SOLUTION Muscles of the upper limb first year medicine Biology Diagrams Learn about the muscles of the upper limb, including shoulder, arm, forearm, and hand muscles. See the names, origins, insertions, functions, innervations, and arteries of each muscle group.
Learn about the muscles, bones, blood supply and nerves of the shoulder, arm, forearm and hand with 3D models and videos. Explore the pectoral girdle, upper arm, elbow, wrist and hand anatomy in detail.
Upper limb muscles and movements: Anatomy Biology Diagrams
The upper limb comprises many muscles which are organized into anatomical compartments. These muscles act on the various joints of the hand, arm, and shoulder, maintaining tone, providing stability and allowing precise fluid movement. The upper limb (upper extremity) is truly a complex part of human anatomy. It is best studied broken down into its components: regions, joints, muscles, nerves, and blood vessels. By looking at all of the upper limbs components separately we can appreciate and compartmentalize the information, then later view the upper limb as a whole and understand how all of its parts work in unison. The hand is a very mobile part of the upper limb, and we perform very specialised tasks with it every day, key adaptations can be seen in the specialised structures of the hand. In this section, learn more about the upper limb: Its bones, muscles, nerves, joints, blood vessels and lymphatics, anatomical areas, and structures found in the hand.
Flexion (upper limb forwards past chest): Produced by the biceps brachii (both heads), pectoralis major, anterior deltoid, and corocobrachialis. Abduction (upper limb away from trunk, spreading arms wide): Produced by the supraspinatus and deltoid. Past 90 degrees, the scapula needs to be rotated by the trapezius and serratus anterior to
Muscles of the Upper Limb Biology Diagrams
Learn about the regions and structures of the upper limb, from the shoulder to the hand, with diagrams, quizzes and videos. Find out the origins, insertions, innervation and functions of the bones, joints, muscles and nerves of the upper extremity. large V-shaped muscle on upper back origin: external occipital protuberance; superior nuchal line; spinous processes of C7-T12 insertion: clavicle; helps with forced inhalation when upper limb is fixed. pectoralis major. major chest muscle; adducts humerus medially; helps with forced inhalation when upper limb is fixed (interbicular groove)
