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Anatomy ch. 11*
The cardiovascular system
Question | Answer |
---|---|
The cardiovascular system is composed of the ____________ and _____________________ | heart, blood vessels |
blood vessels form the __________________ system | cardiovascular |
_______________is an indicator of heartbeat | pulse |
_________________is produced by the heartbeat | blood pressure |
arteries and arterioles carry blood from the ______________to the rest of the body | heart |
veins and venules carry blood from the ________ to the heart | body |
________________are small blood vessels that exchange materials with tissues | capillaries |
_________________is the narrowing of a vessel | vasoconstriction |
_________________is the widening of a vessel | vasodilation |
the heart is made of ________________covered by a protective _________________ | myocardium, pericardium |
the heart is composed of _____________chambers that are separated by a ___________into two halves | four, septum |
the left half of the heart controls ________________ circulation | systemic |
the right half of the heart controls ________________ circulation | pulmonary |
the four major blood vessels are the _____________, pulmonary artery, _________________, and venae cavae " vena cava" | aorta, pulmonary veins |
the _____________conduction system of the heart stimulates and coordinates the heartbeat | electrical |
the fetal heart is disigned to keep blood away from the _________________ | lungs |
one pumping action of the heart is called the ______________cycle | cardiac |
______________is the filling of the atria and ventricles, ______________ is the emptying of the ventricles | diastole, systole |
______________is the number of cycles per minute | heart rate |
______________is the amount of blood pumped per cycle | stroke volume |
______________is the volume of blood pumped per minute | cardiac output |
________________measures the electrical activity of the heart | electocardiography |
an _______________is a recording of electrocardiography | ECG |
ECGs are recorded as __________ | waves |
the ______, _________, ______, ______, and _______waves make up the wave of a cardiac cycle | P,Q,R,S,T |
the QRS complex, P-R interval, Q-T interval and S-T intervals are indicators of ________________ and _______________ | depolarization, repolarization |
________________have thicker and more muscular walls than veins | arteries |
most of the exchange between the blood and tissues takes place across these vessels _______________ | capillaries |
blood exits the heart through ________________ | arteries |
_____________ECG feature indicates abnormalities of venticular depolarization | QRS complex |