Anatomy and Cell Biology 2221 Lecture Notes - Lecture 11: Extensor Carpi Ulnaris Muscle, Flexor Carpi Ulnaris Muscle, Extensor Carpi Muscle

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There are 4 main movements at the hand: hand extension, hand flexion, hand abduction (radial deviation, hand adduction (ulnar deviation) You can have flexion or extension at the fingers at each of the joints, mcp joint, pip joint, dip joint. ** works best w/ palms facing inward = beer carrying muscle. Attachments: lat. supracondylar ridge to base of 2nd. Attachments: lat. epicondyle to base of 3rd mc. Movement: hand extension and 2-5th digit extension (all joints) Attachments: lat. epicondyle to extensor expansion of digits 2-5. Attachments: lat. epicondyle to extensor expansion of 5th digit. Note: on the med. side of the post. forearm, you will see the muscle belly of flexor carpi ulnaris from the ant. side. Attachments: lat. epicondyle to base of 5th mc. These muscles are sitting underneath the superficial muscles: Attachments: lat. epicondyle & the supinator crest (ulna) to the proximal radius. ** image to the left is showing the ant. view of supinator and its attachments.

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