Essay on Kidney and Main Body Systems

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P3 outline the gross structure of all the main body systems
The table below shows the names of body systems with the organs, which they ar e composed of. These organs work together to keep each body system functioning. Display the gross structure of each body system, and then write a few lines explaining its main function.
Cardiovascular system
(composed of: inferior and superior vena cava, pulmonary arteries and veins, heart and aorta)
Function
The cardiovascular system has three major functions: transportation of materials, protection from pathogens, and regulation of the body’s homeostasis. •Transportation: The cardiovascular system transports blood to almost all of the body’s tissues. Protection: The cardiovascular system protects the body through its white blood cells. Regulation: The cardiovascular system is instrumental in the body’s ability to maintain homeostatic control of several internal conditions.
Diagram
Respiratory system
(composed of: nasal cavity, larynx, trachea, lungs, pharynx, bronchus and diaphragm)
Function
The primary organs of the respiratory system are lungs, which function to take in oxygen and expel carbon dioxide as we breathe. Red blood cells collect the oxygen from the lungs and carry it to the parts of the body where it is needed. During the process, the red blood cells collect the carbon dioxide and transport it back to the lungs, where it leaves the body when we exhale.
Diagram
Endocrine system
(composed of: pituitary, pineal, adrenal and thyroid glands as well as pancreas, testis and ovaries)
Function
The endocrine system is made of eight major glands, which are groups of cells that produce and secrete chemicals. A gland selects and removes materials from the blood, processes them, and secretes the finished chemical product for use somewhere in the body. Almost every organ and cell in the body is affected by the endocrine system.

Diagram

Urinary system
(composed of: kidneys, ureter, bladder, urethra, and renal veins and arteries)
Function
Two kidneys - a pair of purplish-brown organs located below the ribs toward the middle of the back. Their function is to: remove liquid waste from the blood in the form of urine.
Keep a stable balance of salts and other substances in the blood.
Produce erythropoietin, a
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