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:

Controls visual-spatial skills, emotion and artistic skills.

Provide a supportive scaffolding for neurons.

Involved in sounding out unfamiliar words.

Carries messages to and from the spinal cord and the brain.