The heart is a pump, and the blood goes round, and round, and round all the time. And why does it do that? Why can't it just have a rest? Well, the blood has to be kept moving around all the time ...
There are three types of blood vessel: arteries, veins and capillaries. The heart is a muscular organ that pumps blood around your circulatory system. The circulatory system is the heart and all ...
The metabolic activity of any tissue is limited by its blood supply; the more active any organ, the more blood it needs and the more extensive its vascularization. The changes in metabolic activity ...
Substances required in the metabolism of plant cells not only travel up from the roots but also move about in other ways. This circulation has recently been clarified by experiments using ...
Bring books that might help you, if you wish (vertebrate, animal physiology, etc). Handouts for next week will be given to you at the beginning of the lab session. Lab exam three weeks today - sample ...