Muscular considerations for movement

Question 1

What are major contributors to human movement?

Answer 1

Muscles

Question 2

What muscles are under direct voluntary control?

Answer 2

Skeletal muscles

Question 3

What are the muscle properties?

Answer 3

Irritability or excitability, contractility, extensibility, and elasticity

Question 4

What is the ability to respond to stimulation?

Answer 4

Irritability or excitability

Question 5

What is the ability to generate tension and shorten when receiving stimulation?

Answer 5

Contractility

Question 6

What is the ability to lengthen ( stretch) beyond

Answer 6

Extensibility

Question 8

What are the 3 main muscle functions?

Answer 8

Produces movement, maintains postures and positions, and stabilizes joints

Question 9

Muscles control the ________ and ________ to the body and allows voluntary control over _________ and _____________. What is wrong if this function does not happen.

Answer 9

Entrances, exit, swallowing and excretion. Problems with nervous system

Question 10

What do muscles support and protect?

Answer 10

Visceral organ and other internal tissue

Question 11

Where does muscle alter and control pressure?

Answer 11

Within body cavities.

Question 12

Muscles typically act in _________

Answer 12

unision

Question 13

How does muscle maintain body temp?

Answer 13

Produced heat by shivering

Question 14

What are compartments defined by?

Answer 14

Fascia

Question 15

What are compartments commonly named by?

Answer 15

location

Question 16

What type of fiber arrangement is most powerful

Answer 16

parallel ( quads)

Question 17

Why do muscles typically act in unision?

Answer 17

It is common to be innervated by same nerve

Question 18

What fiber arrangement is better for quick movement?

Answer 18

pennate

Question 19

What are the types of parallel muscles?

Answer 19

Flat, Fusiform, Strap, Convergent, and Circular

Question 20

What muscle is thin and broad, forces over large area?

Answer 20

Flat

Question 21

What are examples of Flat muscles?

Answer 21

Rectus abdomins, external oblique

Question 22

What muscle os spindle-shaped with central muscle belly, force to small bony sites?

Answer 22

Fusiform

Question 23

What are examples of Fusiforms?

Answer 23

Biceps brachii, brachioradialis

Question 24

What muscle has no muscle belly regions with uniform diameter along the length of the muscle, force transmitted to targeted sites.

Answer 24

Strap

Question 25

What are examples of strap muscles?

Answer 25

Sartorius

Question 26

What muscles Combined arrangement of flat and fusiform fiber shapes originating on broad aponeuroses and converge onto a tendon

Answer 26

Convergent

Question 27

What are examples of convergent muscles

Answer 27

Pectoralis major, trapezius

Question 28

What muscles have concentric arrangements of strap muscles surrounding openings

Answer 28

Circular

Question 29

What are examples of circular muscles?

Answer 29

Orbicularis oris

Question 30

The actually parallel fibers have the force to _______

Answer 30

Shorten

Question 31

What does a larger physiological cross-section allow?

Answer 31

Greater force generation and strength

Question 32

What fiber arrangement has a Greater range of shortening and movement velocity due to longer resting length

Answer 32

Parallel

Question 33

What fibers Force of fiber at an angle to line of pull

Answer 33

Pennate

Question 34

When comparing parrel and pennate fibers we use ________

Answer 34

The physiological cross sections

Question 35

What fibers run diagolly off to one side of the tendon?

Answer 35

Unipennate

Question 39

What is an example of a bipennate muscle?

Answer 39

Rectus femoris, vastus lateralis and infraspinatus

Question 40

Force is in the same direction of what muscle?

Answer 40

Parallel

Question 41

Why is there a greater range of shortening and movement velocity?

Answer 41

Because of longer resting length

Question 42

Name the layers of muscle fibers from superficial to deep.

Answer 42

Tendon/Attachment, Epimysium, Perimysium, Endomysium, Muscle fiber

Question 43

What is fiber type important for?

Answer 43

Muscle metabolism and energy consumption

Question 44

Do most muscles contain both types of fibers?

Answer 44

Yes

Question 45

What fiber type is oxidative , has slow contraction times and is sutiable for prolonged low intensity work?

Answer 45

Slow twitch fibers Type 1

Question 46

What are the two types of fast twitch fibers?

Answer 46

Type 2a and Type 2b

Question 47

Which fiber is oxidative-glyocolytic and can sustain for long periods then fatigue or only food for short bursts?

Answer 47

Type 2a

Question 48

Which fiber is glycolytic and has rapid force production and quick fatigue?

Answer 48

Rapid force production and quick fatigue

Question 49

Muscle _____ produces joint movement and provides the joint with dynamic joint stability

Answer 49

contraction

Question 50

In order for muscles to perform their job properly the muscle must be in ________ _______ _______.

Answer 50

optimal length-tension relationship

Question 51

What is an optimal L-T relationship?

Answer 51

Position where the muscle can generate the most tension with the least effort.