External Carotid Artery SCHEME (Side branches + Mnemonics)

Published: 12 February 2020
on channel: Taim Talks Med

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2.9k

Content:
0:00 Introduction
1:42 Mnemonics for the External Carotid
1:57 Superior Thyroid Artery
2:39 Ascending Pharyngeal Artery
3:21 Lingual Artery
4:03 Facial Artery
5:53 Occipital Artery
6:29 Posterior Auricular Artery
7:17 Maxillary Artery
7:46 Maxillary Artery - Temporomandibular Joint
9:49 Maxillary Artery - Infratemporal Fossa
10:27 Maxillary Artery - Pterygopalatine Fossa
13:43 Superficial Temporal Artery

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This video will cover the:
Anatomy of the Common Carotid Artery
Anatomy of the External Carotid artery - Course and Side branches
Blood supply of the Teeth
Blood supply of the Nasal Cavity

Common Carotid Artery:
Right Common Carotid Artery comes from the Aorta
Left Common Carotid Artery comes from the Brachiocephalic trunk
Ascends without sidebranches
Divides at the upper border of the thyroid cartilage
Has Carotid Body

External Carotid Artery:
Mneumonic: Some Anatomists Like Freaking Out Poor Medical Students

Anterior Side branches of External Carotid Artery:
Superior Thyroid artery - muscular branches and Superior Laryngeal Artery
Lingual Arery - Deep Lingual Artery, Dorsal Lingual Artery, Sublingual Artery
Facial Artery
○ Mneumonic for the Facial Artery: TAGS ALL
○ Cervical Branches of facial artery: TAGS
§ Tonsillary Artery
§ Ascending Facial Artery
§ Glandular Artery
§ Submental Artery
○ Facial Branches of facial artery: ALL
§ Angular artery - anestemose with dorsal nasal artery
§ Superior and Inferior Labial Artery
§ Lateral Nasal Artery

Medial Side branches of External Carotid Artery:
Ascending Pharyngeal - Posterior Meningeal artery, Inferior Tympanic artery

Posterior Side Branches of External Carotid Artery:
Occipital artery - Mastoid artery and Sternocleidomastoid artery
Posterior Auricular artery - Auricular branch and stylomastoid artery

Terminal Branches:
Maxillary Artery
○ Temporomandibular Joint
§ Deep auricular artery
§ Anterior tympanic artery
§ Middle meningeal artery - Superior tympanic branch
□ Middle meningeal rupture will lead to an epidural hematoma (bleeding) giving a painful headache
§ Inferior Alveolar Artery - Mental Branch, Dental and Peridental branches, mylohyoid branch
○ Infratemporal Fossa
§ Masseteric artery
§ Anterior and Posterior deep temporal artery
§ Pterygoid branches
§ Buccal artery
○ Pteygopalatine fossa
§ Superior Posterior Alveolar artery
§ Infraorbital artery - Superior Alveolar Artery
§ Descending palatine artery - Lesser palatine and greater palatine artery
§ Sphenopalatine artery
§ Artery of the pterygopalatine canal
Superficial Temporal Artery
○ Frontal Branch - anestemose with the supraorbital artery of ophthalamic artery
○ Parietal Branch - anestemose with the posterior auricular artery and the occipital artery
○ Side Branches of the temporal artery
§ Anterior auricular
§ Transverse facial artery - parotid gland, masseter muscle, skin
§ Middle temporal artery

Blood supply of the teeth
Inferior Alveolar artery
Superior Anterior Alveolar Artery
Superior Posterior Alveolar Aretry

Blood supply of the nasal cavity
Greate palatine artery
Sphenopalatine artery
Anterior and Posterior ethmoidal artery
Superior Labial artery
These arteries make Kisselbach's area or Little's area which is the reason for nosebleed when they rupture in the nasal septum

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