the muscular system

Question 1

what are the 3 different kinds of muscles, name an example for each

Answer 1

skeletal muscle - attached to bones and works when you want it to (biceps)
smooth muscle- found in the walls of your internal organs and works on its own (heart)
cardiac muscle - special involuntary muscle that forms on the walls of your heart. works non stop without tiring

Question 2

difference between slow twitch fibres and fast twitch fibres

Answer 2

slow twitch fibres contract slowly and without much force they do not tire easily

fast twitch fibres contract much faster and with much more force and they tire quickly

Question 3

muscles working in pairs

Answer 3

called anagonistc muscle action. working muscle is called prime mover

Question 4

origin and insertion

Answer 4

when a muscle contracts, one bone moves the other is stationary, origin is where the muscle joins the stationary bone. insertion is where it joins the moving bone

Question 5

how muscles and movement works

Answer 5

voluntary muscle works across a joint. its attached to both bones by tendon. when muscle contracts usually one bone moves