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42 Cards in this Set
- Front
- Back
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Blood Flow Path
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Heart->Arterioles->Capillaries->Venuoles->Veins->Heart
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Arteries
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Carry oxygenated blood away from the heart
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Capillaries
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responsible for exchange btw blood and tissue cells->release of O2->to become venules
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Veins
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carry deoxygenated blood to the heart from the body and the heart.
EXCEPTION: pulmonary veins carry oxygenated blood |
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Varicose Veins
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Leaky insufficient valves (back up) in carrying blood towards the heart. Veins and venules carry most of the blood in the system
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Arteritis
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artery inflammation
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Aneurysm
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dilation and weakness of a blood vessel (aortic or brain)
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Phlebitis
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Vein inflammation
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Thrombophlebitis
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inflammation of a vein with clot formation
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Orthstatic/Postural Hypotension
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A drop/extreme lowering of blood pressure as person becomes upright. Associated with disease
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Blood Flow
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Amount of blood that passes through a vessel in a given tim (L/min). It is determined and effeted by 1. Pressure and 2. Resistance
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Resistance to blood flow is effected by:
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1. Viscosity
2. Blood vessel length 3. Blood vessel radius |
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Blood Pressure is effected by
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1. CO (cardiac output)
2. Blood Volume 3. Peripheral resistance |
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Vasomotor Center
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located in the medulla: controls blood vessel diameter-->changes in BP
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Atrial natriuretic preptide (ANP)
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Receptor cells located in the heart atrium detect elevated blood pressure->vasodilation->decrease in salt & water->decrease in BP
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Name the three branches of the Aortic Arch
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1. brachiocephalic
2. common carotid 3. left subclavian |
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Brachiocephalic artery divides into:
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1. R common carotid a.
2. R subclavian a. |
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Vertebral artery comes off the:
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1. subclavian a.
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Circle of Willis
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Vascular connection in the brain btn the vertebral and internal carotid arteries.
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Vertebral arteries come together to form the:
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Basilar a.
This creates a dual supply to the brain. They come together at level of the pons. |
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Brain blood supply is provided by:
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1. Internal Carotid a. (rt & lt)
2. Vertebral a. (rt & lt) |
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Common carotid divides into:
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1. Internal carotid a.
2. External carotid a. |
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Internal carotid a. supplies blood to:
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1. brain
2. eye (retinal artery) |
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External carotid a. supplies blood to:
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Everything besides the brain & eye.
(facial, nasal, maxillary, occipital lobe). |
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Blood/veins from the brain and eye drain into the:
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Internal jugular
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Blood/veins above the level of the heart drain into the :
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superior vena cava
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sUperficial palmar arch a is supplied from:
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Ulnar a.
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Deep palmar arch is supplied from:
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raDial a,
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Internal jugular v. along w/ subclavian v. drain into the:
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brachiocephalic v.
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Heart->aorta->thoracic aorta FEEDS:
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Above the diaphragm
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Heart->ascending->arch->descending
->abdominal aorta FEEDS: |
below the diapragm
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what nerve supplies the diaphragm?
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phrenic nerve
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what artery supplies the stomach
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celiac a.
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main branches off abdominal aorta are:
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rt & lt. common iliac a., wh divides into the internal iliac a. and ext iliac a.; Ext is larger one and comes str down
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Most common sit for an abdominal aneurysm:
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the area btw the renal arteries and the bifurcation of the abdominal aorta
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most common site of artherosclerotic plaques is:
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at the bifurcation of the abdominal aorta
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signs of abdominal aneurysm
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pain radiating down the back of the lower limbs
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IVC and Tributaries
rt. suprarenal v. & rt. gonadal v. enter |
inferior vena cava
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IVC and Tributaries
lt. suprarenal v. & lt. gonadal vein enters |
lt. renal vein, then-->IVC
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Liver has dual blood supply
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1. filters blood from GI organs
2. blood supply of O2 to the liver |
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"first pass effect"
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liver filters blood from all of the GI organs. this describes the enzyme filtering or metabolizing. this effect is how much is degraded when it goes through the liver (drugs, alcohol, vitamins)
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Other organ w/ dual blood supply is the
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heart:
1.bl to be oxygenated for body 2. blood for oxygen to the organ itself |
