Question 4 1 pts A, B, or C? Which muscle would be more affected by joint angular velocity? A B A is more affected than B. B is more affected than A. O A and B are equally affected.

52. The best way to maintain optimum skeletal alignment and reduce risk of joint injury is to... A - maintain strong muscles with a balance between agonist and antagonist groups B - maintain flexibiilty C - avoid cardiovascular activities that increase heart rate A and B A, B, and C

55- For antigravity muscles, firing the medulla leads to: A. Decerebrate Rigidity C. Excitation the flexor muscles Como B. inhibiting the extensor muscles. D. None of the above

Please help me solve this question thanks. Question 2, 3 and 4.

A. How is the knee musculature acting from B to C? B. What muscles are acting knee joint from A to B? C. What motion is occurring at the pelvis from A to B? D. What classification of lever is being demonstrated with this exercise? E. Where is the location of the force application? F. What plane of motion is this exercise occurring in? G. What position is demonstrated at the talocrural joint in frame B?

Match each description to the correct phase of a muscle twitch 73. Sección Ca2+ transported back into the sarcoplasmic reticulum 74. Sarcomeres shorten 75. Depolarization occurs in the T-Tubule 76. Muscle Tension decreases A. Latent period B. Contraction phase C. Relaxation phase

55.

21. What arthrokinematic motion(s) accompanies:? A. Shoulder abduction? ____________? B. Knee extension? ____________?

Question 3 Which of these is an example of isotonic muscle contraction? O Swinging a bar Swimming O Running a race O Picking up sticks O Sitting in class

QUESTION 9 Which of the following is true about skeletal, smooth and cardiac muscle? OA. They are all striated. B. They all have varicosities. C. They are all multinucleated. O D. They all have actin and myosin. W