Animal Movement Flashcards
Why do we need to move?
- To find food
- Evade predators
Flying has evolved separately at least four times in…
Insects, pterosaurs, birds and bats
What are the functions of a skeleton?
To provide support, protection and movement.
Three types of skeletons are…
Hydrostatic skeletons, exoskeletons, endoskeletons
Hydrostatic skeletons are where…
Fluid is held under pressure in a contained compartment
How do annelids use hydrostatic skeletons to move?
Peristalsis - moving in rhythmic waves in a series of muscle contractions
Hydrostatic skeletons can be found in cnidarians, …
Flatowrms, nematodes and annelids
Exoskeletons are a…
Hard encasement
Exoskeletons can be found in…
Molluscs and arthopods
Endoskeletons are contained…
Within the soft tissue of our bodies
What are the types of joints in the human skeleton?
Ball & socket, hinge and pivot
Why are osteoporosis common in women after menopause?
Because at a low oestrogen state, minerals are being taken from the bones
What are skeletal muscles?
Muscles attached to the skeleton
When muscles come in twos, what are they called?
Antagonistic pairs
What is the sarcomere?
It is the repeating unit of the muscle that contract
