Chapter 11 Muscular system Flashcards by Brian Chuong

Q

Skeletal muscles produce movement how?

A

By exerting force on tendons

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Q

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

A

Tendons attach to and pulls on bones, and movement occurs

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Q

Most muscles cross at least one what?

A

One joint and are attached at the articulating bones

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Q

When a muscle contracts it does what?

A

Draws one articulating bone toward the other

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Q

What is the origin muscles?

A

The attachment to the stationary bone

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Q

What is the insertion of muscles?

A

The attachment to the moveable bone

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Q

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

A

agonist/ prime mover
Antagonist
Synergist

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Q

How are muscles named?

A

location
Size
Number of origins
Appearance
Direction of fibers
origin and insertion
muscle action

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Q

What does rectus mean?

A

Parallel to midline

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Q

What does transverse mean?

A

Perpendicular to midline

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Q

What does oblique mean?

A

Diagonal to midline

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Q

What does maximus mean?

A

Largest

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Q

What does minimus mean?

A

Smallest

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Q

What does longus mean?

A

Long

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Q

What does brevis mean?

A

Short

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Q

What does latissimus mean?

A

Widest

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Q

What does longissimus mean?

A

Longest

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Q

What does Magnus mean?

Study These Flashcards

A

Large

Q

What does major mean?

Study These Flashcards

A

Larger

Q

What does minor mean?

Study These Flashcards

A

Smaller

Q

What does vastus mean?

Study These Flashcards

A

Huge

Q

What does deltoid mean?

Study These Flashcards

A

Triangular

Q

What does trapezius mean?

Study These Flashcards

A

Trapezoid

Q

What does serratus mean?

Study These Flashcards

A

Saw tooth shaped

What does rhomboid mean?

Diamond shaped

What does orbicularis mean?

Circular shaped

What does pectinate mean?

Comblike

What does piriformis mean?

Pear shaped

What does platys mean?

Flat

What does quadratus mean?

Square, four sided

What does gracilis mean?

Slender

What does flexor mean?

Decreases joint angle

What does extensor mean?

Increases joint angle

What does abductor mean?

Moves bone away from midline

What does adductor mean?

Moves bone closer to midline

What does levator mean?

Raises or elevates body part

What does supinator mean?

Turns palm anteriorly

What does pronator mean?

Turns palm posteriorly

What does sphincter mean?

Decreases size of an opening

What does tensor mean?

Makes body part rigid

What does rotator mean?

Rotates bone around longitudinal axis

What does biceps mean?

Two origins

What does triceps mean?

Three origins

What does quadriceps mean?

Four origins