Chapter 8
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When the coronary artery’s become clogged and blood flows to the heart it’s reduced the person they experience cramping chest pain upon exertion prior to full blown heart attack. This condition is
Angina pectoris
An ECG measures
The electrical activity of the heart
When the heart becomes weaker and less efficient pumping blood the blood me back up in the veins and cause a condition known as
Congestive heart failure
Blood flows from the right ventricle two
Pulmonary arteries
A persons resting blood pressure is 190/90 mm what condition is presented
Hypertension
In which blood vessels does the most exchange of nutrients and waste between blood and tissue color
Capillaries
The homeostatic regulation of the cardiovascular system is designed to maintain
Constant arterial blood pressure
Semilunar valve’s present blood from flowing
Backward into a ventricle
The cardiac conduction system initiates and delivers an electrical impulse that begins in the
Sinotrial node
Hypertension is caused by all except
Periodic elevated blood pressure levels
The systemic circuit delivers
Oxygenated blood to the body
Which of the following Describing hypertension is false
Easily diagnosed
What don’t arteries have
Valves
Which veins carry oxygenated blood
Right and left Pulmonary veins
A pacemaker is used to correct
Cardiac arrhythmias
As the blood travels through the circulatory system the greatest drop in pressure occurs in
Arterioles
Which of the following are involved in regulating blood pressure
Heart Baroreceptors cardiovascular center in medulla oblongata
A heart attack is due to the sudden death of heart tissue
True
Smokers who have a heart attack I nearly 4 times as likely as non-smokers
True
Systolic pressure measures the force
True
heart sounds are caused by the pressure exerted on the walls
False
In the capillary beds of the pulmonary circuit
False
Regulation of cardiac output is controlled by
True
In the heart blood travels literally
False