With which human organ systems (or human systems) are the following associated ? (i) vena cava (ii) glomerulus (iii) alveoli (iv) villi

With which human organ systems (or human systems) are the following as

1.	With which human organ systems (or human systems) are the following associated ? (i) vena cava (ii) glomerulus (iii) alveoli (iv) villi
Answer» With which human organ systems (or human systems) are the following associated ? (i) vena cava (ii) glomerulus (iii) alveoli (iv) villi