Match the following muscles with the correct number.External oblique 1.

Explain how a sarcomere is affected when thin filaments slide past thick filaments during muscle contraction.

Match the following muscles with the correct number.Vastus medialis 1.

Match the following muscles with the correct number.Triceps brachii 1.

The loss of potassium ions from the cell during the repolarization stage restores a membrane potential of -90 mV.

Jack has decided to take up jogging as a way to enhance his endurance training.

What is the function of the sarcoplasmic reticulum?

The entry of acetylcholine into a muscle cell through ligand-gated ion channels depolarizes the sarcolemma locally.

Describe the role of calcium in the regulation of the troponin-tropomyosin complex.

Discuss the naming scheme and location of the external oblique, internal oblique, and transversus abdominis muscles.