chyme in the duodenum, it will continue to stimulate gastric secretion. False. Hydrochloric acid is formed when __________. hydrogen ions and chloride ions join in the duct of the gastric gland. Gastric secretion begins during the ...
Vor 23 Stunden · a) release of ADP and Pi from the myosin head changes it to its high-energy state. b) when the myosin head is at its low-energy state, it will not detach itself from actin. c) ATP hydrolysis drives cocking of the myosin head. d) the cross-bridge is strengthened by release of Pi from the myosin head. b) when the myosin head is at its low-energy ...
Vor 23 Stunden · Study with Quizlet and memorize flashcards containing terms like What must a driver do if he/she sees an emergency vehicle on the side of the road next to his/her lane of travel with lights flashing and/or sirens on? a) slow down by at least 20mph for 1 mile b) change lanes if safe and possible or, if not possible, slow down to a ...
Vor 23 Stunden · Study with Quizlet and memorize flashcards containing terms like lifestyle choices, unintentional injuries, the ceasing of vital organs to function and more.
