FSMTB Updated MBLEx Exam Questions and Answers by gabrielle

All aspects of the integumentary system are affected by aging. These changes result in thinning of the skin layers, fewer active hair follicles, leading to thin, sparse hair and sebaceous activity, and reduced blood supply. There is also dryness due to reduced sweat.

When the body is exposed to prolonged heat, more blood is shunted to superficial veins in order to lower body temperature. This results in decreased venous return to the heart. The resulting lowered cardiac output causes less oxygenated blood to reach the brain, causing dizziness and fainting.

The anatomical term “linea” refers to a line or long ridge, such as the attachment site of the hamstrings along the linea aspera on the posterior aspect of the femur.

Stretch reflex or myotatic reflex is an automatic muscle contraction in response to a stretching of muscle fibers. In this case, during the event of losing balance, muscles are stretched and triggered to automatically contract as a means of regaining balance.