Lab 6

Question 1

Active process of generating force; force exerted parallel to muscle fibers

Answer 1

Contraction

Question 2

Force exterted

Answer 2

Tension

Question 3

Force exterted on muscle by weight of an object

Answer 3

Load

Question 4

Muscle changes length resulting in movement

Answer 4

Dynamic action

Question 5

Muscle tension exceeds load resulting in muscle shortening

Answer 5

Concentric

Question 6

Load exceeds muscle tension resulting in muscle lengthening

Answer 6

Eccentric

Question 7

Mechanical response of muscle to single action potential

Answer 7

Twitch

Question 8

Once a muscle is stimulated, the period before tension begins to develop

Answer 8

Latent period

Question 9

Start of tension development to peak of tension

Answer 9

Contraction time

Question 10

Time of peak until tension decreased to zero

Answer 10

Relaxation time

Question 11

Increasing rapidity of contraction of individual motor units

Answer 11

Twitch/ wave summination

Question 12

Increasing number of motor units by contracting simultaneously

Answer 12

Motor unit summination

Question 13

Muscle response where receptivitie stimulation at sufficent rapid frequency produces sustained maximal contraction

Answer 13

Tetanus

Question 14

Passive elastic properties of muscle

Answer 14

Parallel and series elastic movements

Question 15

Longer muscle lengths extensive connective tissue within muscle becomes stretched

Answer 15

Passive tension