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A&P 1 > Axial muscles > Flashcards

Axial muscles Flashcards

1
Q

Frontal belly (of occipitofrontalis)

A

Raises eyebrows and scalp

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2
Q

Occipital belly (of occipitofrontalis)

A

Retracts scalp

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3
Q

Oribicularis oculi

A

Closes eye for winking, blinking, squinting

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4
Q

Levator Palpebrae

A

Opens eye for winking, blinking, squinting

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5
Q

Temporalis

A

Elevates and retracts mandible

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6
Q

Masseter

A

Elevates and protracts mandible

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7
Q

Digastric muscle

A

Depress the mandible

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8
Q

Buccinator

A

Compressed the cheek, limits space between the cheek and teeth during chewing

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9
Q

Orbicularis Oris

A

Purse lips to whistle and speak

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10
Q

Zygomaticus major/minor

A

Elevates corners of mouth to smile

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11
Q

Depressor anguli oris

A

Depresses corners of mount to frown

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12
Q

Sternocleidomastoid

A

One muscle turns head to opposite side, both muscles together pull head down

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13
Q

Longissimus capitis

A

One muscle turns neck to same side, both muscles extend neck

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14
Q

Diaphragm

A

During inspiration, it lowers, increasing the vertical dimensions of the thoracic cavity ( causing lungs to expand )

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15
Q

External intercostals

A

Elevates ribs during inspiration

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16
Q

Internal intercostals

A

Depress ribs during expiration

17
Q

External obliques

A

One side: laterally flexes or rotate vertebral column

Both sides: flexes vertebral column

18
Q

Internal obliques

A

One side: laterally flexes or rotate vertebral column

Both sides: flexes vertebral column

19
Q

Transverse abdominis

A

One side: laterally flexes or rotate vertebral column

Both sides: flexes vertebral column

20
Q

Rectus abdominis

A

Flexes vertebral column and compressed abdominal wall

21
Q

Serratus anterior

A

Protracts (moves anterior) the scapula

22
Q

Trapezius

A

Elevates, retracts and depresses the scapula

23
Q

Pectoralis major

A

Flexión and addiction at the shoulder

24
Q

Latissimus dorsi

A

Extension and adduction at the shoulder

25
Q

Subscapularis

A

Medically rotates at the shoulder

26
Q

Deltoid

A

Main job- abduction at the shoulder… but assists in every shoulder based movement

27
Q

Supraspinatus

A

Abduction at the shoulder

28
Q

Teres major

A

Extends and adducts at the shoulder

29
Q

Teres minor

A

Adducts and lateral rotates at the shoulder

30
Q

Infraspinatus

A

Adducts and lateral rotates at the shoulder

A&P 1 (6 decks)

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