A ______________ is a ring of smooth muscle or skeletal muscle that regulates movement in and out of an organ.

What does it mean when you say a muscle tissue is “excitable?”

 ______________ is the name given to a skeletal striated muscle cell.

59. From foot flat to heel off during gait, the ankle is dorsiflexing. This motion is controlled by which of the following?

60. I will enjoy the winter break:

58. Which of the following forces is the primary contributor to joint reaction forces?

26. Why might you choose to limit weight bearing knee flexion exercises (e.g. squats) to less than 90° during the early phases of rehabilitation for a medial meniscus posterior-root repair procedure?

45. As walking speed increases from ½ self selected speed to 1½ self selected speed:

Pictured below are the moment-time (top) and power-time (bottom) curves for the knee during gait. Use the following figure to answer questions 29-30.

51. Low gait speed is a predictor of mortality and cardiovascular disease in older adults.