Muscular System

Question 1

Flexion and extension

Answer 1

Flexion - bending at a joint

Extension - straightening at a joint

Question 2

Abduction and adduction

Answer 2

Abduction - body part moves away from the midline of the body

Adduction - movement towards the midline of the body

Question 3

Rotation

Answer 3

When a body part turns about the long axis of the anatomical position

Question 4

Plantar-flexion and dorsiflexion

Answer 4

Plantar-Flexion - Flexion that causes the toes to move downward away from the shin

Dorsiflexion - upward towards the shin

Question 5

Origin

Answer 5

Where a muscle joins a stationary bone

Question 6

Insertion

Answer 6

Where a muscle joins a moving bone

Question 7

Agonist

Answer 7

The muscle that contracts to make movement

Question 8

Antagonist

Answer 8

The muscle that elates during movement

Question 9

Antagonistic pair

Answer 9

Muscles work in opposition: the create movement when one contracts (agonist) and the others relaxes (antagonist)

Question 10

Isotonic

Answer 10

Muscles change length as they contarct

Question 11

Isometric

Answer 11

Muscle contracts but stays the same length

Question 12

Concentric

Answer 12

Muscle contracts and it shortens

Question 13

Eccentric

Answer 13

Muscle contracts and it lengthens

Question 14

Slow twitch muscle fibers

Answer 14

Contract slowly

Produce little force

Higher fatigue tolerance

Good for endurance

Question 15

Fast twitch muscle fibers

Answer 15

Contract quickly

Produce large amount of force

Lower fatigue tolerance

Good for power