Dissection manual Flashcards
Action of superficial muscles in p forearm
Extensors
Supinators
3 origins of PT + insertion (1)
Supra condylar ridge
Cfo
Coronoid process
Max convexity of radius
Another origin of FCU
Olecranon
Another origin of FDS
Coronoid process
Branches of brachial artery x 4
Profunda brachii
Humeral nutrient
Ulnar collateral
Muscular branches to BBC
Branches of brachial artery at cubital fossa
Radial > radial recurrent
Ulnar > common interroseous
Course of brachial artery
T major to elbow
Course of cephalic vein
Dp groove to snuffbox
Course of subclavian artery?
Subclavian –> outer border 1st rib)
- -> brachial (anterior arm)
- -> radial/ulnar (elbow)
Does FDP also originate from ulna or radius and insertion
Ulna –> base of terminal phalanx
Do FDS tendons go through carpal tunnel
Yes
Does FPL originate from radius or ulna and insertion
Radius –> base distal thumb
ECRL INSERTIONS and origin
Supra condylar ridge –> 2nd mc base
Floor of cubital fossa
Brachialis
Supinator
How does for abduct wrist?
With radial extensors
How/where does radial nerve leave posterior compartment
Pierces lateral IM SEPTUM at cubital fossa between brachialis and brachii radials
Insertion and origin of COracobrachalis
Coracoid–> mid humeral shaft
Brachialis
Mid humeral shaft –> COranoid process
Anconeus Insertion
Ulna
Insertion of ECRB
3rdmc base
Insertion of EDC
4 tendons in dorsum
Insertion of EDM
Dorsal expansion lil finger
Insertion of FCR
2nd/3rd mc base
Insertion of FCU
Pisiform
Hamate/5mc via ligament
Insertion of FDS
Radial and ulna middle phalanx
Insertion of PL
Palmar alone
AbPL
Ulna to base of thumb mc
EPB
Radius –> proximal thumb phalanx
Supinator
Supinator crest –> proximal radius
Deep muscles of posterior forearm x5
Supinator AbPL EPL EI EPB
Nerve supply of deep anterior forearm muscle
Anterior interroseous branch median nerve
Nerve supply to deep muscles in posterior forearm
Pin EXC anconeus, brachioradialis, ECRL
Biceps
Long head is supraglenoid tubercle
Short head is COracoid
Radial tuberosity
Brachioradialis
Supracondylar ridge –> radial styloid process
ECU
Ulna –> 5th mc base
EPL
Ulna –> terminal thumb phalanx
Triceps
Long head is infraglenoid tubercle Lateral Medial Lips of spiral groove --> olecranon
Origin of posterior forearm muscles
CEO except EI, ECRL, brachioradialis
EI
Ulna –> dorsal expansion of lil finger
Radial nerve relation to triceps
Between medial and lateral heads WITH PROFUNDA BRACHII ARTERY
MC Nerve relation to biceps and brachialis
Deep to biceps and superficial to brachialis
Roof of cubital fossa x5
Bicipital aponeourisis
M/LCNFOREARM
MC vein
Deep fascia of forearm
Triangular borders of cubital fossa
2 humeral epicondyles
PT
Brachioradialis
Deep muscles of anterior forearm
FPL
FDP
PQ
What do the long and lateral head of triceps do
Fuses
Long head stabilises shoulder joint
What happens to mc nerve at cubital fossa
LCNFOREARM
What happens to basilic vein at cubital fossa
Pierces deep fascia
Joins VC of brachial artery to become axiallary vein
What happens to EDC TENDONS?
Split over PIP Into 3
Middle to middle phalanx base
Outers rejoin at distal phalanx
What happens to the radial nerve at cubital fossa
Pin and superficial
What is FDP supplied by
Anterior interroseous
Ulnar
What’s special about FCR tendons
NOT in carpal tunnel
What is cephalic vein used for and why?
Intravenous cannulation and venous access
Large size and constant position
What is the MCubital vein used for
Venepuncture
What lies in anterior arm compartment x8
BBC MEDIAN nerve UlnAr nerve Brachial artery + VC MCNa/f
What lies in posterior compartment of arm x3
Triceps
Radial nerve
PROFUNDA brachii artery
What makes up the snuffbox
3 muscles
2bones
AVN
EPL EPB AbPL scaphoid and trapezium Radial artery Cephalic vein Radial nerve -superficial branch
What makes up the pec girdle x5
Pecs Lat dorsi Serratus anterior Trapezius Rhomboidal
Nerve for muscles in anterior forearm
Median
When do biceps supinate
Flexed elbow
Origin of superficial anterior forearm muscles
CFO
ORigin of deep anterior forearm muscles
Interroseous membrane
Where do lymph nodes in Axilla filter blood from
Upper limb
Breast
Upper abdominal wall
Thoracic wall
Route of bicipital aponeourisis
Tendon to ulna
Where does BP start from
Anterior primary rami
Where does cephalic vein pierce and what does it become
Clavipectoral fascia –> axillary vein
Where does median nerve cross brachial artery
Cubital fossa to lie medial to it
Where does ulnar nerve lie in relation to axillary and brachial artery
Medial
Pierces IM septum
Where is brachial artery in proximal arm
Next to ulnar nerve
Where is the cfo
Anterior aspect of medial epicondyles
Where is median nerve and ulnar/radial artery in relation to PT
Median nerve in between heads
Ulnar deep
Radial over