Exam 4 Blood Vessels of the Head and Neck Flashcards
communication of a
blood vessel with another blood vessel by a
connecting channel
Anastemosis/anastemoses
blood filled spaces between
two layers of tissue
Venous sinuses
clot that forms on the inner blood vessel wall
“Stuck”
Thrombus
foreign material or clot “travelling” in
the blood that can block the vessel
Embolus
What is different about the pulmonary arteries and veins?
Arteries carry oxygenated blood away from the heart and supply the body
Veins carry the deoxygenated blood toward the heart
What is different about the pulmonary arteries and veins?
Arteries carry oxygenated blood away from the heart and supply the body
Veins carry the deoxygenated blood toward the heart to be replenished
travels underneath the sternocleidomastoid muscle (SCM), adjacent to the internal jugular vein (IJV)
Internal Carotid Artery ICA
Supplies intracranial structures and is the source of the ophthalmic artery
Internal Carotid Artery
Branches of ICA:
Ophthalmic artery: supplies eye, orbit, and lacrimal
gland
Inferior alveolar artery is a branch from
Maxillary artery
Supplies the extracranial tissues of the head an neck, including the oral cavity
HAS MANY BRANCHES
External Carotid Artery
Superior Thyroid Artery Lingual Artery Facial Artery *Ascending Pharyngeal Artery Occipital Artery Posterior Auricular Artery Maxillary Artery Superficial Temporal Artery
*Lies medially, not pictured here as it is not visible from the lateral aspect
Direct Branches of ECA
____ arteries supply all dental structures
maxillary artery
Tissues inferior to Artery
the hyoid bone, including infrahyoids, SCM, muscles of larynx and thyroid gland
Anterior: Superior Thyroid Artery
Tissues superior to hyoid bone including suprahyoids and FOM
Anterior: Lingual Artery
Face in the oral, buccal, zygomatic, nasal, infraorbital, and orbital regions
Anterior: Facial Artery
Pharyngeal walls, pharyngeal
soft palate, meninges of the brain
Medial: Ascending Pharyngeal
Suprahyoids, SCM, scalp and meningeal tissues in occipital region
Posterior: Occipital Artery
Internal ear and
mastoid air cells
Posterior: Auricular
Parotid salivary duct Terminal
artery
and nearby facial tissues, temporalis muscle, scalp in frontal and parietal regions
Terminal: Superficial Temporal Artery