biological system


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Systemic
path of blood through the heart Systemic is the most widespread circulatory pathway. It accounts for supply of oxygenated blood to all the parts of the body and collection of deoxygenated blood from the tissues. Path of Blood The left ventricle of the heart opens into a major artery called the aorta. The aorta branches ..
Excretory system
The excretory system is represented by the kidneys, the ureters and the urinary bladder. Kidneys are composed of a large number of functional units called nephrons. Kidneys take up the function of excretion and osmoregulation. The excretory system is closely associated with the ..
Irrigation system
The process of supplying water to crops in the fields by means of canals, reservoirs, wells, river valley systems and river lift systems is known as irrigati..
Root System
Root is the descending portion of the axis of the plant. It is not normally green in colour. It is characterised by the absence of nodes and internodes. There are two types of root systems, the tap root system (seen in dicots) and fibrous root system (seen in monocots)..
Lymphatic System
components of human lymphatic system Lymphatic System of a Human The lymphatic system is an accessory circulatory system which transports lymph, a fluid similar to plasma from the intercellular spaces of tissues to the blood. It is a one way route for the movement of interstitial fluid to blood. The l..
Root System
Root System - Root is the descending portion of the axis of the plant. It is not normally green in colour. It is characterised by the absence of nodes and internodes. There are two types of root systems, the tap root system (seen in dicots) and fibrous root system..
Nervous system
structure of nervous system in earthworm Nervous system is well developed. It is represented by a nerve ring and a double, ventral nerve cord. The nerve ring is formed by a pair of supra oesophageal ganglia, a pair of suboesophageal ganglia and a pair of circum oesophageal connectives. The nerve cord produces segmental ganglia...
Skeletal system
structure of frog skeletal system Frog, being a typical vertebrate, shows the presence of a skeletal system that forms the internal supporting framework for the body. It can be distinguished into an axial skeleton and an appendicular skeleton. Axial skeleton consists of skull, vertebrae and sternum. Appendicular skeleton ..
Skeletal system
rat skeletal system illustration with parts The skeleton of rat has 223 bones that are distributed into the axial skeleton and the appendicular skeleton. The axial skeleton consists of skull, vertebral column, sternum, ribs and ear ossicles. The appendicular skeleton is represented by girdles and limb bone..
Lymphatic System
The lymphatic system is an accessory circulatory system which transports lymph, a fluid similar to plasma from the intercellular spaces of tissues to the blood. It is a one way route for the movement of interstitial fluid to blood. The lymphatic system can carry ..
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