Questions and Answers
What is the term pertaining to the heart and blood vessels?
cardiovascular
___ causes one out of every three deaths in the U.S.
Cardiovascular disease (CVD)
What are five of the most prevalent cardiovascular diseases?
hypertension, coronary heart disease, stroke, congestive heart failure, congenital heart disease
The ___ system uses a muscular pump to send a complex fluid on a continuous trip through a closed system of tubes.
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Which part of the cardiovascular (circulatory) system is the pump?
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Which part of the cardiovascular (circulatory) system is the fluid?
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Which part of the cardiovascular (circulatory) system is the closed system of tubes?
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The term ___ refers to the body's blood vessels.
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What are the vessels that carry blood away from the heart?
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What are the vessels that carry blood toward the heart?
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___ are the farther, small-diameter extensions of arteries.
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The arterioles lead eventually to ___.
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What are the smallest extensions of the vascular system?
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At the ___ level, exchanges of oxygen, food, and waste occur between cells and the blood.
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Once the blood leaves the capillaries, it drains into ___.
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The blood flows from the venules to the ___.
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Blood pressure is highest in the arteries.
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Blood pressure is lowest in the arteries.
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Blood pressure is lowest in the veins.
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Blood pressure is highest in the veins.
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The ___ is a four-chambered pump designed to create the pressure required to circulate blood throughout the body.
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What is the term for the chest?
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The heart is about the size of a person's clenched fist.
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What is the portion of the torso above the diaphragm and within the rib cage?
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The heart does not lie completely in the center of the chest.
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The heart lies completely in the center of the chest.
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Approximately ___ of the heart is to the left of the body midline.
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Approximately ___ of the heart is to the right of the body midline.
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What are the two upper chambers of the heart?
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What are the two lower chambers of the heart?
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Which chambers of the heart are considered the collecting chambers?
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Which chambers of the heart are considered the pumping chambers?
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What is the term for the partition that divides the left and right sides of the heart?
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What is the term for the vessels that supply oxygenated blood to heart muscle tissues?
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There are ___ two main coronary arteries with their numerous branches.
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If the coronary arteries are diseased, a ___ is possible.
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What is the term for the specialized muscle tissue that forms the middle (muscular) layer of the heart wall?
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The heart contracts and relaxes through the delicate interplay of ___ and nodes.
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Study Notes
Cardiovascular Health Overview
- The term "cardiovascular" refers to the heart and blood vessels.
- Cardiovascular disease (CVD) is responsible for one in three deaths in the U.S.
Prevalent Cardiovascular Diseases
- Key diseases include:
- Hypertension
- Coronary heart disease
- Stroke
- Congestive heart failure
- Congenital heart disease
Cardiovascular System Components
- The cardiovascular (or circulatory) system functions using a muscular pump, which is the heart.
- Blood functions as the fluid in this system, while blood vessels form the closed system of tubes.
Blood Vessels Explained
- Arteries carry blood away from the heart.
- Veins transport blood toward the heart.
- Arterioles are small-diameter extensions of arteries that lead to capillaries.
- Capillaries are the smallest extensions where oxygen, food, and waste exchange occur.
- Blood drains from capillaries into venules, which then lead to veins.
Blood Pressure Facts
- Blood pressure is highest in the arteries and lowest in the veins.
Heart Anatomy and Function
- The heart is a four-chambered pump responsible for circulating blood.
- The chest area is referred to as the thorax.
- The heart size approximates that of a person's clenched fist and is primarily located to the left side of the body.
Heart Structure
- The heart comprises two upper chambers (atria) and two lower chambers (ventricles).
- Atria are collecting chambers, while ventricles are pumping chambers.
- The septum divides the left and right sides of the heart.
Coronary System
- Coronary arteries supply oxygenated blood to heart muscle tissues, with two main coronary arteries present.
- Diseased coronary arteries can lead to myocardial infarction (heart attack).
- Cardiac muscle forms the muscular layer of the heart wall and is crucial for heart contractions and relaxation.
Heart Positioning
- Approximately two-thirds of the heart lies to the left of the body midline, with one-third to the right.
Heart's Functional Dynamics
- The heart's contractions and relaxations stem from the coordinated actions of cardiac muscle and nodes, which regulate heart rhythm.
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Description
This quiz explores the essential aspects of cardiovascular health, covering prevalent diseases like hypertension and coronary heart disease. You'll learn about the cardiovascular system's components, blood vessels, and the critical role of blood pressure. Test your knowledge on how these elements affect overall health.
