Year 7 Science: Muscles and Bones Flashcards
what connects bones together?
ligaments
how are capillaries well adapted to their function?
they have thin walls so it can exchange cells through the walls
what happens to your muscles when you raise your arm?
the bicep contracts and the tricep relaxes
what is a drug?
a substance that affects the way your body works
z = ?
diaphragm
what does it mean when someone feels like they can’t live without a drug?
they are addicted
what happens to the diaphragm during inhalation?
the muscles of the diaphragm contract, making it move downwards and flatten out.
how are red blood cells well adapted to their function?
1) they have a thin membrane so gases can pass through easily
2) it is small and flexible so it can fit through tiny vessels
what is carried in plasma?
nutrients, proteins and hormones
Miranda’s pulse rate goes up, what does this show?
she needs more oxygen
Miranda went running. What happens to her breathing rate?
It increases (gets faster and heavier)
x = ?
heart
what does P do?
protects the ribs
y = ?
ribs
what does O do?
protects the brain
