Osteoclasts show abnormal function in conditions leading to multiple fractures, as they are responsible for bone resorption.

Obstructive jaundice is associated with increased cholesterol levels due to impaired cholesterol metabolism.

Increase the rate of liver metabolism of local anesthetic: Alpha adrenergic agonists, such as epinephrine, are often added to local anesthetics to enhance their effectiveness. They achieve this by causing vasoconstriction at the injection site, which reduces bleeding and increases the duration of anesthesia. However, they do not directly increase the concentration of LA at the receptor site or alter liver metabolism. Therefore, the correct answer is 2) Increase the concentration of LA at receptor site.

Early movements of TMJ following surgery for TMJ ankylosis is desirable.

The primary action of antidiuretic hormone (ADH) in the kidneys is to increase the permeability of water in the collecting tubules and ducts, promoting water reabsorption.