COTA 1260 (Week 2) (Intro to bones and muscles)

Question 1

Kinetic chain

Answer 1

Cooperative, interdependent movement of the segments and joints of the body

Question 2

Closed-chain

Answer 2

Functional movement involves joints with fixed/distal segment
-Prompt stabilization
-Ex: Pushing a grocery cart

Question 3

Open-chain

Answer 3

Free movement of distal segments in space
-Promotes mobility
-Ex: Conducting an orchestra

Question 4

Tensile force

Answer 4

Pulling (stretching)

Question 5

Compressive force

Answer 5

Pushing (compressing)

Question 6

Internal forces vs External forces

Answer 6

Internal forces: Muscle strength, line of pulling muscle fibers
External forces: Gravity, momentum, wind, friction

Question 7

Biomechanics

Answer 7

Examine the structure, function, and motion of the biological systems that make up a living organism

Question 7

Fixators

Answer 7

Provide stability at the origin

Question 8

Motor memory

Answer 8

Learned patterns of motion

Question 8

Agonist muscle

Answer 8

Prime mover

Question 8

Antagonist muscle

Answer 8

Contrasting muscle

Question 9

Synergists

Answer 9

The muscle that assists prime mover

Question 10

Force couple

Answer 10

Muscles that work together

Question 11

Isometric contraction

Answer 11

Contraction with no change in length

Question 12

Isotonic contraction

Answer 12

Contraction with charge in muscle length and joint motion
-Eccentric: lengthening
Concentric: shortening