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28 Sep 2019
1. What is the importance of the valves of the heart?
- regulation of heart rate
- coordination of the contraction of ventricles
- allow blood to enter the heart from the arteries
- prevent backflow of blood from ventricles to atria
2. Why is blood pressure lower during diastole than duringsystole?
- More blood flows into the heart during systole than duringdiastole
- The contraction of the heart during systole increases the bloodpressure against arterial walls.
- The contraction of the heart during diastole decreases theblood pressure against arterial walls.
- The contraction of the heart during systole increases the bloodpressure against the valves separating the atria from theventricles.
- The relaxation of the heart during diastole decreases the bloodpressure against arterial walls.
3. Atherosclerosis can be caused by_____________?
- the blood vessels becoming to elastic
- the release of stress hormones such as epinephrine
- chronic hypertension
- a lack of calcium in the diet
4. If you become dehydrated, and your blood pressure drops. Howwill the kidneys respond?
- by producing a large amount of urine
- by returning more water to the blood stream and producing lessurine
- by shutting down.
- by moving fluid from the urinary bladder back into the bloodstream.
5. What is the site of gas exchange within the lungs?
- alveloi
- bronchioles
- larynx
- trachea
6. What would help destroy pathogens on food you eat?
- digestive enzymes
- inflammation
- the oil secreted onto your skin
- stomach acid
7. What led to the 2008 San Diego and 2015 measles outbreaks atDisneyland?
- poor hand washing by food workers
- California's measles vaccination rates had fallen bellow levelsrequired for heard immunity.
- the MMR vaccine is no longer effective.
- over-use of antibiotics.
1. What is the importance of the valves of the heart?
- regulation of heart rate
- coordination of the contraction of ventricles
- allow blood to enter the heart from the arteries
- prevent backflow of blood from ventricles to atria
2. Why is blood pressure lower during diastole than duringsystole?
- More blood flows into the heart during systole than duringdiastole
- The contraction of the heart during systole increases the bloodpressure against arterial walls.
- The contraction of the heart during diastole decreases theblood pressure against arterial walls.
- The contraction of the heart during systole increases the bloodpressure against the valves separating the atria from theventricles.
- The relaxation of the heart during diastole decreases the bloodpressure against arterial walls.
3. Atherosclerosis can be caused by_____________?
- the blood vessels becoming to elastic
- the release of stress hormones such as epinephrine
- chronic hypertension
- a lack of calcium in the diet
4. If you become dehydrated, and your blood pressure drops. Howwill the kidneys respond?
- by producing a large amount of urine
- by returning more water to the blood stream and producing lessurine
- by shutting down.
- by moving fluid from the urinary bladder back into the bloodstream.
5. What is the site of gas exchange within the lungs?
- alveloi
- bronchioles
- larynx
- trachea
6. What would help destroy pathogens on food you eat?
- digestive enzymes
- inflammation
- the oil secreted onto your skin
- stomach acid
7. What led to the 2008 San Diego and 2015 measles outbreaks atDisneyland?
- poor hand washing by food workers
- California's measles vaccination rates had fallen bellow levelsrequired for heard immunity.
- the MMR vaccine is no longer effective.
- over-use of antibiotics.
Bunny GreenfelderLv2
29 Sep 2019