Blood Clotting Blood clotting is an important process; it prevents excess blood loss, the entry of pathogens, and provides a barrier, or scab, under which wound healing can occur A break in the muc...
Atherosclerosis There are a number of diseases of the heart, or cardiovascular diseases, that can affect blood vessels in different ways Atherosclerosis,?also known as hardening of the arteries, is...
Investigating Heart Rate There are a wide range of factors that influence the?heart rate?of an organism Experiments can be designed to?investigate the effect of a named variable on an organism's he...
Cardiac Cycle The?cardiac cycle?is the series of events that take place in?one heart beat, including?muscle contraction?and?relaxation The contraction of the heart is called?systole, while the rela...
雙十一狂歡又又又又又來了 衷心感謝各位家長(zhǎng)及同學(xué) 對(duì)翰林一如既往的大力支持！ 年末鉅惠，課程大戰(zhàn)即將打響！ 錯(cuò)過這次再等一年 那福利你沖不沖？沖！沖！沖！ 翰林雙十一狂歡時(shí)間 2022年11月3日-11月15日 1報(bào)名...
Blood Vessels: Structure & Function The body contains several different types of blood vessel Arteries: transport blood away from the heart, usually at high pressure, to the tissues Remember;?a...
Mammalian Heart: Structure & Function Circulatory systems are systems which?transport fluids?containing materials needed by the organism, as well as waste materials that need to be removed Circ...
The Importance of Water in Transport Water is the medium in which all metabolic reactions take place in cells and in which all substances are transported around the body Water is composed of atoms ...
The Need for a Circulatory System The cells of all living organisms need a?constant supply of reactants?for metabolism, e.g. oxygen and glucose Single-celled organisms can gain oxygen and glucose d...
