Ch 7: Online 1 Flashcards

Muscular System

1
Q

The more movable muscle attachment

A

Insertion

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2
Q

What connects muscle to bone?

A

Tendons made of fibrous CT

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3
Q

Bone is to periosteum as muscle is to what?

A

Fascia

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4
Q

What is the unit of contraction within a muscle cell?

A

Sarcomere

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5
Q

Reservior for calcium ions

A

Sarcoplasmic reticulum

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6
Q

What are the contracting proteins?

A

Actin and myosin

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7
Q

What muscle raises the lower jaw?

A

Masseter

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8
Q

What muscle shrugs the shoulder?

A

Trapezius

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9
Q

What muscle flexes the spinal column?

A

Rectus abdominus

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10
Q

What muscles pull ribs up and out?

A

External intercostals

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11
Q

What muscle abducts the humerus?

A

Deltoid

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12
Q

What muscle group extends the femur?

A

Hamstring

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13
Q

What muscle dorsiflexes the foot?

A

Tibialis anterior

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14
Q

What muscle extends the forearm?

A

Triceps brachii

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15
Q

What type of muscle attachment is insertion?

A

The more moveable muscle attachment

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16
Q

What do tendons made of fibrous CT do?

A

Connect muscle to bone

17
Q

What is sarcomere?

A

The unit of contraction within a muscle cell

18
Q

What is sarcoplasmic reticulum?

A

Reservior for calcium ions

19
Q

What are actin and myosin?

A

The contracting proteins

20
Q

What does the masseter muscle do?

A

Raises the lower jaw

21
Q

What does the trapezius muscle do?

A

Shrugs the shoulder

22
Q

What does the rectus abdomens muscle do?

A

Flexes the spinal column

23
Q

What do the external intercostal muscles do?

A

Pull ribs in and out

24
Q

What does the deltoid muscles do?

A

Abduct the humerus

25
Q

What does the hamstring muscle do?

A

Extend the femur

26
Q

What does the tibialis anterior muscle do?

A

Dorsiflexes the foot

27
Q

What does the triceps brachia muscle do?

A

Extend the forearm