Please enable JavaScript.
Coggle requires JavaScript to display documents.
9-Transport in animals - Coggle Diagram
9-Transport in animals
the circulatory sistem
it is the main transport system of all mammals, including humans
it transport oxygenated blood to all parts of the body and then it brings back deoxygenated blood to the lungs
can be double or single
double for mammals, birds and reptiles
it is much faster thanks to less pressure lost, so very metabolically active organisms use it
-
-
-
the heart
-
it is divided into four chambers, two upper atria and two lower ventricles
walls are thicker in ventricles than in atria, especially in the left ventricle
-
the left atrium receives blood from the lungs, the right atrium from the body;
the left ventricle sends blood to the body trough the aorta, the right one to the lungs through the pulmonary artery
it is covered in coronary arteries, which supply nutrients directly to the muscles, which require lots of energy
cholesterol build-ups can block them, leading to damage and death
-
-
-
blood
it is divided into the liquid part (plasma) and solid part (red blood cells, white blood cells, platelets)
plasma
-
it mainly carries glucose, amino acids, mineral ions, hormones and waste products
red blood cells
-
they do not have a nucleus or mitochondria and they have a biconcave shape, which means there is more surface to transport oxygen
they are very small, so they can fit in even the smallest capillaries
-
-