Blood Supply To The Head And Neck Flashcards
What are the great vessels leaving the heart
Superior/inferior vena cava
Arch of aorta
Pulmonary artery
What are the branches form the arch of the aorta
Bracheocephalic trunk
Left common carotid
Left subclavian artery
What are the branches off of the bracheoceohalic trunk
Right common carotid artery
Right subclavian artery
What are the division of the subclavian artery
In relation to scalenus anterior muscle
Medial - 1
Posterior - 2
Lateral - 3 on edge of first rib
What are the 3 branches off of the 1st branch of the subclavian artery medial to the scalenus anterior muscle k
Internal thoracic artery which will give off branches to the intercostal muscles
Vertebral artery which passes through neck and at C6 level will pass into transverse foraminae to get into cranial cav
Thyrocervical which supplies neck and thyroid as it splits again into inferior thyroid artery
What are the parts of the thyroid gland supplied by
Inferior by inferior thyroid artery from the thyrocervical branch from the 3rd division of the subclavian artery
Superior supplied by superior thyroid artery from the internal carotid artery
Where does the bifurcation of the common carotid artery occur
It the laryngeal prominence of the thyroid cartilage
What are the two major arteries supplying the brain
Vertebral artery 2nd division of the subclavian arterymane the internal carotid artery
These form the circle of Willis
What happens when the common carotid bifurcated
Splits into internal and external
Internal stays in carotid sheath and continues up to the cranial cav
Internal carotid also contains the carotid sinus which contains baroreceptors whic monitor blood pressure
External carotid leaves sheath
What nerve innervates the carotid sinus and carotid body
CN 9 Glossopharyngeal
What is the carotid body
Contains the peripheral chemoreceptors and are external to carotid arteries
What are the branches form the external carotid
8 branches Superior thyroid Ascending pharyngeal Lingual Facial Occipital Posterior auricular Maxillary Superficial temporal
(Some Anatomist Like Fries Others Prefer Mashed Spuds)
What does the intralveolar artery supply
Branches to supply the teeth
What makes up the external jugular vein
Posterior division of the retromandibular vein and the posterior auricular
What makes up the common facial and what doe this eventually drain into
The anterior division of the retromandibular vein and the facial vein = common facial
This then Drains into internal jugular
