When playing a contact sport, which injury would one expect to occur more frequently: a dislocated shoulder or a dislocated hip? Why?
What will be an ideal response?
Shoulder dislocations would occur more frequently than hip dislocations because the shoulder is a more mobile joint. Because of its mobility, the shoulder joint is not bound tightly by ligaments or other structures and is, therefore, easier to dislocate when excessive forces are applied. The hip joint, although mobile, is stabilized by four heavy ligaments; bones fit together snugly in the joint. The synovial capsule of the hip joint is larger than the shoulder, and the range of motion is not as great. These factors contribute to the joint being more stable and less easily dislocated.
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A. protein. B. carbohydrate. C. vitamin. D. lipid.
Following a primary immune response, the cells that give rise to memory cells are
A) both B cells and T cells. B) B cells only. C) T cells only. D) neither B cells nor T cells.
________ exists when the immune system does not respond to normal tissues and their antigens.
A) Versatility B) Tolerance C) Memory D) Specificity E) Active immunity
The femur extends from the knee to the foot.
Answer the following statement true (T) or false (F)