A - Vessels serving the head and upper limbs
B - Vessels serving the body trunk and lower limbs
C - Vessels serving the viscera
D - Pulmonary Circulation
E - Pulmonary "Pump"
F - Systemic "Pump"
Explanation:
Please find the labelled diagram attached with the post.
From the right atrium through the tricuspid valve to the <u>right ventricle </u> through the <u>pulmonary semilunar </u> valve to the pulmonary trunk to the right and left <u>pulmonary arteries,</u> to the capillary beds of the <u>lungs</u>, to the <u>pulmonary veins</u>, to the <u>left atrium</u> of the heart through the <u>bicuspid (mitral)</u> valve, to the<u> left ventricle</u> through the <u>aortic</u> semilunar valve, to the <u>aorta</u>, to the systemic arteries, to the <u>capillaries</u> of the body tissues, to the systemic veins, to the <u>superior vena cava</u> and <u>inferior vena cava</u>, which enter the right atrium of the heart.