In the absence of a pathologic condition, the body maintains its normal body temperature through:

Skeletal muscle contraction (sliding filament model) is described as follows:

Regulates feelings of hunger and satiety.

It is not safe to drink salt water in place of fresh pure water because body cells ________ in a __________ solution.

Calcitonin is a hormone that is needed for:

One of the following is regulated by negative feedback mechanism:

Except one of the following movements, all others are examples of  isotonic contraction:

Mediates sensation, motor activities, cortical arousal, learning and memory.

Cranial bones are classic examples of membrane bones.  They are called so because:

The chemical buffer system guarantees that the acid-base balance of the body is maintained by: