Blood vessels of the head and face

Arteries Carry oxygenated blood away from the heart to cells and tissue Can detect a pulse ‘spurt’ w/ cut or severed Aorta = largest artery of the body

Veins Carry deoxygenated blood from cells and tissues to the heart. More superficial than arteries Closer to the skin ‘bluish’ in color Do not ‘spurt’ when cut

Carotid artery aka Common carotid artery Main blood supply for the Head Neck Face Mouth Brain Eyes

Divisions of the carotid artery Internal Delivers blood to the Brain Eyes External Face Oral cavity

External division Arteries are named after the area of the body they supply blood to. (just like the nerves.) Posterior Superior artery Delivers blood to Max. molars Middle Superior artery Delivers blood to Max. premolars Anterior Superior artery Deliver blood to Max. anterior teeth All are branches off of the Maxillary artery

External division Lingual artery Inferior Alveolar artery Delivers blood to the tongue Inferior Alveolar artery Delivers blood to the mandibular teeth Mental artery Delivers blood to the chin All are branches off of the mandibular artery

Jugular vein 2 main divisions Internal External Drains blood from Brain Eyes External all other tissues of the head and face

Divisions of the jugular vein Superficial veins Facial vein Deep facial vein Retromandibular vein Lingual vein Deep veins Maxillary vein Pterygoid plexus of veins. All veins lead to the Superior vena cava Which drains blood into the R. atrium of the heart.

Conclusion You should be able to answer questions from your patients about head + neck anatomy. Remember, You are the ‘expert’. This concludes the information from Chapter 4 that you will be tested on. Please study and review your material for the quiz. Any questions??????