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The Human Body

by: Myrissa Webb

The Human Body ntri 2000

Marketplace > Auburn University > ntri 2000 > The Human Body
Myrissa Webb
GPA 4.0

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Lecture on 9/6/16
Dr. Kevin W Huggins
Class Notes
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This 2 page Class Notes was uploaded by Myrissa Webb on Tuesday September 6, 2016. The Class Notes belongs to ntri 2000 at Auburn University taught by Dr. Kevin W Huggins in Fall 2016. Since its upload, it has received 14 views.


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Date Created: 09/06/16
The Human Body Cardiovascular and Lymphatic System Heart and Blood Vessels  Arteries (oxygen rich)  Veins (oxygen poor)  Capillaries (smallest) Systemic Circulation  Blood being pumped in the heart  Blood is red from the red blood cells if you take blood and let it sit out it will separate the red blood cells from the plasma Lymphatic System  Fat digestions  Separate system of vessels Blood Circulation  Arteries: From the heart to the tissues comes from the left part of the heart  Veins: From the tissues to the heart comes from the right part of the heart  Anything leaving the intestine goes through the liver before returning to the heart. The vein between the intestine and the liver is called the Portal Vein  Liver acts as a filter Lymphatic System  Contains lymph  Immune cells  Passage for large particles  Lymph vessels (larger than capillaries)  Fat is too big to go from the intestines into the liver. So it goes into a lymph vessels and bypasses the liver to the heart What happens to the food we eat?  Digestions: Breaking down food and releasing nutrients Mechanical (chewing) and Chemical (acid and enzymes)  Absorption: Taking components of digestion through the intestinal wall into the body  If something cannot be digested it is stuck in the digestive track and will cause problems Digestive System Mouth  Mastication Mechanical digestion  Saliva Enzyme (chemical digestion) Mucus Esophagus  Propels food into the stomach  Epiglottis  Peristalsis (Swallowing begins this)  Lower Esophageal Sphincter  Flap that allows food to enter the stomach Stomach  Mixes, digests, and stores food Holding chamber where good is broken down   Gastric juices  Hydrochloric acid  Enzyme  Formation of Chyme (Chyme: liquefied food)  Staying in average 4hrs  Pyloric Sphincter  Flap that allow food to ender the small intestine  About 1 tsp at a time Small Intestine  Most digestion and absorption takes place here  Folded walls  Villi (finger like)  Absorptive cell  Enterocytes  Absorption Large Intestines  Colon  Indigestive food components  No villi, or enzymes  Absorption of water  Bacteria  Rectum- Elimination Accessory Organs  Gall Bladder  Pancreas  Digestive enzymes  Hormones (Glucagon & Insulin)  Pancreatic juice (bicarbonate  Liver  Bile  Enterohepatic circulation Endocrine System  Secretes regulatory substances, hormones, traveling in your blood  Body's messenger system  Insulin


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