Kinesiology: Muscles

Question 1

What type of muscles are blood vessels?

Answer 1

Smooth

Question 2

What part of the bone does a tendon attach to?

Answer 2

Periosteum

Question 3

What type of fascia sheath wraps around an entire muscle belly?

Answer 3

Epimysium

Question 4

A muscle’s basic contractile unit is known as a:
Myofibril
Myosin
Myofilament
Sarcomere

Answer 4

Sarcomere

Question 5

What molecule limits a sarcomere’s movement?
Collagen
Titin
Troponin
Tropmyosin

Answer 5

Titin

Question 6

What property of muscle allows it to develop when stimulated?
Excitability
Extensibility
Contractility
Elasticity

Answer 6

Contractility

Question 7

What property of muscle allows it to return to its original length after being stretched?
Extensibility
Contractibility
Excitability
Elasticity

Answer 7

Elasticity

Question 8

What type of muscle contraction occurs when a muscle is elongating?
Eccentric
Myometric
Isometric
Concentric

Answer 8

Eccentric

Question 9

What type of muscle contraction occurs when a muscle is shortening?
Myotonic
Eccentric
Concentric
Isometric

Answer 9

Concentric

Question 10

What type of muscle contraction occurs when a muscle changes length?
Isometric
Myometric
Eccentric
Isotonic

Answer 10

Isotonic

Question 11

What type of muscle contraction involves no joint movement?
Concentric
Isotonic
Eccentric
Isometric

Answer 11

Isometric

Question 12

What is the term for the muscle’s attachment to the more stationery bone?
Insertion
Origin
Stabilizer
Fixator

Answer 12

Origin

Question 13

What is the term for a muscle that assists the agonist in producing the main action?
Neutralizer
Antagonist
Synergist
Supporter

Answer 13

Synergist

Question 14

What group of muscles are designed to perform for long periods of time in semi-contracted state?
Supporter
Antagonist
Postural
Phasic

Answer 14

Posturals

Question 15

What functional group of muscles performs quick and strong movements?
Postural
Tonic
Phasic
Agonist

Answer 15

Phasic

Question 16

Agonist

Answer 16

Muscle/ Muscle group that produces the main action. When main action occurs agonist shortens

Question 17

Synergist

Answer 17

any muscle of assistance to agonist in producing main action (size, leverage, and line of pull make, a synergist is less effective in producing main action but is still of assistance)

Question 18

Antagonist

Answer 18

executes the action opposite that of the agonist when it shortens

Question 19

Neutralizer/fixator

Answer 19

muscle that limits any unwanted movements by other muscles

Question 20

Supporter

Answer 20

does not function near the main action, but supports another part of the body in position while the main action occurs

Question 21

Postural Muscles

Answer 21

Designed to perform for long periods of time in a semi contracted state

Question 21

Postural Muscles

Answer 21

Designed to perform for long periods of time in a semi contracted state

Question 22

Phasic muscles

Answer 22

Will perform movement, sometimes quickly and strongly

Question 23

Isotonic Contraction

Answer 23

When a muscle changes length, either shortening (concentric) or elongating (eccentric)

Question 24

Eccentric Contraction

Answer 24

Contraction muscle elongates

Question 25

Concentric Contraction

Answer 25

Contraction muscle shortens

Question 26

Isometric Contraction

Answer 26

no joint movement

Question 27

Origin

Answer 27

The attachment to the more STATIONARY bone

Question 28

Insertion

Answer 28

Connection to the more MOBILE bone

Question 29

Revere muscle action

Answer 29

When the origin and insertion switch roles