Body systems cardiovascular
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43 Terms
What blood vessels carry blood toward the heart
Venues and veins
Which blood vessel has the thinnest walls
Capillaries
Which blood vessels carry oxygenated blood
Arteries and arteriole
Which blood vessels have capillary sphincters
Arterioles
Which blood vessels have gas exchange with cells occur
Capillaries
Which blood vessels carry deoxygenated blood
Venues and veins
Which blood vessels carry blood away from the heart
Arteries
Route
Deoxygenated: vena cava→ right atrium→tricuspid valve→right ventricle→pulmonary valve→ pulmonary artery→ lungs
Oxygenated: lungs→pulmonary vein→ left atrium→ mitral valve (bicuspid valve)→ left ventricle→ aortic valve→ aorta
Which blood vessel has the thickets wall
Arteries
What tissues cover the cardiac valve
Endocardium
What is the muscle tissue of the heart
Myocardium
What is the tough outer connective tissue of the heart
Pericardium
Which heart tissue secrets pericardial fluid
Epicardium
Which cardiac chamber is associated with the pulmonary trunk/artery
Right ventricle
Which cardiac chamber is associated with the superior/inferior vena cava
Right atrium
Which cardiac chamber is associated with the aorta
Left ventricle
Which cardiac chamber is associated with pulmonary veins
Left atrium
Which cardiac valve is found at the exit of the right ventricle
Pulmonary semilunar valve
Which cardiac valve is found at the exit of the left ventricle
Aortic semilunar valve
Which cardiac valve is found at the exit of the right atrium
Tricuspid valve
Which cardiac valve is found at the exit of the left atrium
Mitral valve / bicuspid valve
Which cardiac chambers have the thinnest myocardium
Right and left atrium
Which cardiac chamber have the thickest myocardium
Left ventricle
Blood leaving the right atrium is entering…
Right ventricle
Blood entering the aorta is leaving the…
Left ventricle
Blood entering the pulmonary trunk is leaving the…
Right ventricle
Blood leaving the left ventricle is entering the…
Aorta
Blood leaving the vena cava is entering the…
Right atrium
Blood leaving the pulmonary veins is entering the…
Left atrium
Blood supply to the myocardium is through which system
Coronary circulation
Blood is supplied to the body tissues through which system
systemic circulation
Blood is oxygenated through which system
Pulmonary circulation
A swollen left axillary lymph node may indicate an infection in which limb
Left forelimb
A swollen right inguinal lymph node may indicate an infection in which limb
Right hind limb
Which heart sounds represents the closing of the AV valves
The first sound (lub), the louder sound, marks the beginning of ventricular systole
What heart sound represents the closing of semilunar valves
The second sound (dub), marks the beginning or ventricular systole
What is the cardiac skeleton
The fibrous connective tissue that allows for separate atrial and ventricular contractions
What is myocardial contraction initiated by
the sino-atrial node, by “leaky” cell membranes
What controls the myocardial contraction rate
The autonomic nervous system
The effect of the sympathetic nervous system on the heart
Is excitatory, increases conduction rate, increases strength of ventricular contraction
What effects the parasympathetic nervous system on the heart
Decreases the strength of ventricular contraction, is inhibitory, decrease heart rate
What are the conductive fibers in the ventricular myocardium
Purkinje fibers
Arterial blood pressure increased and decreased by what
Is increased by increased peripheral resistance, is decreased by decreased blood volume, is increased by increased ADH
Note 
Flashcards (39)