Anatomy

Question 1

Regions of the right atrium

Answer 1

○ Musculi pectinati
		§ ridges
	○ Sinus venarum
		§ smooth
	○ Crista terminalis
                 Junction between the two
Coronary Sinus and fossa ovale

Question 2

Regions of the right venticle

Answer 2

Ridges called tribeculae carnea, that thicken to form pappillae muscles and attach to chordae tinidae that attach valve leaflets. There is a region that exits as the pulmonary artery known as the conus arteriosus or infundibulum

Question 3

Left atrium and ventricle

Answer 3

Left ventricle has the thickest wall of all, they have tribeculae carnae that also form pipillary muscles yet only two and chordae tindinae that attach to the mitral valve. The left atrium is a smooth chamber with four opening for the four pulmonary veins that enters

Question 4

Describe the fibrocartilage skeleton of the heart

Answer 4

it anchors the atrial and ventricular muscle masses and electrically isolates them and provides attachment for the base of each valve cusp. The fibrous skeleton is made up of a figure of 8, conjoined rings around the valves and 2 coronets around the arteries. Helps to seperate electrical signals from ventricles and atrium to ensure appropriate and sequential contraction

Question 5

How do you measure Right Atrium and Ventricle End Diastolic Pressure

Answer 5

Measure the JVP

Question 6

How do you measure Left Atrium and Ventricle End Diastolic Pressure

Answer 6

Pulmonary Artery Wedge Pressure