BV last cards Flashcards
Valves are present in _____
Veins
Deoxygenated blood int he fetal circulation is carried in the ____, while oxygenated blood is carried in the ________.
umbilical artery, umbilical vein
Increased levels of epinephrine cause
an increase in systemic blood pressure due to net vasoconstriction.
An increase in venous return most directly affects
Stroke Volume
Increased levels of aldosterone cause
an increase in venous return because more water is reabsorbed into the blood from the kidneys to increase total blood volume.
Blood flow increases if
Vasodilation Increases
Blood flows most slowly through ______
capillaries because their total cross-sectional area is the largest.
Identify the following under normal conditions
17mm Hg
35 mm Hg
If blood hydrostatic pressure equals 30 mm Hg, blood colloid osmotic pressure equalls 26 mm Hg, interstitial fluid osmotic pressure equals 5 mm Hg, and interstitial fluid hydrostatic pressure equals 2 mm hg, the net fitration pressure will
tend to filter fluid and solutes
Standing still for long periods may decrease cardiac output because ______
venous return decreases due to lack of skeletal muscle pumping of veins, so stroke volume drops.
“Ace inhibitors” work as antihypertensive drugs by
decreasing angiotensin ii formation
The blood vessels that serve the blood vessel walls are called the __________.
Vasa Vasorum
Define blood pressure. Differentiate between systolic and diastolic blood pressure. What is the normal pressure value for a young adult?
the pressure of blood against the walls of any blood vessel. the maximum or systolic pressure occurs near the end of the stroke output of the left ventricle, and the minimum or diastolic late in ventricular diastole. The normal blood pressure in a young adult is 120/80.
What is the difference between primary hypertension and secondary hypertension?
Primary, or essential, hypertension, indicates that the condition originated within the body and not as a result of a disease, and no cause for it can be determined.
Secondary hypertension develops as a result of a condition or disease within the body.
List 5 factors that contribute to hypertension.
1) obesity,2) smoking 3 )lack of physical activity
4) vitamin D deficiency 5) diabetes