Digestive System

What are the three main functions of the digestive system?

1. Brakes down food into molecules so that the body can use the food 2. Blood absorbs molecules to be carried around 3. Eliminates Waste

List the 6 steps to digestion.

1. Indigestion: take food in to the mouth 2. Propulsion: the food moves into the alimentary canal 3. Mechanical digestion: breaking, crushing, and mashing food by enzymes for chemical digestion 4. Chemical digestion: enzymes breakdown food into basic components 5. Absorption: small intestine is in charge of the process of absorption 6. Defecation: eliminates indigestible waste from the body

What is the order that the chyme goes through when leaving the stomach.

1. Mouth 2. Esophagus 3. Stomach 4. Small intestine 5. Large intestine 6. Rectum 7. Anus

How long does it take for your food to make an entire journey around the whole body?

24 hours.

What is mechanical digestion?

Break, crush, and mash food.

Villi

Finger like projections that cover the outside of an intestine. It contains nutrient-absorbing cells.

What is the function of the large intestine?

It absorbs water from the soupy food and turns it into feces.

Nephrons function and structure?

It filters blood and cleans the blood in kidneys. It is inside the kidney.

What is the accessory organ (digestive organ)? Example?

It helps the MAIN digestive organs. An example would be teeth, tongue, salivary glands, liver. Food never passes through these.

What is the alimentary canal (digestive organ)? Example?

It is a continuous muscle tube that goes through the whole body (digestive tract) An example would be mouth, esophagus, stomach, small intestine, large intestine. They digest and absorb nutrients.

How does the mouth preform chemical and mechanical digestion?

It is because mechanical digestion is your teeth (mashes food) and chemical digestion is your saliva (makes food slippery so that it can go down your throat)

How does the stomach preform both mechanical and chemical digestion?

It is because the chemical digestion is the pepsin in your stomach, and the mechanical digestion is the three layers of smooth skin in your stomach.

Why is it important to release chyme slowly from the stomach?

It prevents hurting your intestines.

What are the two functions of the small intestine? Does villi aid in these functions?

The functions of the small intestines are absorption. The villi does aid in these functions because they increase the surface of the intestine so that it causes more absorption. It absorbs nutrients.

Gallbladder function and structure?

The gall bladder stores bile that the liver makes. It is inside the liver.

Kidneys function and structure?

The kidneys are organs that make 2,000 liters of blood a day. There are two of them.

large intestine function and structure?

The large intestine's function is to receive the soupy digestion and take out the water and turn it into feces. It is next to the small intestine.

How does the gallbladder relate to the liver?

The liver makes bile, and the gallbladder stores the bile.

What are three functions of the liver

The liver makes bile, stores nutrients not needed by the body at that moment, and filters blood.

Liver function and structure?

The liver's function is make bile, filter blood, store nutrients that the body doesn't need at that moment. It is next to the esophagus and above the gallbladder.

Pancreas function and structure?

The pancreas makes pancreas fluid that flows through the small intestine. It is between the liver and the stomach

Small intestine function and structure?

The small intestines function is absorption. It is above the rectum.

How are mechanical and chemical digestion different?

They are different because mechanical digestion physically breaks down food (crushed food) and chemical digestion breaks down food chemically (enzymes)

How are mechanical and chemical digestion similar?

They are similar because they both crush food.

Describe three functions of the pancreas?

They create pancreas fluids that go into the small intestine, and they make hormones that regulate a person's blood sugar level. Make insulin and glucagon.

What are two things that can happen to nutrients once they are broken down?

They get absorbed in the body and travel or they they get stored.

What is chemical digestion?

enzymes break food into basic components