MSS Week 9 Flashcards
Name each joint in the hand their type of joint
1) Interphalangeal joints
2) Metacarpophalangeal joints
3) Carpometacarpal joints 2 - 5
4) Intercarpal joints
5) 1st CMC joint
1) Hinge joints
2) Condyloid joints
3) Plane joints
4) Plane joints
5) Saddle joints
What planes do these movements of fingers occur?
A) Flexion and Extension
B) Abduction and Adduction
A) Sagittal Plane
B) Frontal Plane
What planes do these movements of the thumb occur?
A) Flexion and Extension
B) Abduction and Adduction
A) Frontal Plane
B) Sagittal Plane
Abductor Pollicis Brevis
Origin
Insertion
Innervation
Function
Abductor Pollicis Brevis
Origin: Tubercles of the scaphoid and trapezium
Insertion: The lateral side of the proximal phalanx of the thumb
Innervation: Medial Nerve
Function: Thumb Abduction
Flexor Pollicis Brevis
Origin
Insertion
Innervation
Function
Flexor Pollicis Brevis
Origin: Tubercle of the trapezium
Insertion: The base of the proximal phalanx of the thumb
Innervation: Medial Nerve
Function: Thumb Flexion
Opponens Pollicis
Origin
Insertion
Innervation
Action
Opponens Pollicis
Origin: Tubercle of the trapezium
Insertion: lateral margin of the metacarpal of the thumb
Innervation: Medial Nerve
Action: Thumb Opposition
Adductor Pollicis
Origin
Insertion
Innervation
Action
Adductor Pollicis
Origin: capitate
Insertion: proximal phalanx of the thumb
Innervation: Ulnar Nerve
Action: Thumb Adduction
Abductor Digit Minimi
Origin
Insertion
Innervation
Action
Abductor Digit Minimi
Origin: Pisiform
Insertion: Base of the proximal phalanx of the little finger
Innervation: Ulnar Nerve
Action: Finger Abduction
Flexor Digit Minimi Brevis
Origin
Insertion
Innervation
Action
Flexor Digit Minimi Brevis
Origin: Hook of Hamate
Insertion: base of the proximal phalanx of the little finger
Innervation: Ulnar Nerve
Action: Finger Flexion
Opponens Digiti Minimi
Origin
Insertion
Innervation
Action
Opponens Digiti Minimi
Origin: Hook of Hamate
Insertion: Medial margin of metacarpal 5
Innervation: Ulnar Nerve
Action: Opposition
Lumbricals
Origin
Insertion
Innervation
Action
Lumbricals
Origin: tendon of the flexor digitorum profundus
Insertion: extensor hood
Innervation: 1st and 2nd (medial nerve) 3rd and 4th (ulnar nerve)
Action: Flexion and extension of the fingers
Dorsal Interossei
Origin
Insertion
Innervation
Action
Dorsal Interossei
Origin: lateral and medial surfaces of the metacarpals
Insertion: Extensor hood
Innervation: Ulnar Nerve
Action: Abduction of the fingers
Palmar Interossei
Origin
Insertion
Innervation
Action
Palmar Interossei
Origin: Medial or lateral surface of a metacarpal
Insertion: Extensor Hood
Innervation: Ulnar Nerve
Action: Adduction of the fingers
