Muscle Characteristics

Question 1

What are the 4 muscle characteristics?

Answer 1

Excitability
Contractability
Extendibility
Elasticity

Question 2

Excitability

Answer 2

DR’s muscles ability to respond to a stimulus delivered from a motor neuron

Question 3

Contractibility

Answer 3

DRs muscles ability to contract or shorten

Question 4

Extendibility

Answer 4

DRs muscles capacity to stretch beyond their normal resting length

Question 5

Elasticity

Answer 5

DRs muscles ability to return to its original resting length after it has been stretched

Question 6

What are the two muscles in an antagonist called?

Answer 6

Agonist (Prime mover)(Contracts)
Antagonist (Stabiliser)(Relaxes)

Question 7

Reciprocal Inhibition

Answer 7

The term used to describe the coordinated relaxing of the muscles on one side of a join to pair with the other muscle contracting.

Question 8

Origin

Answer 8

Muscle attachment onto the bone that DOES NOT MOVE when the muscle contracts

Question 9

Insertion

Answer 9

Muscle attachment onto the bone that MOVES when the muscle contracts

Question 10

3 types of muscle contraction

Answer 10

Isometric
Isotonic
Isokinetic

Question 11

Isometric

Answer 11

Muscle produces tension but DOES NOT change length. (Wall sit/Rugby Scrum)

Question 12

Isotonic

Answer 12

Muscle produces tension and changes length, shortening or lengthening.

Question 13

Isotonic Eccentric

Answer 13

Muscle produces tension and lengthens

Question 14

Isotonic Concentric

Answer 14

Muscle produces tension and shortens

Question 15

Isokinetic

Answer 15

The velocity of the muscle contraction remains constant while the length changes. This requires special equipment.