#1
Which neurotransmitter is primarily responsible for muscle contraction?
#2
What is the functional unit of a muscle fiber called?
#3
Which part of the nervous system controls voluntary muscle movements?
#4
What is the process by which a muscle increases in size due to repeated use?
#5
What is the term for the smallest functional unit of a muscle contraction?
#6
Which of the following is NOT a type of muscle tissue?
#7
During muscle contraction, what happens to the sarcomere?
#8
What is the name of the specialized structure where a motor neuron meets a muscle fiber?
#9
Which enzyme breaks down acetylcholine to terminate its action at the neuromuscular junction?
#10
Which type of muscle fibers are primarily responsible for prolonged, endurance-based activities?
#11
Which ion is primarily responsible for initiating muscle contraction?
#12
What is the main function of the sarcoplasmic reticulum in muscle cells?
#13
Which protein covers the active sites on actin molecules and prevents myosin from binding during muscle relaxation?
#14
What is the name of the enzyme that catalyzes the conversion of ATP to ADP and inorganic phosphate, releasing energy for muscle contraction?
#15