Heart Anatomy and function
Regulation of heart
Electrocardiogram
Blood vessels and Circula.
Heart diseases
100
what is number 7 pointing to?
The aorta
100
The ___ are pressure sensitive nerve endings
Baroreceptors
100
what does "repolarize" mean
To relax
100
Name The three layers of the blood vessels
Tunica intima, Tunica media and Tunica externa
100
_______ is inflammation of the innermost lining of the heart
Endocarditis
200
The myocardium is the ___
Thick, Muscular wall of the heart
200
Which structure of the heart is known as the pacemaker?
Sinoatrial node
200
where is number 1 pointing to?
The P wave
200
What layer of the blood vessel is responsible for vasodilation and vasoconstriction
Tunica media
200
______ is the hardening of the arteries
Atherosclerosis
300
The "lub" of the heart's lub dub sound is caused by the closing of the ___ Valve
Bicuspid and Mitral Valves
300
What part of the brain controls the sinoatrial node?
The medulla oblongata
300
_____ is a condition characterized by a heart rate of 100 or over
Tachycardia
300
Blood flow through the capillaries is controlled by a __________ ___________
Precapillary sphincter
300
What is another name for Hypertension
High blood pressure
400
What is the unit of measurement for cardiac output
(Liters/ per minute)
400
what are the two cardiac center branches?
Parasympathetic and sympathetic branches.
400
What causes PVC (premature ventricular contractions?)
When the Purkinje fibers fire before the SA (sinoatrial node)
400
Which side of the arm is the brachial artery located at
The inner portion
400
What is another name for "Myocardial Infarction"?
Heart attack
500
Name Three functions of the cardiovascular system
-Transportation of oxygen
- removal of carbon dioxide and other waste products
-regulation of body temperature
-maintenance of acid-base balance
-transportation of hormones
-assistance in immune function
500
The parasympathetic branch releases which chemical to decrease the heart rate
Acetylcholine
500
You look on your patients monitor to see this, which cardiac arrhythmia is it?
Ventricular tachycardia
500
_____ is a short broad vessel in the fetus that connects the left pulmonary artery with the descending aorta, allowing most of the blood to bypass the infants lungs.
Ductus Arteriosus
500
What does PVD stand for?
Peripheral Vascular Disease