The circulatory system of birds is a striking contrast to the circulatory system of reptiles: it is a complete separation of arterial and venous blood flow.Especially birds is their big heart.And at small birds, the size of the heart more, and palpitations markedly more intense than at large.
Blood pressure greater than doubling of birds reptiles and mammals.This applies to the quantitative content of the blood hemoglobin, the total number of erythrocytes, and sugar content, but also to the oxygen capacity of the blood.The circulatory system of birds has all these features due to the high level of metabolic processes.Big heart and cause rapid pulse accelerated blood circulation system, in conjunction with a high oxygen storage capacity and an increased quantity of sugar and allows immediate intense to saturate all tissues and organs with nutrients and oxygen.This leads to removal of the organs of poultry products resulting from metabolic processes.
heart bird quad consists of 2 atria and 2 ventricles.For major veins, venous blood collected in the right atrium and flows into the right ventricle.Pulmonary artery departs from the right ventricle, and then divided into left and right branches.As it seeks to venous blood to the lungs, where it is oxidized.Further, oxides of arterial blood moving through the veins to the left atrium.The circulatory system of birds has 2 circulation (small and large).Large consists of the left ventricle, the right aortic arch - the main artery from which exit from the heart are separated as two arteries: the right and left nameless.She herself back over the right bronchus along the spine, as the dorsal aorta.Unnamed artery, each in turn, are divided into sleeping, going to the head, and a large subclavian.Subclavian artery is divided into the shoulder, aimed at the wing muscles, and strong thoracic artery extending into the muscle of the sternum.
from large trunks depart visceral dorsal aorta and mesenteric they supply blood to the abdominal muscles, the organs of the pelvic cavity, the hind legs, intestines, stomach.
The circulatory system of birds collects the venous blood from the bird's head in the jugular veins, which together with the vessels merge into the right and left hollow veins draining into the right atrium.From the region of the cloaca, small vein blood was collected, then merged together, forming three large.
circulatory system of insects is not closed circle.Blood does not lie entirely in the muscle capsule attached to the back, all the blood washes and fills the cavity and the spaces between the bodies.
endocrine glands secrete hormones that are contained in the hemolymph (blood) of insects.They are responsible for physiological processes.Because of the blood in the body of an insect creates internal pressure that allows you to spread wings, helps the process of molting, unfolding proboscis supports some types of soft body.
insect circulatory system consists of the heart, combining several steps to reduce the camera.There may be up to 8. The abbreviations blood moves in the body.Its circulation in subordinate bodies is done by pulsing membranes - ampoules, which are in the limbs of the insect.
circulatory system of arthropods also an Open Circle.The internal organs of arthropods found in cavities - sinuses filled with hemolymph, washer internal organs, then it returns to the heart and blood vessels.The circulatory system is the heart of arthropods - the central body (do not have annelids), which is arranged simply.Hemolymph is not involved in the transport of gas, this function is performed trachea.
