A&P Blood vessels
The endothelium is found in the ________.
tunica intima
In the myogenic response, ________.
vascular smooth muscle responds to stretch
In the renin-angiotensin-aldosterone mechanism, ________.
aldosterone prompts the kidneys to reabsorb sodium
The coronary arteries branch off of the ________.
ascending aorta
Venoconstriction increases which of the following?
blood pressure within the vein blood flow within the vein return of blood to the heart
Nervi vasorum control ________.
both vasoconstriction and vasodilation
Arteries serving the stomach, pancreas, and liver all branch from the ________.
celiac trunk
In a blood pressure measurement of 110/70, the number 70 is the ________.
diastolic pressure
The right and left brachiocephalic veins ________.
drain blood from the right and left internal jugular veins drain blood from the right and left subclavian veins drain into the superior vena cava
Slight vasodilation in an arteriole prompts a ________.
huge decrease in resistance
A form of circulatory shock common in young children with severe diarrhea or vomiting is ________.
hypovolemic shock
A healthy elastic artery ________.
is compliant
The hepatic portal system delivers blood from the digestive organs to the ________.
liver
Blood islands are ________.
masses of developing blood vessels and formed elements scattered throughout the embryonic disc
The ductus venosus is a shunt that allows ________.
most freshly oxygenated blood to flow into the fetal heart
An especially leaky type of capillary found in the liver and certain other tissues is called a ________.
sinusoid capillary
Net filtration pressure is calculated by ________.
subtracting the blood colloid osmotic pressure from the capillary hydrostatic pressure
Clusters of neurons in the medulla oblongata that regulate blood pressure are known collectively as ________.
the cardiovascular center
Hydrostatic pressure is ________.
the pressure exerted by fluid in an enclosed space
Which of the following best describes veins?
thin walled, large lumens, low pressure, have valves
Which of the following statements is true?
As blood volume decreases, blood pressure and blood flow also decrease.
Which of the following statements is true?
In one day, more fluid exits the capillary through filtration than enters through reabsorption.
Which of the following statements is true?
One umbilical vein carries oxygen-rich blood from the placenta to the fetal heart.
Which of the following statements is true?
The radial and ulnar arteries join to form the palmar arch.
Closer to the heart, arteries would be expected to have a higher percentage of ________.
elastic fibers