Wrist and Palmar Hand POINA Flashcards
Flexor Digitorum Superficialis Purposeful Action
Brush teeth, comb hair, carrying briefcase (functional grasp and pinch)
Flexor Digitorum Superficialis Main Action
-Flex middle phalanges at proximal IP joints at medial 4 digits (stronger)
-Flexes proximal phalanges at MCP joints
Flexor Digitorum Superficialis Proximal Attachment
-Humero-ulnar head: medial epicondyle (common flexor origin), coronoid process
-Radial head: superior radius
Flexor Digitorum Superficialis Distal Attachment
Shafts of middle phalanges of medial four digits
Flexor Digitorum Superficialis Innervation
Median (C7-T1)
Flexor Digitorum Profundus Purposeful Action
Playing racket sports, drawing and writing (functional grasp and pinch)
Flexor Digitorum Profundus Main Action
-Flex medial 4 fingers (MCP, PIP, DIP)
-Assist to flex wrist (radiocarpal joint)
Flexor Digitorum Profundus Proximal Attachment
Proximal ulna and interosseous membrane
Flexor Digitorum Profundus Distal Attachment
-Medial: base of distal phalanges of digits 4-5
-Lateral: base of distal phalanges of digits 2-3
Flexor Digitorum Profundus Innervation
-2-3: Median (AIN, C8-T1)
-4-5: Ulnar (C8-T1)
Flexor Pollicis Longus Purposeful Action
Texting, sewing, beadwork (tip pinch)
Flexor Pollicis Longus Main Action
Flex phalanges of 1st digit (thumb)
Flexor Pollicis Longus Proximal Attachment
Anterior radius and adjacent interosseous membrane
Flexor Pollicis Longus Distal Attachment
Base of distal phalanx of thumb
Flexor Pollicis Longus Innervation
Median (AIN, C8-T1)
Flexor Pollicis Brevis Purposeful Action
Writing, beadwork, putting change in a vending machine (functional grip)
Flexor Pollicis Brevis Main Action
-Thumb flexion (CMC, MCP joints)
-Assists with thumb opposition
Flexor Pollicis Brevis Proximal Attachment
Flexor retinaculum, tubercles of scaphoid and trapezium
Flexor Pollicis Brevis Distal Attachment
Base of proximal phalanx
Flexor Pollicis Brevis Innervation
Median nerve (recurrent branch, C8-T1)
Abductor Pollicis Brevis Purposeful Action
Texting, hitting space bar when typing
Flexor Pollicis Brevis Main Action
-Abduct thumb (CMC and MCP joint)
-Assist in thumb opposition
Flexor Pollicis Brevis Proximal Attachment
Flexor retinaculum and tubercles of scaphoid and trapezium
Flexor Pollicis Brevis Distal Attachment
Base of proximal phalanx
Flexor Pollicis Brevis Innervation
Median nerve (recurrent, C8-T1)
Opponens Pollicis Purposeful Action
Grasping spherical objects