Nutrition And Digestion Flashcards
What is a sphincter
Strong muscles that stops acid from leaving stomach. Also controls what goes in and out of stomach.
Structure and function of the stomach
A muscular sac that excretes hydrochloric acid and pepsin. Has a mucus layer to protect from stomach acid.
What are the names of the sphincters
Anal sphincter Odi sphincter Pyloric sphincter Esophageal sphincter (AKA Cardiac sphincter) Auodenal sphincter
Name the different muscles of the stomach (other than sphincters)
Longitudinal, circular, oblique muscles
What makes pepsin special
Pepsin is only enzyme that works in an acidic environment
What are the different parts of the small intestine
Duodenum
Jejunum
Ileum
What is the duodenum
80% of break down done in duodenum. First part of small intestine
What is the the jejunum
The jejunum is in the middle of the small intestine
What is the ileum
The ileum is the final part of the small intestine
What is the main purpose of the large intestine (colon)
The re absorption of water
What is the last part of the large intestine
Caecum
Do humans have a use for an appendix
Humans have no use for an appendix
What are the different parts of the large intestine
Ascending colon Right flexture Transverse colon Left colic flexture Descending colon Sigmad colon Retum Anal canal
What gets absorbed in large intestine
Water
Where are vitamins produced
Large intestine
What form are digestion enzymes
Liquid form
What does bacteria do in large intestine
Bacteria dissolves the non digested nutrients
What are accessory organs
Organs that help with digestion
Name the accessory organs
Liver
Pancreas
Common bile duct
Gall bladder
What does a liver do
To purify toxic materials
What does a pancreas do
Produces digestive enzymes
Also produces incline
What does incline do
Metabolizes sugar
What does a common bile duct do
Filters blood
Produces bile
What does bile do
Bile breaks down oil
What does a gull bladder do
If stores bile
Are nutrients necessary to the human body
Yes
What is a nutrient
Any chemical element or compound that is essential for normal growth, functioning, maintenance, and reproduction of an organism
How many major nutrient groups exist
6
7 if you count fiber
What are the 2 ways of classifying nutrients
Those are that provide energy
Those that support metabolic processes in our body