Fat pad

The fat pad is a mass of closely packed adipocytes or fat cells surrounded by a layer of connective tissue. Fat pads are found in various locations in the human body and serve different functions depending on their location. They are primarily involved in energy storage, insulation, and cushioning of the body against mechanical stress.

Etymology

The term "fat pad" is derived from the Old English fǣtt, meaning "fat, fleshy" and the Middle English pad, meaning "path, track".

Types of Fat Pads

There are several types of fat pads in the human body, each serving a specific function. These include:

• Heel Fat Pad: This fat pad is located in the heel and serves to cushion the foot against impact during walking and running.
• Infrapatellar Fat Pad: Also known as Hoffa's fat pad, it is situated in the knee joint and acts as a cushion to protect the joint from mechanical stress.
• Buccal Fat Pad: This fat pad is found in the cheek and contributes to the roundness of the face.
• Epicardial Fat Pad: This fat pad is located around the heart and serves to protect the heart from mechanical stress.

Functions of Fat Pads

Fat pads serve several important functions in the human body. These include:

• Energy Storage: Fat pads store energy in the form of triglycerides, which can be broken down and used by the body when needed.
• Insulation: Fat pads help to insulate the body and maintain body temperature.
• Cushioning: Fat pads act as cushions to protect the body's organs and tissues from mechanical stress.

Related Terms

• Adipose Tissue: This is the tissue in which fat pads are found. It is composed of adipocytes or fat cells.
• Lipid: This is the type of molecule that is stored in fat pads. Lipids include fats, oils, and waxes.

See Also

• Adipocyte
• Connective Tissue
• Triglyceride