Muscle Physiology

Draw a muscle showing structures from a whole muscle to contractile proteins.

Draw a sarcomere and label each part. Show how it looks in cross section at different significant parts.

Show how the troponin-tropomyosin complex is involved in actin-myosin binding in detail.

Use a graph to describe the sliding filament theory of muscle contraction. Show sarcomeres at each major point on the graph. Explain why muscle tension changes at each step.

Show the biochemistry of the actin-myosin-ATP process through a single contraction.

Demonstrate through experimental findings the importance of ATP and calcium in muscle contraction. Explain rigor mortis.

Show a neuron-muscular junction and the AP arrival and resulting muscle tension changes. Label the latent period.

Show one contraction-relaxation cycle from the depolarizing AP through to ATP binding the ATPase site on myosin.

Show the sarcoplasmic reticulum (SR). Indicate the dihydropyridine and ryanodine receptors, and calsequestrin in relation to the T-tubule lumen, myoplasm and SR lumen. Show how calcium enters and is sequestered. Indicate how malignant hyperthermia causes the system to malfunction.

Show a muscle twitch and tetanus.

Show a muscle cell, blood, O₂ and CO₂ movement during anaerobic and aerobic metabolism. Indicate which blood measure would indicate anaerobic metabolism.

Show how the pelvis, femur and muscle interact to cause a force necessary for jumping.