The triceps tendon is located in the back of the arm. It attaches the triceps brachii muscle to the back of the elbow. Popping sounds in the triceps tendon can be attributed to several causes from minor to severe.

Exercises such as overhead presses help build shoulder strength, but can sometimes lead to pain or discomfort after a workout. Pain in the shoulder after doing overhead presses may not be cause for medical concern, but see your doctor if symptoms worsen or persist.

Pulled muscle is an alternate term for a muscle strain. Either way, it sounds -- and is -- painful. In his book, "Conservative Management of Cervical Spine Syndromes," Donald Murphy, D.C., defines a neck strain as a partial or complete tearing of the muscles and associated tissues supporting the neck.

An ACL injury occurs when you tear your anterior cruciate ligament, located inside your knee joint. ACL injuries commonly occur due to physical activities requiring quick starts and stops such as in basketball, tennis and volleyball. Warming up and stretching prior to your workout is essential to prevent an ACL injury.

Calcium is the most common mineral in the human body. Most of it is stored in bones and some is stored in the blood, assisting with bodily functions such as blood clotting, muscle contraction and communication between nerve cells.

Uric acid is a byproduct of the body breaking down purines in the body. If the body has too much purine, due to natural disposition or from eating purine-rich foods, the level of uric acid in the blood rises.

The knee joint connects the upper leg to the lower leg and is used during many physical activities throughout the day. Overuse, however, makes the knee joint prone to inflammation, which can cause pain in a patient.

A baker's cyst, also called a popliteal cyst, occurs when synovial (joint) fluid forms behind the knee and creates a visible swelling. You can develop a baker's cyst because of arthritis, rheumatoid arthritis, a meniscal cartilage tear or other damage to the knee.

Just in case the insomnia, morning sickness and fatigue weren't enough, pregnancy sometimes also causes tingling, restless feet. Your leg symptoms occur for a number of reasons, all related to your pregnancy hormones and your changing body.

Cartilage acts like a pad or cushion, protecting your bones at the joints during movement. In older adults and younger people who are very physically active, like athletes, cartilage may start to break down and become less cushiony over time.

If you think about everything you use your fingers for, it should give you an indication of just how much pain and stiffness in the knuckle joints can affect your ability to go about day-to-day activities.

The biceps muscle at the front of your upper arm rotates your forearm into a palm-up position and assists with elbow bending and lifting your arm forward. The tendons that attach this muscle to your shoulder and forearm can tear, requiring surgery.