Identify this muscle, and describe its attachments and actions
Lumbricals, associated with the tendons of FDP and attach to the extensor expansion, flex MCP and extend IP
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15
Identify the muscle colored green, red, and blue in the figure
Green: Flexor digiti minimi brevis, Red: Abductor digiti minimi,Blue Opponens digiti minimi
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15
Identify the muscles colored yellow and green. Which of these muscles is responsible for abduction, and at which joint does this occur?
Yellow: Dorsal interossei, Green: Palmar interossei; DAB, PAD
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15
Name, classification, articular surface
Radiocarpal(wrist joint); Synovial, biaxial, condyloid; Distal end of radius-Distal radioulnar joint articular disc-Proximal row of carpals (except pisiform)
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15
Identify the muscle colored green in the figure, which joint does this muscle act on, and what movement does it produce at this joint?
Opponens pollicis, Carpometacarpal joint 1: Thumb opposition
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15
Name, classification, and articular surface
Metacarpophalangeal (MCP) joints; Synovial, biaxial, condyloid; Head of metacarpals and Bases of proximal phalanges
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15
Identify the structure highlighted within the orange outline, describe its general function
Flexor retinaculum, prevent bowstringing and protect underlying structure
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15
Identify this structure and describe its function
Extensor aponeurosis/extensor expansion/dorsal digital expansion; ensures simultaneous extension of interphalangeal joints in each finger when releasing grip