Your venous system is a network of veins that carry blood back to your heart from other organs. We’ll explain the basic structure of a vein before diving into different types of veins and their ...

Your circulatory system contains three blood vessel types: arteries, veins, and capillaries. ... The systemic circuit supplies the organs and tissues of the body with oxygen and other nutrients.

The systemic arteries transport oxygen-rich blood from the left ventricle to the rest of the body. ... The system makes up a closed circuit of vessels that transport blood around the body.

Heart has completely separated: 2 atria, 2 ventricles, 4 chambers, and adult bird has complete double circulation: low-pressure pulmonary circuit using the right side of the heart and a high-pressure ...

Free interactive and download to print GCSE Biology flashcards to help prepare for your GCSE exams. Revise topics such as animal organisation - gaseous exchange systems, digestion, transport ...

Heart has completely separated: 2 atria, 2 ventricles, 4 chambers, and adult bird has complete double circulation: low-pressure pulmonary circuit using the right side of the heart and a high-pressure ...