whaat is the importance of the quadrangular space?
The quadrangular space is an anatomical region located in the posterior aspect of the shoulder. It serves as a passageway for the axillary nerve and posterior circumflex humeral artery, which are important structures that innervate and vascularize the shoulder joint and surrounding muscles. Damage to these structures due to trauma or compression within the quadrangular space can result in shoulder weakness, numbness, and pain.
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what artery runs with the axillary nerve
the posterior humeral circumflex artery in the quadrangular space
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where does the axillary artery become the brachial artery?
past the teres major
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deep brachial artery
branch of the brachial artery in the shoulder area that a pieces the triceps and travels with the radial nerve
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what are the two major branches of the brachial artery in the forearm?
radial and ulnar arteries
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what is anastomosis
A surgical connection between two structures, such as blood vessels, intestines, or nerves, to allow the flow of fluids or information.
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physiologic examples of anastomosis
superficial palmar arch and deep palmar arch, circle of willis, anterior and posterior inter ventricular artery
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pathologic examples of anastomosis
fistulas, intestines
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possible types of anastomosis
arterioarterial, venovenouos, arteriovenous
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formation of the superior palmar arch in the hand
\-ulnar artery
\-completed laterally by superficial branches of the radial artery
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what forms the deep palmar arch in the hand?
radial artery
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list the superficial veins of the arm and forearm
basilic, cephalic, antecubital
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antecubital vein
median cubital vein
\-used to obtain blood or administer IV fluids
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important branches of the descending aorta
\-bronchial arteries
\-phrenic arteries
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what are the paired branches off of the abdominal aorta
gonadal and renal
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order of the femorals
femoral nerve, femoral artery, femoral vein
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what is the main branch of the femoral artery?
deep femoral artery
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what rarer the branches of the deep femoral artery?
medial and lateral circumflex femoral arteries
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course of the branches of the deep femoral artery
\-medial passes posteriorly to the femur
\-lateral pasases anterioly
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supply by the medial circumflex artery
the main artery that supplies the head and neck of the femur
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clinical significance of medial circumflex femoral artery
damage to this artery following a femoral neck fracture can result in avascular necrosis of the femoral head
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when does the femoral artery become the popliteal artery?
past the adductor hiatus
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location of the popliteal artery
runs between the two heads of the gastrocnemius and gives rise to the tibia arteries
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name the branches of the popliteal artery
anterior tibial, posterior tibial, a bunch of genicular arteries
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what artery gives rise to the dorsals pedis artery?
anterior tibial (branch of popliteal)
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what artery gives rise to the fibular artery?
posterior tibial (branch oof popliteal)
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clinical significance of dorsals pedis artery
\-on the anterior side of the ankle
\-major source of blood supply to the foot and its pulse can be palpated
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what arteries give rise to the arterial circle (circle of willis) in the brain?
internal carotid and vertebral
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what are the arteries that make up the circle of willis?
A circulatory system structure found at the base of the brain, consisting of arteries that supply blood to the brain and surrounding structures. It includes the anterior cerebral arteries, posterior cerebral arteries, and the internal carotid arteries.
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For example, when the
_____ __has an obstructed blood__ \n __flow, the__ _____ __can supply blood flow to the anterior__ \n __compartment of the brain through__ ____.
internal carotid
vertebral artery
basilar artery
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which dural sinuses drain into the confluence of sinuses?
superior and inferior sagittal sinus
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what does the accessor hemiazygos and hemiazygos veins drain?
left posterior thorax and posterior intercostal
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CT manifestation of PE
the diameter of the RV is enlarged and bigger than the LV
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what vessel is the gold standard for use in CABG surgery?
internal thoracic artery, branch of subclavian
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branches of external carotid
some anatomists like freaking out poor medical students
This space is crucial for the passage of vital structures such as the axillary nerve and posterior circumflex humeral artery. It also serves as a landmark for identifying the teres minor and major muscles in the shoulder region.
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what arteries wrap around the surgical neck of the humerus?
anterior and posterior humeral circumflex arteries
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what artery forms the superficial palmar arch in the hand?
ulnar artery
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what artery forms the deep palmar arch?
radial artery
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what are the branches of deep femoral artery
medial and lateral circumflex femoral arterriese
medial passes psosterriorly
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what is the main artery supplying the head and neck of the femur?
medial circumflex femoral artery
\-damage to this artery following a femoral neck fracture can result in avascular necrosis of femoral head