Digestive System
What is the main organ of the digestive system?
The stomach
How many chambers does the human heart have?
It has 4 chambers
Where does gas exchange occur in the human body?
The Lungs
What connects the digestive system to the circulatory system?
Nutrients absorbed by digestion enter the bloodstream
How do frogs and worms breath?
Through their skin
What is the role of a red blood cell?
to carry oxygen and nutrients around the body
What gas do we breath in and what gas to we breath out?
In - oxygen
Out - carbon dioxide
The stomach is protected from acid by?
a protective lining
Fish do not breath with lungs. They use which organ?
Gills.
What organ helps store bile in the digestive system?
Gall bladder
Which blood vessel carries oxygenated blood and which carries de-oxygenated blood
Veins - de-oxygenated
Arteries- oxygenated
The organ that branches into both lungs?
the bronchus
The four major types of tissue that animals have?
Epithelial
Connective
Muscle
the crop
Where does most water absorption occur in the digestive system?
What is the organ that serves as the main exit from the heart?
The aorta
the organ that is responsible for air being sucked in and blown out?
the diaphragm
What connects the respiratory system to the circulatory system?
Capillaries on the alveoli
Worms do not have a stomach. Instead they have a?
Gizzard
What is the chemical in your mouth that helps chemically breakdown food?
Saliva
What is the name of the blood vessel that is very thin (one cell thick) that covers the alveoli
Capillaries
What in the lungs allows for gas exchange?
Alveoli in contact with capillaries
Jason has Crohn’s Disease. During a flare up, sores form in his small intestine and take a long time to heal. He gets very tired and loses some weight.
What systems are involved?
Digestive, Circulatory
What is this equation? What does it show?
Glucose + oxygen → carbon dioxide + water + ATP (energy)
Cellular respiration. Shows how glucose and oxygen are needed for energy production