______ is measured during the contraction phase.
Answer: systole
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Human Biology
- What condition occurs when fatty deposits (plaque) develop in the inner walls of arteries, clogging the passage way of blood flow.
- What large blood vessels carry blood from aorta to the tissues of the heart?
- What disease of the heart and blood vessels is responsible for 40% of all deaths in the U.S.?
- Exchanging wastes and nutrients, controlling chemical balance, controlling composition of blood, regulating body temperature, distributing hormones, and defending against foreign invaders are all ways the circulatory system maintains _____________.
- What condition is the cancer of white blood cells?
- What condition may result from the inability to clot blood?
- Platelets release clotting factors that convert _______ to a threadlike protein called fibrin.
- What component of blood adheres to damaged tissue to seal minor breaks?
- What component of blood are bits of membrane-wrapped cytoplasm pinched off from larger cells in bone marrow?
- What is the smallest blood cell type?
- What blood cells help fight infection?
- What hormone do the kidneys produce that boosts red blood cell production?
- What condition is caused by abnormally low amounts of hemoglobin or red blood cells?
- Red blood cells are shaped like discs, giving themselves more __________ for better gas exchange.
- What is the iron-containing protein that transports oxygen?
- What is most numerous blood cell type?
- What blood cell contains hemoglobin that transports oxygen?
- 45% of plasma consists of what 3 things?
- About 90% of plasma is ______.
- About __% of blood is plasma.
- What is the yellowish liquid in blood called?
- How many liters of blood do humans have?
- What condition occurs when veins stretch and enlarge leaving the veins weakened and swollen, and causing cramps and blood clots?
- What controls blood flow into capillary beds?
- What condition is characterized by persistent systolic blood pressure higher than 140 and/or diastolic blood pressure higher than 90. AKA "silent killer."
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