Internal thoracic artery of Brachial artery is a large vessel, which arises from the ventral face of the brachial artery opposite the first rib. It passes downwards and backwards within the thoracic cavity and terminates into the musculophrenic and anterior abdominal arteries. Collateral branches of Internal thoracic artery At each intercostal space it gives off

A common trunk (Intra-thoracic branch) arises from the dorsal face of the artery close to its origin and soon divides into subcostal, dorsal or costo-cervical, deep or superior cervical and vertebral arteries. Subcostal artery The subcostal artery arises from the dorsal artery or from the common trunk. It passes upwards and backwards along the ventral aspect of

The left brachial artery is a branch of the common brachiocephalic trunk while the right is a branch of the brachiocephalic artery. Each brachial artery after its origin is directed forwards between the layers of the anterior mediastinum and the trachea towards the thoracic inlet. They reach the medial face of the first rib, the

The brain is supplied by the arterial branches of internal maxillary and external carotid artery which form the Circle of Willis and a capillary network the Rete mirabile cerebri formed by the meningeal branches below the base of the brain. RETE MIRABILE CEREBRI Rete mirabile cerebri is a four sided arterial network enclosed in the

EXTERNAL CAROTID ARTERY External carotid artery is the largest of the branches of the common carotid artery. It passes forwards and slightly upwards to the posterior border of the styloid cornu and terminates about below the level of the temporo mandibular articulation into superficial temporal and internal maxillary arteries. Collateral branches of External carotid artery

Terminal branches of External Maxillary artery Terminal branches of External Maxillary artery are malar artery, infraorbital artery, spheno-palatine artery, greater palatine artery- Malar artery Malar artery is one of the terminal branches of the internal maxillary artery. It runs along the medial wall of the orbit passes along the floor of the orbit penetrates the

INTERNAL MAXILLARY ARTERY Internal maxillary artery is the larger of the two terminal branches of the external carotid artery. It passes obliquely forwards and upwards on the lateral aspect of the pharynx and reaches the lower part of the temporal fossa. It runs in company with the maxillary nerve to the maxillary hiatus. Here, it

Superficial temporal artery is the smaller of the two terminal branches of the external carotid artery. At first, Superficial temporal artery passes under cover of the parotid salivary gland, behind the temporomandibular articulation emerges from the deep face of the parotid salivary gland at its anterior part in company with the satellite vein and auriculo-palpebral

External Maxillary artery arises from the common carotid artery, passes downwards and forwards on the lateral wall of the pharynx in company with the hypoglossal nerve and reaches the ramus of the mandible and turns round the posterior border of the horizontal ramus in company with the external maxillary vein and the Stenson’s duct and

Occipital artery is the smallest of the terminal branches of the common carotid artery. It passes upwards beneath the wing of atlas and during its course it gives off- Muscular branches to the ventral straight muscles of the head. Branches to the pharynx Palatine branches to the soft palate. It is then continued as the