APPLIED RADIOLOGICAL ANATOMY

ANATOMY

MUSCULOSKELETAL AND SOFT TISSUE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which level of organization contracts, or shortens, and relaxes to allow our body parts to move?
A
cell
B
tissue
C
organ
D
organ system
Explanation: 

Detailed explanation-1: -Muscle cells are specialized for contraction. Muscles allow for motions such as walking, and they also facilitate bodily processes such as respiration and digestion. The body contains three types of muscle tissue: skeletal muscle, cardiac muscle, and smooth muscle (Figure 19.33).

Detailed explanation-2: -Muscle tissue is composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts. The tissue is highly cellular and is well supplied with blood vessels.

Detailed explanation-3: -Skeletal muscle works in conjunction with the bones of the skeleton to create body movements.

Detailed explanation-4: -Microscopic level-sarcomere and myofibrils. Cell level-myoblasts and myofibers. Tissue level-neuromuscular junctions and fascicles. Organ level-major skeletal muscles of the body.

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