Wrist And Hand Bones Flashcards
Three main groups of bones
Phalanges
Metacarpals
Carapals
How many bones in a hand?
27
How many carpals are there?
8
Name all carpal bones (one row at a time)
Scaphoid
Lunate
Triquetral
Pisiform
Trapezium
Trapezoid
Capitate
Hamate
How do we categorise phalanges in a finger?
Proximal, middle and distal
Classify the radiocarpal joint
Synovial ellipsoid
What movements are available at an ellipsoid joint
Flexion/Extension
Side to side rocking
Name and classify the joint
Radiocarpal Joint
Ellipsoid
Name and classify the joint
Midcarpal joint
Complex saddle
Name and classify the joint
First Carpometacarpal joint
Synovial COMPLEX saddle
bc allows opposition aswell
Name and classify the joint and available movements
*First Carpometacarpal joint
*Synovial saddle
Flexion/Extension
Abduction/Adduction
Opposition
Name and classify the joint
2nd-5th carpometacarpal joint
Synovial plane
Name and classify the joint
Metacarpal phalangeal
Synovial ellipsoid
Name and classify the joint
Interphalangeal joint of thumb and proximal interphalangeal joints
Synovial hinge
Name and classify the joint
Distal inerphalangeal joint
Synovial hinge
Anterior ligaments that stabilise the wrist joint
Palmar radiocarpal ligaments
Palmar ulnocarpal ligaments
Posterior ligaments of the wrist
Dorsal radiocarpal ligaments
Dorsal ulnocarpal ligaments
Radial collateral ligament attachments
From: styloid process of the distal radius
To: scaphoid and trapezium
Ulnocarpal collateral ligament attachments
From: styloid process of ulna
To: Triquetrum and pisiform
Superficial anterior wrist
Flexor Carpi Radialis
Palmaris Longus
Flexor Digitorum Superficialis
Flexor Carpi Ulnaris
Pronator teres
Original of all superficial wrist flexor muscles?
The common flexor tendon on the medial epicondyle of humerus
Pronator teres attachments
From: Common flexor tendon of medial epicondyle of humerus
& medial aspect of coronoid process of ulnar head
To: middle of anterior radius
Pronation muscles?
Pronator teres
Pronator quadratus
Brachioradialis
Supination muscles
Supinator
Biceps brachii
Brachioradialis
Deep flexors (2)
Flexor pollicies longus
Flexor digitorum profundus
Posterior superficial compartment (6)
Brachioradialis
Extensor carpi radialis longus (ECRL)
Extensor carpi radialis brevis (ECRB)
Extensor carpi ulnaris (ECU)
Extensor digitorum (ED)
Extensor digits minimi(EDM)
Posterior Deep compartment (5)
Supinator
Abductor Pollicis Longus (APL)
Extensor Pollicis Longus (EPL)
Extensor Pollicis Brevis (EPB)
Extensor Indicis (EI)
Flexor digitorum superficialis
From: supracondylar ride of medial epicondyle of the humerus and proximal half of anterior surface of radius
To: middle phalanx of digits 1-4
Muscles of the thenar eminence
Abductor Pollicis Brevis (APB)
Flexor Pollicis Brevis (FPB)
Opponens Pollicis (OP)
Adductor Pollicis (AP)
Intermediate muscles of the hand
Lumbricals
Palmar interossei
Dorsal interrossei
Hypothenar eminence
Abductor digiti minimi
Flexor digiti minimi brevis
Opponens digiti minimi
Palmaris brevis
Muscles of the hypothenar eminence are innervated by?
Ulnar nerve
Mucles of the thenar eminence are all innervated by?
Median nerve
Except adductor Pollicis which is ulnar nerve
How to remember deep posterior forearm
Snuff box borders (EPL, EPB ,APL)
Supinator and extensor indicis
