The following student answer was awarded either a “1” (partial credit) or a “0” (no credit). Which of the following is a reason the answer did not receive full credit? Select all that apply.  Student Answer: The wavelike, rhythmic, synchronized, contraction of the myocardium is the result of the desmosomes linking autorhythmic cells and myocytes that allows ions and electrical signals to move from once cell to an adjacent cell and thus migrate through the entire heart.

Classify characteristics of skeletal muscle energy metabolism by matching each statement to its correct metabolic pathway for ATP synthesis.

Classify each of the following statements according to whether they are characteristics of skeletal muscle, smooth muscle, or both.

Imagine that a single skeletal muscle fiber is held at a fixed length and is stimulated at various frequencies. Rank the following scenarios according to the amount of tension produced during the resulting isometric contraction/s. 1 = lowest tension, 5 = highest tension

Determine if each listed condition is a characteristic of the sympathetic or parasympathetic division of the nervous system

Complete the following sentences regarding excitation-contraction coupling 1. When an action potential arrives at the axon terminal enters through voltage-setive channels. 2. This triggers the release of from the axon terminal. 3. This diffuses from the axon terminal to the of the skeletal muscle fiber. 4. It then binds to on the motor endplate membrane, increasing their permeability to Na+ and K+ 5. More moves into the fiber at the motor endplate than moves out, depolarizing the membrane and producing a . K

Determine if each listed condition is a characteristic of the somatic or autonomic nervous system

Compartments A and B are separated by a membrane that is permeable to K+K+ but not to Na+Na+ or Cl−Cl-. At time zero, a solution of KCl is poured into compartment A and an equally concentrated solution of NaCl is poured into compartment B. Which would be true once equilibrium is reached?

Place the following events of an action potential into the correct order from 1 to 7 For clarity: EK = equilibrium of K+ PK = Permeability of K+ PN = Permeability of N+

Which of the following is TRUE about the concentration gradient of Na+ in a neuron at rest?