Lab Practical 2 Flashcards
(126 cards)
Abductor Pollicis Brevis origin and insertion
- origin: flexor retinaculum, trapezium, scaphoid
- insert: base of proximal phalanx of digit 1
Abductor Pollicis Brevis action and nerve supply
- action: abduction of thumb at CMC joint
- nerve: median nerve
Flexor pollicis brevis origin and insertion
- origin: (superficial head) - flexor retinaculum, trapezium
(deep head) - trapezoid, capitate - insert: base of proximal phalanx of digit 1
Flexor pollicis brevis action and nerve supply
- action: flexion of thumb at MCP joint
- nerve: (superficial head) - median nerve
(deep head) - ulnar nerve
Opponens pollicis origin and insertion
- origin: flexor retinaculum, trapezium
- insert: radial shaft of 1st metacarpal
Opponens pollicis action and nerve supply
- action: opposition of thumb at CMC joint
- nerve: median nerve
Adductor pollicis origin and insertion
- origin: (transverse head) - anterior surface of 3rd metacarpal
(oblique head) - bases of 2nd and 3rd metacarpals; capitate, trapezoid and trapezium - insert: Base of proximal phalanx of digit 1
Adductor pollicis action and nerve supply
- action: adduction of thumb at CMC joint
- nerve: ulnar nerve
Abductor digiti minimi origin and insertion
- origin: pisiform
- insert: base of proximal phalanx of digit 5
Abductor digiti minimi action and nerve supply
- action: Abduction of digit 5 at MCP joint
- nerve: ulnar nerve
Flexor digiti minimi origin and insertion
- origin: flexor retinaculum, hook of hamate
- insert: Base of proximal phalanx of digit 5
Flexor digiti minimi action and nerve supply
- action: Flexion of digit 5 at MCP joint
- nerve: ulnar nerve
Opponens digiti minimi origin and insertion
- origin: flexor retinaculum, hook of hamate
- insert: Ulnar border of 5th metacarpal
Opponens digiti minimi action and nerve supply
- action: Opposition of digit 5 at CMC joint
- nerve: ulnar nerve
Lumbricals origin and insertion
- origin: Flexor digitorum profundus tendons
- insert: Radial side of extensor expansion of digits 2-5
Lumbricals action and nerve supply
- action: Flexion of digits 2-5 at MCP joints, Extension of digits 2-5 at PIP and DIP joints
- nerve: Digits 2-3 - median nerve, Digits 4-5- ulnar nerve
Dorsal interossei origin and insertion
- origin: Posterior surfaces of adjacent metacarpals
- insert: Bases of proximal phalanges and extensor expansions of digits 2-4, Radial (lateral) sides of digits 2-3, Ulnar (medial) sides of digits 3-4
Dorsal interossei action and nerve supply
- action: Abduction of digits 2-4 at MCP joints, Flexion of digits 2-4 at MCP joints, Extension of digits 2-4 at PIP and DIP joints
- nerve: ulnar nerve
Palmar interossei origin and insertion
- origin: Palmar surfaces of 2nd, 4th, and 5thmetacarpals
- insert: Bases of proximal phalanges and extensor expansions of digits 2, 4, and 5, Ulnar (medial) side of digit 2, Radial (lateral) side of digits 4-5
Palmar interossei action and nerve supply
- action: Adduction of digits 2, 4 and 5 at MCP joints, Flexion of digits 2, 4 and 5 at MCP joints, Extension of digits 2, 4 and 5 at PIP and DIP joints
- nerve: ulnar nerve
Diaphragm origin and insertion
- origin: Xiphoid process, Lower costal cartilages, Upper lumbar vertebrae, Medial and lateral arcuate ligaments
- insert: central tendon of diaphragm
Diaphragm action and nerve supply
- action: expands thorax during inspiration
- nerve: phrenic nerve
rectus abdominus origin and insertion
- origin: pubic symphysis and crest
- insert: Costal cartilages of ribs 5-7, Xiphoid process
rectus abdominus action and nerve supply
- action: Flexes vertebral column, Compresses abdomen
- nerve: intercostal nerve T7-T12