18 Questions
What is the primary pump of the cardiovascular system?
The Heart
What is the average weight of the heart for an average male?
11 oz.
Which part of the heart receives blood returning from the body?
Right side
What is the function of the interventricular septum in the heart?
Separates the two sides of the heart
Which valve is responsible for 1-way blood flow from left atrium to left ventricle?
Bicuspid/mitral valve
What is the purpose of semilunar valves in the heart?
Prevent back-flow of blood into the heart between contractions
During the cardiac cycle, which phase is responsible for the ejection of blood from the heart?
Systole
What is the function of atrial chambers in the heart?
Receive and store blood during ventricular contraction
What does the simultaneous contraction of both atria in the heart result in?
Forcing blood into the ventricles
Which component of blood pressure measurement gives an estimate of the work of the heart during contraction?
Systolic blood pressure
What happens almost immediately after atrial contraction in the heart?
Ventricles contract and propel blood into arterial system
In the arterial system, what regulates blood flow to the periphery?
Smooth muscle in arteriole walls
What is the formula to calculate Mean Arterial Pressure (MAP) mentioned in the text?
MAP = DBP + [0.333 (SBP - DBP)]
What are the consequences of chronic hypertension if left untreated as mentioned in the text?
Arteriosclerosis, heart disease, stroke, and kidney failure
Which factor plays a significant role in the long-term regulation of blood pressure according to the text?
Kidneys (renin-angiotensin-aldosterone system)
Which sound corresponds to diastolic blood pressure when measuring arterial blood pressure?
2nd sound
What happens to sympathetic nervous system (SNS) activity with an increase in blood pressure?
Decreased SNS activity
What are the characteristics of arteries in hypertension according to the text?
Excessive resistance due to hardening with fatty material in walls
Test your knowledge on the 4 components of the cardiovascular system and general facts about the heart. Learn about the primary pump, arterial system, exchange vessels, and venus circuit, along with information on the heart's chambers and size variations.
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