Ch 7: Online 1 Flashcards by Allie Kroll

Q

The more movable muscle attachment

A

Insertion

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Q

What connects muscle to bone?

A

Tendons made of fibrous CT

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Q

Bone is to periosteum as muscle is to what?

A

Fascia

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Q

What is the unit of contraction within a muscle cell?

A

Sarcomere

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Q

Reservior for calcium ions

A

Sarcoplasmic reticulum

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Q

What are the contracting proteins?

A

Actin and myosin

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Q

What muscle raises the lower jaw?

A

Masseter

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Q

What muscle shrugs the shoulder?

A

Trapezius

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Q

What muscle flexes the spinal column?

A

Rectus abdominus

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Q

What muscles pull ribs up and out?

A

External intercostals

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Q

What muscle abducts the humerus?

A

Deltoid

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Q

What muscle group extends the femur?

A

Hamstring

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Q

What muscle dorsiflexes the foot?

A

Tibialis anterior

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Q

What muscle extends the forearm?

A

Triceps brachii

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Q

What type of muscle attachment is insertion?

A

The more moveable muscle attachment

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Q

What do tendons made of fibrous CT do?

A

Connect muscle to bone

Q

What is sarcomere?

A

The unit of contraction within a muscle cell

Q

What is sarcoplasmic reticulum?

A

Reservior for calcium ions

Q

What are actin and myosin?

A

The contracting proteins

Q

What does the masseter muscle do?

A

Raises the lower jaw

Q

What does the trapezius muscle do?

A

Shrugs the shoulder

Q

What does the rectus abdomens muscle do?

A

Flexes the spinal column

Q

What do the external intercostal muscles do?

A

Pull ribs in and out

Q

What does the deltoid muscles do?

A

Abduct the humerus

What does the hamstring muscle do?

Extend the femur

What does the tibialis anterior muscle do?

Dorsiflexes the foot

What does the triceps brachia muscle do?

Extend the forearm