Chapter 11 Muscular system

Question 1

Skeletal muscles produce movement how?

Answer 1

By exerting force on tendons

Question 2

What do tendons attach to? and what do they do?

Answer 2

Tendons attach to and pulls on bones, and movement occurs

Question 3

Most muscles cross at least one what?

Answer 3

One joint and are attached at the articulating bones

Question 4

When a muscle contracts it does what?

Answer 4

Draws one articulating bone toward the other

Question 5

What is the origin muscles?

Answer 5

The attachment to the stationary bone

Question 6

What is the insertion of muscles?

Answer 6

The attachment to the moveable bone

Question 7

What are the three types of movers in muscle movement and coordination?

Answer 7

1. agonist/ prime mover
2. Antagonist
3. Synergist

Question 8

How are muscles named?

Answer 8

1. location
2. Size
3. Number of origins
4. Appearance
5. Direction of fibers
6. origin and insertion
7. muscle action

Question 9

What does rectus mean?

Answer 9

Parallel to midline

Question 10

What does transverse mean?

Answer 10

Perpendicular to midline

Question 11

What does oblique mean?

Answer 11

Diagonal to midline

Question 12

What does maximus mean?

Answer 12

Largest

Question 13

What does minimus mean?

Answer 13

Smallest

Question 14

What does longus mean?

Answer 14

Long

Question 15

What does brevis mean?

Answer 15

Short

Question 16

What does latissimus mean?

Answer 16

Widest

Question 17

What does longissimus mean?

Answer 17

Longest

Question 18

What does Magnus mean?

Answer 18

Large

Question 19

What does major mean?

Answer 19

Larger

Question 20

What does minor mean?

Answer 20

Smaller

Question 21

What does vastus mean?

Answer 21

Huge

Question 22

What does deltoid mean?

Answer 22

Triangular

Question 23

What does trapezius mean?

Answer 23

Trapezoid

Question 24

What does serratus mean?

Answer 24

Saw tooth shaped

Question 25

What does rhomboid mean?

Answer 25

Diamond shaped

Question 26

What does orbicularis mean?

Answer 26

Circular shaped

Question 27

What does pectinate mean?

Answer 27

Comblike

Question 28

What does piriformis mean?

Answer 28

Pear shaped

Question 29

What does platys mean?

Answer 29

Flat

Question 30

What does quadratus mean?

Answer 30

Square, four sided

Question 31

What does gracilis mean?

Answer 31

Slender

Question 32

What does flexor mean?

Answer 32

Decreases joint angle

Question 33

What does extensor mean?

Answer 33

Increases joint angle

Question 34

What does abductor mean?

Answer 34

Moves bone away from midline

Question 35

What does adductor mean?

Answer 35

Moves bone closer to midline

Question 36

What does levator mean?

Answer 36

Raises or elevates body part

Question 37

What does supinator mean?

Answer 37

Turns palm anteriorly

Question 38

What does pronator mean?

Answer 38

Turns palm posteriorly

Question 39

What does sphincter mean?

Answer 39

Decreases size of an opening

Question 40

What does tensor mean?

Answer 40

Makes body part rigid

Question 41

What does rotator mean?

Answer 41

Rotates bone around longitudinal axis

Question 42

What does biceps mean?

Answer 42

Two origins

Question 43

What does triceps mean?

Answer 43

Three origins

Question 44

What does quadriceps mean?

Answer 44

Four origins