Features Of Human Anatomy

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What is anatomy
Anatomy is the biological structure of every living organism
What is physiology
Physiology is the science features of the human body human body is made up of biological systems. That create the composite structure of a human being. Circulatory system system has three sub-systems, heart, lungs and arteries/veins, portal vessels system. The main functions are To convey oxygen, carbon dioxide, blood, growth body hormones and nutrients around the body .
Aorta
largest artery in the body, made up of three layers the intima, the media and the adventitia. It takes blood away from the heart to the organs, via the hearts muscular pumping chamber in the left ventricle. This pumps blood into the aorta through the aortic valve.
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Arteries take oxygenated blood away from the heart to cells, veins take blood through the super vena cava which is low in oxygen to the heart
Digestive system system regulates what you put into your body. Taking out the rich nutrients, minerals, vitamins and chemicals, then transporting these to the correct body parts. It also excretes the waste products in the format of urine, excrement and sweat. gastrointestinal tract.
Enzymes in the saliva break down starches. This makes the food easy to digest, vital nutrients are absorbed through the capillaries in your inner cheek. This is why it's important to chew your food pharynx main function is to determine whether food or oxygen is going in the windpipe. This is where a small layer of skin called the epiglottis sits. This seals of the windpipe when eating, preventing you from inhaling food
Oesophagus
joins the pharynk to the stomach ,the lower oesophagus sphincter a ring like muscle, opens up to let food into the stomach. It also stays closed to prevent food retuning from the stomach.
Stomach
stomach. Once in the stomach, peristalsis ensures that the food mixes with digestive juices
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Here it gets broken down even further in the duodenum this is the first part of the lower intestine then u have the jejunum and ileum
Large intestine
Where u have the appendix, cecum, and colon, Here the waste products consist of undigested food, foreign matter, water and old cells from the gastrointestinal tract .the large intestine converts the liquid state to a solid state called stools. peristalsis pushes this towards the rectum
Rectum
where it is stored until u go toilet and it is deposited out of the anus, During bowel movement.
The respiratory system
The respiratory systems primary functions is to inhale oxygen into the lungs, exhale carbon dioxide out. nasal cavity main route for oxygen to enter the body. More effective than the mouth which has no protection and does not warm the air. The nose is made of bone cartilage with a mucus membrane and nostril hairs to filter out any foreign particles like dust.
Pharynx
pharynk sits in the back region of the nasal cavity, The pharynk muscles contain four layers the external, superior, middle and the inferior constrictor muscles. The main function of the pharynk is to determine whether food or air are passing through.

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