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Organs in the Human Body
Transcript of Organs in the Human Body
The Excretory System
KIDNEYS: Filter waste from the blood and produce urine
URETERS: Take urine from the kidney to the bladder
BLADDER: Holds urine until you get rid of it
URETHRA: Carries urine from the bladder out of the body when you urinate
The Digestive System
MOUTH: Where digestion starts. Teeth mechanically breakdown food by chewing and saliva is added to start chemical breakdown.
ESOPHAGUS: A long tube that connects the mouth to your stomach. Food travels down it into the stomach.
STOMACH: Churns food into liquid, and adds hydrochloric acid to breakdown the food.
PANCREAS: Produces digestive enzymes to breakdown fat, proteins, and starches.
LIVER: Filters toxins that get into the blood, and makes chemicals like bile that are important for metabolism.
SMALL INTESTINE: Absorbs usable nutrients from food and sends them to your bloodstream by villi.
LARGE INTESTINE: Absorbs water from food into the bloodstream and prepares undigested food for elimination.
RECTUM: Holds solid waste before it is excreted from the body.
The Respiratory System
TRACHEA: The "windpipe" that connects the throat to the bronchi. Made of cartilage which protect it from collapsing.
BRONCHI: The passages that direct air into the lungs (there are two main ones for each lung).
LUNGS: Main organs of the system. Absorb oxygen from the air and release carbon dioxide into/from your body. Expand and contract when you breathe.
ALVEOLI: Tiny sac-like air spaces that create a huge surface area in the lungs for exchange of gases. They take carbon diozide from blood from the heart and give it oxygen.
The Circulatory System
HEART: Muscular organ that pumps blood to all parts of your body for them to use the nutrients in it. Has four chambers: right/left atrium and right/left ventricle, and four valves. Main organ of the circulatory system-very efficient, and never stops!
LUNGS: Get rid of carbon dioxide in blood, and replace it with fresh oxygen so the blood can carry that to the rest of the body through capillaries.
BLOOD: Functions in carrying carbon dioxide and oxygen, nutrients, and waste around the body.
BLOOD VESSELS: Tubes all around your body that carry blood around your body. Arteries, veins, and capillaries are all blood vessels that carry blood away from/to the heart, or let nutrients/gas pass through to blood.
By Angela Liu
All of the organs and organ systems in your body depend on each other to make sure you survive. Each of your organs has a specific job to do, which help that organ system work together to an even bigger job for your body. All of your organ systems work together, and depend on each other for different things to do their jobs.
For example, your respiratory system brings in oxygen and lets out carbon dioxide. Oxygen is sent to your body by the circulatory system and carbon dioxide is let out. The digestive system absorbs nutrients from food which are sent to the blood. The excretory system gets rid of waste made from digestion cleans the blood (circulatory system).