Week 2 Muscular system Intro

Question 1

Epimysium

Answer 1

A course sheath which covers the muscle as a whole

Question 2

Perimysium

Answer 2

A tough connective tissue that surrounds Fascicles (bundles of skeletal muscle fibers) together

Question 3

Endomysium

Answer 3

A delicate connective tissue membrane that surrounds individual muscle fibers

Question 4

Aponeurosis

Answer 4

a broad, flat sheet of connective tissue

Question 5

Fascia

Answer 5

fibrous connective tissue found under the skin and surrounding many deeper organs, including skeletal muscles and bones

Question 6

The 4 properties of muscle tissue are:

Answer 6

Electrical Excitability Contractility Extensibility Elasticity

Question 7

Parallel Muscles

Answer 7

Strap-like muscles that vary in length and have greater ROM than other mm arrangements

Question 8

Convergent Muscles

Answer 8

Fascicles that radiate from a wider to a smaller point of attachment and run along the line of pull of mm

Question 9

Pennate Muscles

Answer 9

Featherlike in appearance. Fascicles lie at an angle or obliquely to line of pull of muscle. Generates greater amount of force than ROM

Question 10

Fusiform Muscles

Answer 10

Fascicles that may be close to parallel in the center, or “belly” of the muscle that converge to a tendon at one or both ends

Question 11

Spiral Muscles

Answer 11

Have fibers that twist between their points of attachment

Question 12

Circular muscles

Answer 12

Sometimes called orbicular muscles and sphincters. Fascicles run in a ring pattern and often circle body openings. Generate small amounts of force and ROM

Question 13

Origin

Answer 13

Point of attachment that does not move when muscle contracts

Question 14

Insertion

Answer 14

Point of attachment that moves when the muscles contracts

Question 15

Prime Movers (Agonists)

Answer 15

Muscles or groups of muscles that directly perform OR provide the major force for a specific movement

Question 16

Antagonists

Answer 16

Muscles that when contracting, directly oppose prime movers. Relaxed or contracting minimally while the prime mover is contracting

Question 17

Answer 17

Bipennate Muscle

Question 18

Answer 18

Circular Muscle

Question 19

Answer 19

Convergent Muscle

Question 20

Answer 20

Endomysium

Question 21

Answer 21

Epimysium

Question 22

Answer 22

Fusiform Muscle

Question 23

Answer 23

Multipennate Muscle

Question 24

Answer 24

Parallel Muscle

Question 25

Answer 25

Perimysium

Question 26

Answer 26

Unipennate Muscle