Digestive System
This organ is where digestion begins and where food is chewed.
The mouth
This organ pumps blood around the body.
The heart
What is the main job of the lungs?
To take in oxygen and remove carbon dioxide.
What is the main job of the testes?
To produce sperm cells.
What is one main job of the skeleton?
To support and protect the body.
This tube carries food from the mouth to the stomach.
The esophagus
Name the three main types of blood vessels.
Arteries, Veins and Capillaries
What does the trachea do?
Carries air to and from the lungs.
What is the main job of the ovaries?
To produce egg cells.
What do muscles do to help the body move?
They contract and pull on bones.
Where in the body is the stomach located?
In the upper abdomen, below the ribs.
Where in the body is the heart located?
In the chest, slightly left of centre.
What are the two tubes called that branch from the trachea into the lungs?
The bronchi
What is the main function of the uterus?
It is where a baby can develop during pregnancy.
The elbow and knee are examples of this type of joint, which mainly allows movement back and forth.
What is a hinge joint?
What does the small intestine do in the digestive system?
It absorbs nutrients from digested food into the blood.
What are the four chambers of the heart called?
Right atrium, left atrium, right ventricle, left ventricle.
These tiny air sacs are where gas exchange occurs. What are they called?
Alveoli
What is the name of the tube that carries an egg from the ovary toward the uterus?
The fallopian tube / oviduct
What is the difference between a tendon and a ligament?
Tendons connect muscle to bone; ligaments connect bone to bone.
What does the liver do to help digestion?
It produces bile, which helps break down fats.
What is the difference between what the atria and ventricles do?
The atria receive blood into the heart; the ventricles pump blood out of the heart.
Explain what happens to oxygen and carbon dioxide during gas exchange in the alveoli.
Oxygen moves into the blood, while carbon dioxide moves from the blood into the alveoli to be breathed out.
In humans, where does fertilisation usually occur?
In the fallopian tube / oviduct.
Explain how muscles and bones work together to move a joint.
Muscles contract and pull on bones, causing movement at the joint.