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Block 1 CV System
BrownMed
21
Anatomy
Graduate
08/26/2010

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Cards

Term
All vessels except capillaries have this structure
Definition
Outside - collagen, elastin. Middle - smooth muscle. Inside - Endothelium.
Term
Veins have 1) what pressure and 2) how much of the body's blood volume
Definition
1) 5-10 mmHg, 2) 65%
Term
Aorta has 1) high/low O2 and 2) what pressure
Definition
1) high, 2) ~100 mmHg
Term
More superior arteries are elastic, muscular, endothelial, or arterioles?
Definition
Elastic
Term
More medial arteries are elastic, muscular, endothelial, or arterioles?
Definition
muscular
Term
Inferior arteries are elastic, muscular, endothelial, or arterioles?
Definition
Arterioles
Term
What pressure do capillaries carry?
Definition
10-30 mmHg
Term
Why shouldn't you lock your knees when standing straight?
Definition
Leg muscles constrict veins, helping to push blood back to the heart. When you lock your knees, leg muscles relax and blood pools in your feet, causing low blood pressure and potentially syncope
Term
Anastomoses
Definition
Network of many paths to the same point. Example: capillary beds
Term
Which vascular system is irregular?
Definition
Portal system, consisting of two capillary beds separated by the portal vein. Located in the liver.
Term
1) Where do coronary arteries branch from? 2) How many main coronary arteries are there?
Definition
1) aorta, 2) 2, the right and the left.
Term
Name of valve between RV and the pulmonary arteries
Definition
pulmonic valve
Term
Where do lymphatic vessels empty?
Definition
veins
Term
(2) Functions of lymphatic vessels
Definition
Scavenge and transport
Term
(2) Functions of lymph nodes
Definition
Digest and protect
Term
(3) Lymphatic organs
Definition
Tonsils, spleen, thymus
Term
What empties into lymphatic vessels?
Definition
capillaries
Term
Swollen lymph nodes
Definition
Lymphadema
Term
Right lymphatic duct 1) works for which part of the body and 2) empties into what?
Definition
1) Right shoulder region and arm, 2)Right venous angle
Term
Thoracic duct 1) works for which part of the body and 2) empties into what?
Definition
1) Legs, torso, and left arm, 2) Left venous angle. NOTE - the spleen and thymus are located in the thoracic duct's area of activity.
Term
(3) Key features of lymphatic system
Definition
1-way flow, low pressure, low flow (2-3L/day)
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