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MSK > Anatomy of head,neck,trunk > Flashcards

Anatomy of head,neck,trunk Flashcards

1
Q

Orbicularis oculi - origin

A

Medial margin of the orbit

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2
Q

Orbicularis oculi - insertion

A

Skin of the eyelid

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3
Q

Orbicularis oculi - actions

A

close the eye

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4
Q

Orbicularis Oris - origin

A

Maxilla and mandible

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5
Q

orbicularis Oris -insertion

A

skin at the corner of the mouth

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6
Q

orbicularis Oris - actions

A

Closes the lips

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7
Q

buccinator - origin

A

maxilla and mandible

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8
Q

buccinator - insertion

A

fibres of the orbicularis Oris

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9
Q

buccinator - actions

A

compresses the cheek and thus allows suckling

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10
Q

masseter - origin

A

zygomatic arch

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11
Q

masseter - insertion

A

mandible

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12
Q

masseter - actions

A

elevates the mandible

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13
Q

temporalis -origin

A

temporal bone

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14
Q

temporalis - insertion

A

mandible

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15
Q

temporalis -actions

A

Elevates and retracts the mandible

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16
Q

sternocleidomastoid - origin

A

two heads

Sternum and sternal end of clavicle

17
Q

Sternocleidomastoid - insertion

A

Mastoid process

18
Q

sternocleidomastoid - actions

A

When both contract neck flexes
When left contracts head rotates right
When right contracts head rotates left

19
Q

trapezius - origin

A

Occipital bone
Cervical vertebrae
Thoracic vertebrae

20
Q

trapezius - insertion

A

clavicle
Acromion of scapula
Spine of scapula

21
Q

Trapezius - actions

A

extends the neck when scapula is fixed

22
Q

External intercostal muscles - origin

A

Inferior border of rib above

23
Q

external intercostal muscles-insertion

A

superior border or rib below

24
Q

internal intercostal muscles - origin

A

superior border of rib below

25
Q

internal intercostal muscles -insertion

A

Inferior border of rib above

26
Q

diaphragm - origin

A

xiphoid process
The lower ribs
First lumbar vertebrae

27
Q

diaphragm - insertion

A

a central tendon

28
Q

rectus abdominis -origin

A

Superior surface of pubic bone

29
Q

rectus abdominis - insertion

A

xiphoid process

Costal cartilage of ribs 5-7

30
Q

rectus abdominis - actions

A

the vertebral column and trunk is flexed

MSK (3 decks)

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