Why are ligaments important?
They stop the bones from pulling apart and dislocating.
What is the name of the bone that protects the brain? What type of joint is found in that bone?
Skull
Fixed or fused joint
What is the name of the organ that is a pump?
Heart
What process in your body needs oxygen? (hint: it produces energy)
Respiration
What side effect does taking too much paracetamol (panadol) have on the body?
It can cause liver damage
Look at these thermal images. The hot areas of the body are red. Which image shows someone swimming?
D
What type of joint is found in your shoulder?
Ball and socket joint
What is found in your blood?
Red blood cells
White blood cells
Platelets
Plasma
In what process does oxygen enter the lungs and carbon dioxide leave the lungs?
Gas exchange
What is a side effect?
Side effects are when drugs do something else as well as the effect they are supposed to have.
What does antagonistic pair mean?
One muscle pulls the bone one way, and the paired muscle pulls it back again
Give one example of a hinge joint
Elbow
Knees
Fingers
Toes
What is plasma of your blood primarily made of?
Water
What happens to the diaphragm and ribs during inhalation?
The diaphragm contracts and moves down.
The ribs move up and out.
What are some medical uses for drugs?
Relieve pain (e.g., paracetamol)
Reduce swelling (e.g., ibuprofen)
Relax muscles (e.g., salbutamol for asthma)
Act as decongestants (e.g., vicks, sudafed)
When you bend your arm which muscle contracts and which one relaxes?
Biceps contract
Triceps relax
What are three reasons we need a skeleton?
Protection
Support
Movement
Which blood vessel carry blood away from your heart and to all the organs of your body?
Arteries
Gas exchange occurs in the lungs. What is the name of the gas that leaves the lungs and goes into the blood?
Oxygen
How does taking drugs affect our movement?
Drugs can change the speed of the reaction.
Explain how the brain controls the contractions of muscles in your arm.
The brain sends electrical impulses down the spinal cord and to the nerve which then passes the impulse into the muscle resulting in the muscles contraction.
Explain why bones in the leg are not made out of solid bone.
It would be too heavy/Lighter bones are easier to move.
What are two adaptations of the red blood cells?
Flattened shape
Flexible
Filled with heamoglobin
No nucleus
Why is oxygen important for our cells?
Provides oxygen for respiration
What is the difference between stimulants and depressants?
Stimulants - Increases alertness, helps people feel awake
Depressants - Helps people to relax, sleep, may ease shock