![]() ![]() Spinal nerves can be impacted by a variety of medical conditions, resulting in pain, weakness, or decreased sensation. All cranial nerves originate from nuclei in the brain. Their numerical order (1-12) is determined by their skull exit location (rostral to caudal). These nerves are responsible for signaling your muscles to work and to also relay sensations such as touch, pain and temperature. A total of 31 pairs of spinal nerves control motor, sensory, and other functions. Cranial nerves are the 12 nerves of the peripheral nervous system that emerge from the foramina and fissures of the cranium. Three main nerves begin together at the shoulder the radial nerve, the ulnar nerve and the medial nerve. These two tendons are important to understand because they are common locations of tendonitis.Īll of the nerves that travel down the arm pass across the elbow. Most of the muscles that straighten the fingers and wrist come together and attach to the medial epicondyle, or the bump on the inside of your arm just above the elbow. The outside (lateral) bump just above the elbow is called the lateral epicondyle. The muscles in your forearm cross the elbow and attach to the humerus. The important tendons of the elbow are the biceps tendon, which is attached the biceps muscle on the front of your arm, and the triceps tendon, which attaches the triceps muscle on the back of your arm. The muscles of the thigh can be divided into three groups: anterior, medial, and posterior. They take full advantage of the mobility provided by two joints. Complete Step 2 for yourself, your spouse/partner and children who live with you and/or anyone on your same federal income tax return if you file one. Several muscles attach to, and act on, the femur. There are tendons in your elbow that attach muscle to bone. It has an upper extremity, a shaft, and a lower extremity, all of which are full of various structural landmarks. A third ligament, the annular ligament, holds the radial head tight against the ulna. The important ligaments of the elbow are the medial collateral ligament (on the inside of the elbow) and the lateral collateral ligament (on the outside of the elbow.) Together these ligaments provide the main source of stability for the elbow, holding the humerus and the ulna tightly together. The joint capsule is a fluid filled sac that surrounds and lubricates the joint. The bones are held together with ligaments that form the joint capsule. ![]() Cartilage has a rubbery consistency that allows the joints to slide easily against one another and absorb shock. The ends of the bones are covered with cartilage. The elbow is a hinged joint made up of three bones, the humerus, ulna, and radius. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |