Which side of the heart does pulmonary circulation ?
done by the right side of the heart
Which side of the heart does systemic circulation ?
the left side of the heart
what is the flow of the heart
from the inferior and superior vena cava deoxygenated blood from the head and comes into the right atrium and ventricle.
right ventricle to both the lungs through pulmonary trunk
oxygenated blood is then return to the left artium then ventrivle
ventricle to the aortic trunk ( the aorta) then to the body and head.
what valve connect the right atrium and the right ventricle
the tricuspid valve
what valve connect the left atrium and the left ventricle
the mitral valve/ bicuspid valve
what are the semilunar valves?
the prevent back flow of the blood from the aortic trunk into the left ventricle
what prevents the backflow of blood from the aorta to the left ventricle ?
the semilunar value
what is the of the chordinae tendonae
hold valves down
what are the papillary muscles?
these are muscle from the wall of the heart
that hold the chorda tendinaee so the valve does not flt backwards,
what is the membranous septum?why is it important?
because it seals of the left and right chamber of the heart and prevents the blood from mixing
it is clinical correlation is that some people have deformities in this membrane and the deoxygenated & oxygenate blood getting mixed together
what happens during diastole?
the mitral and bicuspid valves are open and the heart is filling with blood
the semilunar are closed
the pressure in the heart is increasing
what happens during systole?
the mitral and bicuspid are closed
the semi lunar valves are open
where is the anatomical positioning of the pulmonary trunk?
anterior of the heart
where is the anatomical positioning of the aortic trunk?
more posterior to the heart
what is Situs inversus?
When all many organs of the body or formed backwards . for example the heart would be on the right side and the liver would be on the left side
what are the pectulate muscles?
they are found in the right artium
pectilate means feather like
Means ending crest
located on the wall of the right atrium at it borders
what is the fossa ovalis?
left over embryonic remnant in the heart
drains all the blood inside the heart into the right atrium
a septomargino trabucula in the right ventricle
that connects the papillary muscles to the septum(wall)
inside this band are fibers that control the beating of the heart
it is a fiber.
Trabecula carnea ?
the rough inner surface of the right ventricle
why are the wall of the left ventricle so thick?
It has to pump the blood into the systemic portion of the body "all the way to your toes"
it is strong
right coronary artery braching
decending and marinal branch
left coronary artery branching
anterior interverticular descending
which branch of the coronary supplies the sinoartial nodes?
the right coronary supplies and had a branch for the sinoatrial nodal
what kind of vessel is the coronary sinus?
where does the coronary sinus drain?
drains into right atrium
what veins are on the posterior aspect of the heart ?
from left to right
left posterior ventricular
what veins are on the anterior aspect of the heart ?
what vein turns into the coronary sinus?
what is special about the blood suppply to the lungs ( in regards to arteries and veins)?
Pulmonary veins carry oxygenated blood away from the heartto the lungs
Pulmonary arteries carry deoxygenated blood towards the heart away from the lungs
this is different than what we normally find.
Where is the sinatrial node and atriventricular node?
right atrium wall
what vein nerve loops under the aorta of the mediastium ?
The vagus nerve where it branches into the another nerve ...
what does the medioastium contain ?
vessels of the heart
connect the pulmonary artery to the aorta
in babies this was a vessel but it is just a ligament in adults
where does the lympathic system system in the posterior medisastium drain?
into the jugular and the subclavian vein
what is the azygos vein?
only located on the right side of the body
it drains all the right and then it drains into the superior vena cave
it also has connected veins called the hemiazygos and the accessory hemiazygos ( onthe left)
what is the recurrent laryngeal nerve?
branch of the vagus nerve that innervated the larynx
Functional anatomy of the heart