Q.Match the followings and mark the correct option. Column I: A. Sternum; B. Glenoid Cavity; C. Freely movable joint; D. Cartilaginous joint. Column II: i. Synovial fluid; ii. Vertebrae; iii. Pectoral girdle; iv. Flat bones

Think of the different jobs your body's muscles do: you decide to raise your hand, but you never decide to push your breakfast along your gut, and you certainly never order your heart to beat. That everyday difference is exactly what the three types of skeletal-and-other muscle capture. When muscles are sorted by where they sit in the body, three kinds appear — skeletal, visceral and cardiac — and each is built and controlled to match its task.

Skeletal muscle is the muscle attached to the bony parts of the body. Under a microscope it shows a striped or banded pattern, so it is also called striated muscle, and because it obeys the conscious commands of the nervous system it is also called voluntary muscle. This is the muscle chiefly responsible for locomotion and for changes in body posture — the muscle you use whenever you walk, lift or stand up straight.

Visceral muscle lines the inner walls of the hollow internal organs, such as the alimentary canal and the reproductive tract. It shows no striations and looks smooth, so it is called smooth (nonstriated) muscle, and since it is not under conscious control it is called involuntary muscle. Its quiet work includes pushing food along the digestive tract and moving gametes along the genital tract. …