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Arteries are sometimes called the ____ vessels of the cardiovascular system because they ca stand high blood pressue
The outermost wall of an artery or vein is called the ____ and in large arteries and veins contains the _____
tunica externa; vasa vasorum
This figure shows variations in circulatory pathways. The pathway labeled ____ shows alternative routes of blood supply found in the heart.
These are all possible circulatory routes from the heart except
heart -- arteries-- capillary bed -- vein -- capillary bed -- arteries -- heart
in people who stand for long periods, blood tends to pool in the lower limbs and this may result in varicose veins. Varicose veins are caused by
failure of the venous veins
This figure shows changes in blood pressure relative to distance from the heart. What would be the approximate blood pressure in a blood vessel leaving the stomach for a person lying on her back (not standing)?
below 20 mm Hg
What is the mean arterial pressure for a person with 110 and 65 mm Hg as systolic and diastolic pressure, respectively?
80 mm Hg
____ are powerful vasoconstrictors, and ____ also increased heart rate.
Epinephrine and angiotensin II; epinephrine
The most important force driving filtration at the arterial end of capillary is
blood hydrostatic pressure
the most important force driving reabsorption at the venous end of a capillary is
blood colloid osmotic pressure
a mean arterial pressure (MAP) below 60 mmHg can cause ____, whereas a MAP above 160 mmHg can cause
syncope; cerebral edema
____ shock occurs when bacterial toxins trigger vasodilation and increase capillary permeability
A bee sting can trigger a massive release histamine, which cause ____ and a(n) ____ in arterial blood pressure
Blood flow in the ___ remains quite stable even when mean arterial pressure (MAP) fluctuates from 60 to 140 mm Hg
This figure shows the aorta and its major branches What label shows the artery on the right side of the body with the most extensive distrubution of all the head-neck arteries?
This figure shows the superficial veins of the neack and head. What does "8" represent?
the subclavian v.
From superior to inferior, the major branches of the abdominal aorta are
celiac trunk, superior mesentric artery, renel arteries, gonadal arteries, inferior mesenteric artery, and common illiac arteries.
This figure shows the arteries of the abdomen and pelvic region. What does "6" represent?
the inferior mesenteric a.
This figure shows the arteries of the abdomen and pelvic region. What does "2" represent?
the hepatic portal vein
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