EXPH 386 - Quiz 3 Questions Answered Correctly Latest 2025-2026
inorganic phosphate - AnswersDuring the myosin power stroke, the release of what substance
initiates the tightly bound state between actin and the myosin crossbridge?
blood flow is reduced - AnswersWhen performing endurance exercise, how is blood flow
through capillaries affected during a muscle contraction?
I-band - AnswersWhat region of the sarcomere is circled in this image?
slow - AnswersThe Force-Velocity Relationship states that during a concentric muscle
contraction at 95% of 1 repetition maximum (1RM), the velocity of movement will be ___________.
Ryanodine Receptor - AnswersThis component of Intracellular Tubule System acts as the
calcium release channel within the sarcoplasmic reticulum.
false - AnswersTrue or False? Actin filaments shorten as a result of the myosin power stroke.
Acetylcholine - AnswersWhat substance is released from the motor nerve into the synaptic
space in response to an action potential?
I band / A band junction - AnswersCa 2+ is released from the terminal cisternae of the
sarcoplasmic reticulum in close proximity to what sarcomere structure?
desmin - AnswersOf the proteins listed below, which one serves to stabilize the Z-lines of
sarcomeres arranged "in-parallel"?
Fusiform - AnswersIn a _____________ muscle, the muscle fibers run parallel to the muscle's long
axis and taper at the tendons attachment.
inorganic phosphate - AnswersDuring the myosin power stroke, the release of what substance
initiates the tightly bound state between actin and the myosin crossbridge?
blood flow is reduced - AnswersWhen performing endurance exercise, how is blood flow
through capillaries affected during a muscle contraction?
I-band - AnswersWhat region of the sarcomere is circled in this image?
slow - AnswersThe Force-Velocity Relationship states that during a concentric muscle
contraction at 95% of 1 repetition maximum (1RM), the velocity of movement will be ___________.
Ryanodine Receptor - AnswersThis component of Intracellular Tubule System acts as the
calcium release channel within the sarcoplasmic reticulum.
false - AnswersTrue or False? Actin filaments shorten as a result of the myosin power stroke.
Acetylcholine - AnswersWhat substance is released from the motor nerve into the synaptic
space in response to an action potential?
I band / A band junction - AnswersCa 2+ is released from the terminal cisternae of the
sarcoplasmic reticulum in close proximity to what sarcomere structure?
desmin - AnswersOf the proteins listed below, which one serves to stabilize the Z-lines of
sarcomeres arranged "in-parallel"?
Fusiform - AnswersIn a _____________ muscle, the muscle fibers run parallel to the muscle's long
axis and taper at the tendons attachment.
