Muscles

Question 1

what are the three muscle types and are they voluntary or not

Answer 1

cardiac involuntary, smooth involuntary, skeletal voluntary

Question 2

what is the origin and insertion point of tendons

Answer 2

origin is on the most stationary bone and the insertion is on the most movable bone

Question 3

what is contraction and relaxation

Answer 3

contraction is where the tension in the muscle fibres increase making them shorter and tighter, and relaxation is where tension in the muscle fibres decreases, making them longer and looser

Question 4

what are the three types of skeletal muscles and what do they do

Answer 4

agonists they provide the main force that causes a particular movement, antagonists they oppose the main force that causes a particular movement, stabilisers they support the movement by prompting the movement or reducing unnecessary movement

Question 5

what is isotonic

Answer 5

the muscle fibres produce tension as they move (lengthen or shorten) across the joint

Question 6

what is isometric

Answer 6

The muscle fibres produce tension but do not move around the joint

Question 7

describe the three stages of a bicep curl

Answer 7

isotonic contraction
- muscle contracts - concentric isotonic contraction
- muscle elongates - eccentric isotonic contraction

isometric contraction
- isometric contraction