Anatomy Midterm 3 - Lecture 11.docx

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Department
Anatomy and Cell Biology
Course
Anatomy and Cell Biology 3319
Professor
Michele Barbeau
Semester
Winter

Description
Systemic Circulation: Principal Arteries ­ patent foramen ovale o the foramel failed to close o causes heart attack ­ flap usually closes due to pressure difference o then fuses ­ right and left coronary arteries are the first two branches of aorta ­ brachiocephalic branches into right common carotid  o which splits into internal and external carotid arteries ­ brachiocephalic also branches into right subclavian artery o below the clavical ­ right vertebral artery o travel through transverse foramen in cervical vertebrae o enters through foramen magnum ­ common carotid artery o internal carotid artery enters head through carotid canal o and foramen lacerum ­ both supplies to brain at the split of common carotid ­ swelling – carotid sinus o specialized cells that measure stretch and pressure ­ carotid body – has chemoreceptors o about blood oxygen levels o detect chemicals in blood ­ occurs at adams apple ­ vertebral arteries fuse into basilar artery ­ anastimose  ­ basilar artery splits into posterior cerebral artery o continues to supply occipital lobe o also forms circle of willis ­ internal carotid has anterior cerebral artery ­ middle cerebral artery – supplies temporal and middle of brain ­ anterior cerebral arteries supply frontal lobe ­ done by injecting radioactive something catheter – to damaged site ­ filled with wired coil ­ hope that itll block it off and blood wont go in ­ and itll bypass it ­
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