The heart Flashcards
The heart is approximately a size of…
a fist.
Cardiac muscle is…
a type of muscle of which heart is made.
Cardiac muscle is made of…
interconnecting cells, whose cell membranes are tightly joined together. This close contact allows waves of electrical excitation to pass easily.
Aorta is the largest…
artery, arching and branching, leading upwards towards the head and then flowing downwards.
Pulmonary artery takes…
blood away from the heart, branches after leaving the heart.
Venae Cavae brings…
blood from the head and from the rest of the body.
Pulmonary veins bring…
blood back to the left atrium.
Coronary arteries are located on…
the surface of the heart. They branch from the aorta and deliver oxygenated blood to the walls of the heart.
The left side of the heart is completely separated by…
the septum.
Atrioventricular valves are…
valves between atria and ventricles.
Left side valve:
mitral or bicuspid valve.
Right side valve:
tricuspid valve.
Walls of ventricles are…
much thicker, as they need to develop more force when they contract.
Right ventricle has…
thinner wall as it needs to develop lower force.
