Chapter 3

Question 1

The attempt of muscles to balance external and internal forces

Answer 1

Stability

Question 2

Muscles trying to create forces that allow controlled movement

Answer 2

Mobility

Question 3

Muscle fibers run parallel to one another and to the central tendon

Answer 3

Fusiform

Question 4

Possess fibers that approach the central tendon obliquely

Answer 4

Pennate

Question 5

Summation of the cross section of the muscle; “his bicep is larger than mine, so therefore he is probably stronger than me”

Answer 5

Muscle force production

Question 6

In terms of sufficiency, this occurs when the elbow joint is fully extended

Answer 6

Passive insufficiency

Question 7

In terms of sufficiency, this occurs when the elbow joint is fully flexed

Answer 7

Active insufficiency

Question 8

True or False:

Pennate muscle produces less maximal force than fusiform muscles of similar volume

Answer 8

False:
Pennation orientation provides a space saving energy. They have greater cross-section, thus great capacity to produce force

Question 9

The amount of muscle force is INVERSELY proportional to the velocity of the contraction is known as maximal effort ________ activation.

Answer 9

Concentric

the faster you contract, the less torque will be produced

Question 10

The amount of muscle force is DIRECTLY proportional to the velocity of the contraction is known as maximal effort ________ activation.

Answer 10

Eccentric

the faster you lengthen, the more force you’ll be able to produce

Question 11

Angle of orientation between the muscle fibers and tendon

Answer 11

Pennation angle