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What are the very first branches off the aorta Coronary arteries What is the function of the coronary arteries To supply the heart muscle; the Myocardium The result of the coronary arteries becoming blocked Myocardial Infarction What does in "infarction" mean Death of tissue caused by deprivation of oxygen Ischemic tissue is lacking what? Oxygen Name the two branches off the brachiocephalic, 1. Right Subclavian artery 2. Right Common Carotid Artery Between which two points is the subclavian pulse found? 1. Where the R & L clavicles join 2. Where the shoulder attaches to the trunk Which artery does the axillary artery originate from? The subclavian What is the landmark for the brachial artery Antecubital Fossa What is the Antecubital Fossa The space formed on the front of the elbow This artery starts at the axillary artery and ends at the elbow Brachial artery Where does the Right CCA originate from Bifurcation of the innominate or brachiocephalic artery. Name the largest caritilage of the larynx Thyroid Cartilage The thyroid cartilage is the spot for birfurcation of the CCA Internal and external carotid These cells are contained in the Carotid Sinus Pressoreceptors Explain the effect of physical stimulation on the carotid sinus 1. Premature ventricular contraction to 2. ventricular tachycardia 3..ventricular fibrillation 4. asystole 5.abscence of heartbeat The miningeal artery becomes an intracranial vessel by entering what? Foramen Spinosum Name the vessel provides blood to the dura mater and to the cranial bones. Middle meningeal artery The internal maxillary artery terminates by entering this opening in the cheek Infraorbital foramen Beyond the infraorbital forament the internal maxillary artery becomes which artery infraorbital artery (IOA) Where may the infraorbital pulse be found upper cheekbone, under the eye socket, usually near the middle of the eye. The term for muscles dilate, contract myogenic Term for muscles relaxing due to impulses neurogenic Term for the release of chemical signals Metabolic Who was the first individual to measure blood flow Seymour Kety What is the standard diameter of the ECA 5mm What is the diameter of CCA 1cm=10mm Which carotid vessel is larger after the bifurcation Internal Carotid Artery Which carotid vessel has the highest resistance ECA Who was the father of neurology Thomas Willis - 1664 "Cerebral arterial circle The point where the transverse sinus and sigmoid sinus converge Confluence of Sinuses "Torcular Herophili" What percentage of population has a complete Circle of Willis 96% What percentage of population has a symmetrical Circle of Willis 73% What percentage of population has a posterior communicating asymmetry 22% What percentage of population has a posterior communicating absent 3% What percentage of population has a posterior communicating duplication 7% Which structures does the occipital artery supply muscles of the neck and scalp and other external structures in the area The Internal Maxillary artery branches from this vessel External Carotid Artery Name the opening in the Shenoid bone Foramen Spinosum The internal artery terminates at this spot Infraorbital foramen After the Internal Maxillary artery branches from the ECA; what does it become Superficial temporal artery Name the curved portion of the internal carotid artery Carotid Siphon What test are the three branches of the opthalmic artery used for ophthalmosonometry (periorbital Doppler examination) Name the three branches off the opthalmic artery 1. Supraorbital artery 2. Frontal artery 3. Nasal artery The posterior half of the Circle of Willis is sometimes called what? Vertebrobasilar circulation Name the arteries arising from the ECA in order from anterior to posterior. - superior thyroid - ascending pharyngeal - lingual - occipital - posterior auricular - maxillary - superficial temporal