12. ECA terminal branches

What is the course of the superifical temporal artery?

Through parotid → behind TMJ → crosses zygomatic arch → anterior to auricle → scalp.

What are the major terminal branches of the superificial temporal?

Frontal + parietal.

What are the other main branches of the superficial temporal artery?

• Transverse facial

• parotid

• anterior auricular

• zygomatico-orbital

• middle temporal.

What does the transverse facial artery supply?

Face; runs along parotid duct.

What does the middle temporal artery supply?

Temporalis muscle.

What does the zygomatico-orbital artery do?

Runs along zygomatic arch toward lateral eye.

What are the 3 parts of the maxillary artery?

Mandibular → Pterygoid → Pterygopalatine.

What is the course of the mandibular part of maxillary artery?

starts behind Neck of mandible → sphenomandibular ligament → inferior margin of lateral pterygoid

Where is the pterygoid part?

crosses and is related to the lateral pterygoid muscle.

How does the pterygopalatine part enter the pterygopalatine fossa?

Through pterygomaxillary fissure.

What are the major branches of the mandibular part?

Deep auricular + anterior tympanic + middle meningeal + accessory meningeal + inferior alveolar.

DAM AI

What does the deep auricular artery supply?

External acoustic meatus.

How does the anterior tympanic artery reach the middle ear?

Petrotympanic fissure.

How does the middle meningeal artery enter the skull?

Foramen spinosum.

What does the middle meningeal artery mainly supply?

Dura mater + cranial vault.

What is an important relation of the middle meningeal artery?

Passes through loop formed by auriculotemporal nerve.

How does the inferior alveolar artery enter the mandible?

Mandibular foramen → mandibular canal.

What does the inferior alveolar artery supply?

Lower teeth + gingiva + mylohyoid.

What is the terminal branch of the inferior alveolar artery?

Mental artery → exits mental foramen.

What are the branches of the pterygoid part?

Masseteric + deep temporal + pterygoid + buccal.

What does the masseteric artery supply?

Masseter.

What do the deep temporal arteries supply?

Temporalis.

What do the pterygoid branches supply?

Pterygoid muscles.

What does the buccal artery supply?

Buccinator

What are the major branches of the pterygopalatine part?

• Posterior superior alveolar

• infraorbital → anterior superior alveolar

• descending palatine → lesser and grater palatine arteries

• artery of pterygoid canal

• sphenopalatine.

What does the posterior superior alveolar artery supply?

Premolars + molars.

What does the infraorbital artery supply?

Infraorbital face + anterior upper teeth via anterior superior alveolar artery.

Where does the infraorbital artery travel?

Inferior orbital fissure → infraorbital groove/canal → infraorbital foramen.

What does the anterior superior alveolar artery supply?

Upper incisors + canines.

What does the greater palatine artery supply?

Hard palate.

What do the lesser palatine arteries supply?

Soft palate.

What does the artery of the pterygoid canal supply?

Nasopharynx.

How does the sphenopalatine artery enter the nasal cavity?

Sphenopalatine foramen.

What does the sphenopalatine artery supply?

Posterior nasal cavity + nasal septum.