Describe the three steps (in detail) and the regions where these steps occur required for a skeletal muscle contraction to occur. Diagram(s) is (are) encouraged.

Which of the following are true regarding length/tension relationships in muscle? O In the sarcomere, the maximal tension occurs at normal resting length O In the whole muscle, maximal passive tension occurs at ½ normal length In the whole muscle, maximal active tension occurs at normal resting length All of the above O Only A and C

Anatomy and physiology explain muscle contraction in several distinct steps starting the release of acetylcholine junction.

Human Anatomy and Physiology Describe in detail the events at the neuromuscular junction and how these events allow for the excitation-contraction coupling event to occur.  Be sure to also include in detail all the steps at the NMJ and the steps of the excitation-contraction coupling event.

Describe an aspect of skeletal muscle metabolism that is of interest to you, explain how it applies cell function. Add the references in APA style.

Explain the meaning of a sarcomere and its parts. Compare the contracted and relaxed sarcomere by writing the mechanisms that lead to contraction and relaxation. Describe the Sliding Filament Model of Muscle Contraction. Discuss the All or None Law of Muscle contraction.

Describe the anatomical organization and basic contraction physiology of smooth muscle and how this allows for this muscle type to contract even when stretched at an extreme length?

Match the following types of contractions: The stimulus above which no stronger contraction can be elicited, because all motor units are firing in the muscle Determined by alternating motor units of a muscle organ even when the muscle is at rest Continued sustained smooth contraction due to rapid stimulation The situation in which contractions become stronger due to stimulation before complete relaxation occurs How a smooth increase in muscle force is produced [Choose] [Choose ] [Choose] [Choose] [Choose]

A&P1 Explain the difference between concentric and eccentric muscle contractions and give an example of an exercise or activity using each.

Describe and explain the sliding filament model of contraction. Be sure to include in your response a comparison between a relaxed and contracted sarcomere of a muscle fiber.