Thursday, 27 July 2017

Picture of hand muscles and tendons

Hand Muscles and Hand Tendons. The image below shows the bones of the hand from the back side. The red lines show where the tendons attach the muscles to the bones.


These thin, strap-like muscles extend from the humerus, ulna and radius and insert into the carpals, metacarpals, and phalanges via long tendons. They run down the forearm and within the carpal tunnel.

The four tendons glide in sheaths along the hand and fingers and insert into the fingertip bone. The muscle belly divides into tendons. The extrinsic muscles are located in the anterior and posterior compartments of the forearm. They control crude movements and produce a forceful grip.


The intrinsic muscles of the hand are located within the hand itself. They are responsible for the fine. Tendons allow fingers to pinch, grasp, grip, and straighten.


When fingers joints straighten, they are being pulled by the extensor tendons.

Extensor tendons connect to muscles in the middle of the forearm, then extend through the wrist and hand to each finger, where they form the extensor hood. The phalanges at the end of each digit are called the distal phalanges. In all of the digits except for the thumb the middle phalanges are found between the proximal and distal phalanges.


Muscles in the forearms flex and extend the phalanges by pulling on long tendons that run through the wrist and hand. The thumb consists of eight muscles : four within the hand and four connecting from the forearm into the bones of the thumb. This allows for the power of gripping and pinching.


Pain at the base of the thumb is the most common symptom that occurs with these activities. Muscle and tendon injuries are often obvious because of local pain and swelling. Initially the injury may be underestimated as patients’ are often reluctant to move local joints when they are sore from injury. Tendons , located at each end of a muscle , attach muscle to bone.


The Achilles tendon is the largest. Some of the muscles , tendons , and ligaments of the hand , as well as those of the forearm that affect hand movement, include: Extensor digitoruThis forearm muscle is responsible for extending. Tendons link the muscle bellies, which provide force, with the joints and bones that get move allowing movements such as opening the hand and making a fist. Muscles acting on the hand can be divided into two groups: extrinsic and intrinsic muscles. The tendons of the wrist and hand are surrounded by a synovial membrane.


Tendonitis of the hand causes severe pain with movement of the hand. Tendons of the hand are thin, flat and white in color.

Inflammation of the tendon sheath in trigger finger. All of the muscles of the lower leg. Some Tendons in the hand and wrist are held in place to make them run in the right direction. At the same time, it must be mobile enough for these actions to occur.


What tendons , joints, muscles , and bones make up the human shoulder? The shoulder isn’t just one bone, it’s actually made up of three different bones and various tendons , ligaments, and muscles. The three bones located in the shoulder are the humerus, the scapula, and. Following are the key differences between tendons and the ligaments: Tendon connects muscles to bone, and are present at the end of skeletal muscles and are made of white fibrous connective tissue, whereas ligaments connect one bone to another bone, so found in joints and are made of yellow fibrous connective tissues.


The skeletal muscles in your body are responsible for moving your joints, thus enabling you to walk, jump, lift, and move in many ways. When a muscle contracts, it pulls on a bone to cause this movement. The structure that transmits the force of the muscle contraction to the bone is called a tendon.

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