L4.3 UL vessels Flashcards
1
Q
Subclavian A
A
Subclavian: Origin: Outer border of 1st ribs
2
Q
Axillary A.
A
- Axillary → extends to INF border of teres maj
- Divided by pec minor:
- Before: 1 branch
- Middle: 2 branch
- After: 3 branch
- All supplies the walls of axilla
- Divided by pec minor:
3
Q
Brachial A
A
Brachial (below teres maj) → (branch) Profunda A → ~ back of humerus → supplies triceps
4
Q
Radial A
A
- Radial A (lat side): under brachioradialis, winds backwards at insertion of brachioradialis → through anatomical snuff box → pierces 1st dorsal interosseous → into palm
- Divided into:
- Superior branch
- Completed by superior branch of ulna A → superior palmar arch
- Deep branch
- Deep palmar arch → completed by deep palmar branch of ulna A
- Btw Carpal bones & interossei
- Gives series of deep MC A
- Deep palmar arch → completed by deep palmar branch of ulna A
- Superior branch
- Divided into:
5
Q
Ulna A
A
- Ulna A (med) – under flexor carpi ulnaris
- Gives branch off around 1cm from origin
- Common interosseous A (deep btw bones)
- ANT of interosseous membrane – innervate deep muscles
- POS of interosseous membrane – muscles of POS compartment of forearm
- Common interosseous A (deep btw bones)
- Superficial to flexor retinaculum → enters palm ∴exposed to laceration
- Branches into
- Superficial (curves laterally) → Common palmar digital A → Proper digital A (one for each side of finger)
- Deep
- Gives branch off around 1cm from origin
6
Q
Deep Veins
A
- Follows A
- Ulna & radial V have venae comitantes (at least to elbow joint level)
7
Q
Superficial Veins
A
- Begins at dorsum of limbs → Dorsal venous arch in palm
-
Cephalic Vein: (LAT)
- ~ radial border of forearm → in front of elbow (ANT) → Lat to biceps → runs into delto-pectoral groove → clavipectoral fascia → goes deep to join the axillary V
- *Gives off median cubital V (at elbow)*
- ~ radial border of forearm → in front of elbow (ANT) → Lat to biceps → runs into delto-pectoral groove → clavipectoral fascia → goes deep to join the axillary V
-
Basilic Vein: (MED)
- From med of arch → ANT forearm (MED) → half up MED biceps → goes deep → joins brachial V → joins axillary
8
Q
Lymphs nodes
A
- All UL drains to axillary lymph nodes (UQ of chest wall also drains there)
- Deep: follows major A
- Sup: drains sup structures → follows superficial V
- Pectoral (ANT) axillary
- Subscapular (POS) axillary
- Humeral (LAT) axillary
- All drain to central axillary → into apical axillary