Title: אופציונלי

Text: For blood flow to occur between any two points in the circulatory system, there must be a difference in the energy level between these two points. Usually, the difference in energy level is reflected by a difference in blood pressure, and the circulatory system generally consists of a high-pressure, high-energy arterial reservoir and a venous pool of low pressure and energy. כל פסקה תהיה מבחן.

Save test: השתמש בזה אם אתה רוצה לשתף את המבחן הזה בהקלדה (רק למשתמשים מאומתים).