Phoenix bio/101 structure and functions of organs paper
The main organs found in the organism, Homo sapiens (human), are comprised of a complex and dynamic system. These organs contribute to the functioning of the body as whole, allowing us to sustain life.
The digestive system is an important organ that processes food for use by other parts of our bodies. The mouth is responsible for mastication and digestion begins with saliva breaking down starches into simpler sugars. This process continues through the esophagus and stomach where further breakdown occurs aided by hydrochloric acid and enzymes secreted from the stomach lining. After passing through these two organs, the contents travel to the small intestine where vitamins, minerals, proteins, carbohydrates and fats are absorbed into circulation with help from bile produced by gall bladder and pancreatic juices which also aid in digestion. Finally, waste products pass through large intestine before being expelled as feces via anus.
The respiratory system provides oxygenation to cells while simultaneously expelling carbon dioxide as well as water vapor during respiration; it consists mainly of trachea, epiglottis (prevents foreign objects entering lungs) bronchioles which divide further into smaller air sacs known as alveoli where gas exchange between blood capillaries happen.
The cardiovascular system circulates both nutrients and hormones between tissue cells along with oxygenated blood collected from pulmonary veins; it consists mainly of heart (pumps blood), major arteries/veins (carrying material either away or towards heart) , lymphatic vessels(returns interstitial fluid back to vessels)and capillaries (allow for diffusion).
Finally urinary systems help maintain electrolyte balance within body composed mostly ureters that transport urine from kidneys to urinary bladder which stores them until excreted via urethra . Kidney filters out waste products like creatinine nitrogenous compounds helping preserve homeostasis throughout body along with acting endocrine role releasing renin angiotensin hormone involved in controlling BP.