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Arteries of the Forelimb - Anatomy & Physiology (view source)
Revision as of 17:14, 11 January 2011
, 17:14, 11 January 2011→Axillary Artery
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=='''Axillary Artery'''==
=='''Axillary Artery'''==
===Upper===
The '''axillary a.''' crosses the axillary space and continues distally along the medial aspect of the limb. There are a number of branches of the axillary artery. The '''external thoracic a.''' and the '''lateral thoracic a.''' both have branches to the thoracic wall. The '''subscapular a.''' supplies the muscles of the shoulder running dorsally on the caudal border of the scapula between the teres major and subscapularis muscles. The '''axillary a.''' changes its name to '''brachial a.''' at the point of the teres major tuberosity, running along the medial aspect of the humerus and then along the craniomedial aspect of the elbow and the forearm before changing its name to the '''median a.'''. The tricipital mass is supplied by the '''deep brachial a.''' whilst the '''collateral ulnar a.''' supplies the caudal aspect of the forearm. The '''superficial brachial a.''' supplies the cranial aspect of the forearm running superficially next to the cephalic vein and radial nerve.
The '''axillary a.''' crosses the axillary space and continues distally along the medial aspect of the limb. There are a number of branches of the axillary artery. The '''external thoracic a.''' and the '''lateral thoracic a.''' both have branches to the thoracic wall. The '''subscapular a.''' supplies the muscles of the shoulder running dorsally on the caudal border of the scapula between the teres major and subscapularis muscles. The '''axillary a.''' changes its name to '''brachial a.''' at the point of the teres major tuberosity, running along the medial aspect of the humerus and then along the craniomedial aspect of the elbow and the forearm before changing its name to the '''median a.'''. The tricipital mass is supplied by the '''deep brachial a.''' whilst the '''collateral ulnar a.''' supplies the caudal aspect of the forearm. The '''superficial brachial a.''' supplies the cranial aspect of the forearm running superficially next to the cephalic vein and radial nerve.
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===Lower===
The '''median a.''' runs on the caudomedial aspect with the median nerve deep to the flexor carpi radialis, passes through the carpal canal and forms branches to connect with the interosseous aa. thus forming the arterial arches of the foot. The '''transverse cubital a.''' branches off at the point of the elbow whilst the '''common interosseous a.''' branches off just distal to the elbow. The '''cranial interosseous a.''' runs between the interossoeus space to supply the dorsal muscles of the forearm whilst the '''caudal interosseous a.''' runs to the palmar arches of the proximal metacarpus. The '''ulnar a.''' supplies the digital and carpal flexors.
**** Dorsal common digital aa.
**** Dorsal common digital aa.
**** Superficial palmar arch
**** Superficial palmar arch
***** Palmar commo digital aa.
***** Palmar commo digital aa.
**** Deep palmar arch
**** Deep palmar arch
***** Palmar metacarpal aa.
***** Palmar metacarpal aa.
** '''Radial a.'''
** '''Radial a.'''
[[Category:Musculoskeletal System - Anatomy & Physiology]]
[[Category:Musculoskeletal System - Anatomy & Physiology]]
[[Category:To Do - A&P]]
[[Category:To Do - A&P]]