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Which of the following of the conduction system of the heart is a pacemaker?

Which of the following is a distributive function of blood?

Repetitive contraction and relaxation of heart chambers are called ________ and _______.

The cardiac output (CO) is calculated as ________.

Three structural types of capillaries are continuous, fenestrated, and ____________.

Which of the following does NOT assist in returning the blood to the heart through the veins?

When a presence of one hormone enables another hormone to act, we call it

What is meant by the “pulmonary circulation”? The flow of blood:

Which of the following does NOT assist in returning the blood to the heart through the veins?

Repetitive contraction and relaxation of heart chambers are called ________ and _______.