Bones and Joints of the Forearm
This bony landmark is created by the olecranon and the coronoid process.
What is the trochlear notch.
These are the actions of Flexor Carpi Ulnaris.
Wrist flexion
Wrist adduction
Aids in elbow flexion
This bone is the proximal articulation to metacarpal 2.
What is the trapezoid?
The extensor synovial tendon sheaths are divided into how many tunnels?
What is 6?
HINT: know them :)
What is the motor distribution of the lateral pectoral nerve?
What is the pectoralis major?
Attachment 1: anterior aspect of the medial epicondyle
Attachment 2: medial margin of the anterior coronoid process
What is the anterior band of the ulnar collateral ligament?
This is the missing origin of Flexor Digitorum Profundus.
Proximal 1/4 of the ulnar shaft
Interosseous membrane
______________________-
What is the coronoid process.
These two carpal bones make the lateral attachment for the flexor retinaculum.
What is the trapezium and scaphoid?
The hypothenar muscles are innervated by this nerve.
What is the deep branch of the ulnar nerve C8-T1
We are the two arteries that come together to make the superficial and deep palmar arches.
What are the radial and ulnar arteries.
This bony landmark begins at the apex of the olecranon process and ends at the posterior styloid process.
What is the posterior border of the ulna?
Name the innervation of pronator quadratus.
What is the anterior interosseous nerve C5-T1
The joint that includes the scapholunate and lunotriquetral ligaments. (be specific)
What is the intercarpal likes of the proximal row.
I am the origin of the Opponens Pollicis.
What is the
flexor retinaculum
tubercle of the trapezium
The median nerve lies on top of this forearm flexor.
What is the flexor digitorum profundus?
This bony landmark serves as a pulley system for the Extensor Pollicis Longus muscle.
What is Lister's (dorsal) tubercle?
What are the actions of Flexor Digitorum Superficialis? (be specific)
Flexion of the PIP at digits 2-5
Flexion at the MCP of digits 2-5
Wrist flexion
Distally: anterior surfaces of the scaphoid, lunate, capitate, and triquetrum
What are the palmar radiocarpal ligament
Bonus to for the 4 parts:
1. radioscaphocapitate
2. radiolunotriquetral
3. radioscapholunate
4. radiolunate
I am the origin of the adductor pollicis.
Oblique head: capitate and bases of the metacarpals 2 & 3
Transverse head: body of 3rd metacarpal
This is the sensory distribution of the ulnar nerve.
- palmar surface of the medial 1 and 1/2 digits PLUS associated palm and wrist (pink + 4th)
- skin over the dorsal surface of the medial 1 and 1/2 digits (pinky + 4th)
The Volar (anterior) Radioulnar ligament.
Name the 7 muscles of the superficial layer of the posterior compartment of the forearm.
Brachioradialis
Extensor Carpi Radialis Longus
Extensor Carpi Radialis Brevis
Extensor Digitorum
Extensor Digiti Minimi
Extensor Carpi Ulnaris
Anconeus
The carpometacarpal joint has dorsal ligaments that are strong and distinct.
The 2nd MC receives bands from:
The 3rd MC receives bands from:
3rd - trapezoid and capitate
I am the origin and insertion of the palmar interossei
Origin
- shaft of metacarpals 1, 2, 4, & 5 (palmar surface)
Insertion
- base of the proximal phalanx of digits 1, 2, 4, and 5
- extensor hoods of digits 1, 2, 4, and 5
We are the 6 branches of the axillary artery.
What is:
1. superior thoracic artery
2. thoraco-acromial artery
3. lateral thoracic artery
4. subscapular artery
5. anterior circumflex humeral artery
6. posterior circumflex humeral artery