Elbow and forearm: Forearm muscles and bones anatomy - Kenhub
网页2023年11月28日 · Extending from the wrist to the elbow joint is the region of the upper extremity called the forearm (antebrachium). The forearm helps the shoulder and the arm in force application and the precise placement of the hand in space, with the help of the elbow and radioulnar joints.
The superficial posterior forearm muscles: Anatomy - Kenhub
网页2023年10月30日 · The extensor carpi ulnaris muscle is the most medial muscle in the superficial posterior compartment of the forearm. It originates from the lateral epicondyle of humerus via the common extensor tendon.
Arm muscles: Anatomy, attachments, innervation, function - Kenhub
网页2023年11月16日 · Triceps brachii is the prime extensor of the forearm at the elbow joint. Additionally, due to its attachment on the scapula, it can also act as a weak extensor and adductor of the arm at the shoulder joint.
The Extensor Expansion of the Hand - TeachMeAnatomy
网页2024年3月9日 · The extensor expansion (extensor hood) of the hand is a specialised connective tissue structure by which the extensor tendons insert onto the phalanges. It is a complex structure which acts to balance the forces …
Anatomy, Shoulder and Upper Limb, Forearm Muscles
网页2023年6月5日 · The forearm is the section of the upper limb from the elbow to the wrist, whose bony structure is formed by the radius (laterally) and ulna (medially). Two muscular compartments - an anterior (flexor) and posterior (extensor) compartment - contain together twenty muscles that act on the elbow and wrist joints, as well as carpometacarpal ...
Arm Muscle Anatomy and Function - Verywell Health
网页2024年8月20日 · Flexors are muscle groups that bend and move body parts, such as the arm, hand, or fingers closer to the body, while extensors are muscle groups that extend and move body parts away from the body. Upper Arm …
The Muscles of the Arm and Hand: 3D Anatomy Model - Innerbody
网页4 天之前 · On the posterior side of the arm the extensor muscles, such as the extensor carpi ulnaris and extensor digitorum, act as antagonists to the flexor muscles by extending the hand and fingers. The extensor muscles run as long, thin straps from the humerus to the metacarpals and phalanges.
Anatomy, Shoulder and Upper Limb, Wrist Extensor Muscles
网页2023年8月28日 · Extension of the second (index finger), third (long finger), fourth (ring finger), and fifth (small finger) digits occurs via the extensor digitorum communis (EDC) muscles. Independent index finger extension can be carried out by the extensor indicis proprius (EIP) muscle.
Forearm Muscles: Anatomy, Function, and Exercises - WebMD
网页2024年4月18日 · Extrinsic. These muscles help you bend and extend your fingers and thumb. Your forearm muscles are contained in two main compartments: anterior (front) and posterior (rear). These compartments...
Arm Muscles: Anatomy, Function, Diagram, Conditions, Health Tips
网页2018年6月18日 · Overview. Your arms contain many muscles that work together to allow you to perform all sorts of motions and tasks. Each of your arms is composed of your upper arm and forearm. Your upper arm...