Digestive system Flashcards
Learn about the digestive system parts and functions
It refers to the process of breaking down foods into smaller substances so they can be easily absorbed by the body.
Digestion
What are the two types of digestion?
Mechanical and Chemical
Where does the first stage of digestion start?
Mouth
This is responsible for mastication
Teeth
Perceives taste and helps mix food with saliva
Tongue
This releases enzymes called salivary amylase
Salivary Glands
Where food and air pass?
Pharynx
This is where air passages
Larynx
What is the structure above the pharynx?
Epiglottis
It is 25 cm long and contracts in a wave-like motion process called Peristalsis
Esophagus
What do you call the wave-like motion process of the Esophagus?
Peristalsis
J-shaped muscle that secretes and holds gastric juices
Stomach
It is part of the gastric juices that eliminates microorganisms and softens fibrous foods
Hydrochloric Acid
An example of it is Renin and Pepsin
Digestive Enzymes
When food is mixed with gastric juices, it is called?
Chyme
It is 7-8 meters long and 4 cm wide and divided into three parts
Small Intestine
What are the three parts of the small intestine?
Duodenum, Ileum, Jejunum
It is part of the small intestine that neutralizes acidic chyme
Duodenum
Two parts in the small intestine that help absorb nutrients
Ileum and Jejunum
Is 2 meters long and 7 cm wide and is divided into three parts
Large intestine
What are the three parts of the large intestine?
Cecum, Colon, Rectum
What does the Large intestine reabsorb?
Water and salts
No digestion happens in this organ
Large Intestine
Where does the undigested food pass?
Anus