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Anatomy - Muscles > Muscles > Flashcards

Muscles Flashcards

1
Q

Frontal

A

Origin: Epicranial Aponeurosis
Insertion: skin over supraorbital margin
Action: raises the eyebrows/wrinkles forehead

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2
Q

Occipital

A

Origin: Occipital bone
Insertion: Epicranial Aponeurosis
Action: pulls the scalp down

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3
Q

Oribucularis Oris

A

Origin: muscle fibers around the mouth
Insertion: at the corners/angles of the mouth
Action: closes/protrudes the lips

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4
Q

Zygomaticus Major

A

Origin: Zygomatic bone
Insertion: in the skin of the angles of the mouth
Action: pulls the angles of the mouth upward/outward

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5
Q

Buccinator

A

Origin: Maxilla/Mandible
Insertion: Orbicularis Oris
Action: Flattens the cheeks

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6
Q

Platysma

A

Origin: Fascia over the Deltoid/Pectoralis Major
Insertion: Mandible and the skin of the lower face
Action: Draws lower lip down and out/depresses lower Mandible

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7
Q

Orbicularis Oculi

A

Origin: Medial wall of the orbit
Insertion: in a circular path around the orbit
Action: closes the eyes

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8
Q

Levator Palpebrae Superioris (Over the eyelid)

A

Action: Elevates upper eyelid

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9
Q

Levator Labii Superioris

A

Origin: Maxillary bone
Insertion: into angles of mouth/skin of upper lip
Action: Elevates upper lip

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10
Q

Depressor Labii Inferioris

A

Origin: Mandible
Insertion: into the skin of the lower lip
Action: Lowers the bottom lip

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11
Q

Mentalis

A

Origin: Mandible
Insertion: Skin of the chin
Action: Elevates/protrudes the lower lip

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12
Q

Risorius (lateral across cheek)

A

Origin: fascia over parotid gland
Insertion: angles/corners of the mouth
Action: draws the angles of the mouth lateral

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13
Q

Nasalis

A

Action: Compresses/flairs the nostrils

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14
Q

Depressor Anguli Oris

A

Origin: Mandible
Insertion: Angles of the mouth
Action: brings angles of the mouth lateral and inferior

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15
Q

Auricularis (Right hand side of head and underneath Temporalis)

A

Action: Moves the oracle of the ear up and back (like cats and dogs)

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16
Q

Masseter (side of cheek)

A

Origin: Maxilla/Zygomatic Arch
Insertion: Mandible
Action: Elevates the Mandible

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17
Q

Temporalis

A

Origin: Temporal bone
Insertion: Mandible
Action: Elevates/retracts Mandible

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18
Q

Pterygoideus Lateralis

A

Origin: Pterygoid processes
Insertion: Mandible
Action: Moves Mandible side to side

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19
Q

Superior Rectus

A

Action: Makes eye look upward

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20
Q

Inferior Rectus

A

Action: Makes eye look downward

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21
Q

Lateral Rectus

A

Action: Makes eye look laterally

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22
Q

Medial Rectus

A

Action: Makes eye look medially

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23
Q

Inferior Oblique

A

Action: Makes eye look up and away

24
Q

Superior Oblique

A

Action: Makes eye look down and away

25
Q

Genioglossus

A

Origin: Mandible
Insertion: Underside of tongue/Hyoid bone
Action: depresses tongue

26
Q

Styloglossus

A

Origin: Styloid process of temporal bone
Insertion: Side/under tongue
Action: Elevates/retracts the tongue

27
Q

Digastric Anterior Belly

A

Origin: Mandible
Insertion: Hyoid bone
Action: Elevates Hyoid bone

28
Q

Digastric Posterior Belly

A

Origin: Temporal bone
Insertion: Hyoid bone
Action: Elevates Hyoid bone

29
Q

Mylohyoid

A

Origin: Mandible
Insertion: Hyoid bone
Action: Elevates Hyoid

30
Q

Stylohyoid

A

Origin: Styloid process
Insertion: Hyoid bone
Action: Elevates Hyoid

31
Q

Geniohyoid

A

Origin: Mandible
Insertion: Hyoid bone
Action: Elevates Hyoid

32
Q

Omohyoid

A

Origin: Scapula
Insertion: Hyoid
Action: depresses lower Hyoid bone

33
Q

Sternohyoid

A

Origin: Sternum
Insertion: Hyoid bone
Action: depresses Hyoid bone

34
Q

Thyrohyoid

A

Origin: Thyroid cartilage
Insertion: Hyoid bone
Action: lowers Hyoid/raises Thyroid

35
Q

Sternothyroid

A

Origin: Sternum
Insertion: Thyroid
Action: Lowers Thyroid cartilage

36
Q

Sternocleidomastoid

A

Origin: Sternum/Clavicle
Insertion: Mastoid process of the temporal bone
Action: laterally flexes the head to the same side, but rotates to the opposite

37
Q

Semispinalis Capitis

A

Origin: C7 - T6
Insertion: Occipital bone
Action: Extends the head

38
Q

Splenius Capitis

A

Origin: C7 to T4
Insertion: Occipital bone/Mastoid process
Action: Extends the head

39
Q

Scalenes Anterior, Middle, and Posterior

A

Origin: C2 to C7
Insertion: Rib 1 and 2
Action: Flexes cervical spine/elevates ribs

40
Q

Pectoralis Minor

A

Origin: Ribs 3-5
Insertion: Coracoid process of Scapula
Action: Depresses Scapula

41
Q

Serratus Anterior

A

Origin: Ribs 1-9
Insertion: Scapula
Action: Abducts the Scapula

42
Q

Trapezius

A

Origin: Occipital bone to T12
Insertion: Clavicle/Scapula
Action: Elevate and adducts the Scapula/extends the head

43
Q

Decatur Scapulae

A

Origin: C1-C4
Insertion: Scapula
Action: Elevates the Scapula

44
Q

Rhomboideus Major

A

Origin: T2-T5
Insertion: Scapula
Action: Adducting the Scapula

45
Q

Rhomboideus Minor

A

Origin: C7-T1
Insertion: Scapula Medial Border (Scapula)
Action: Adducting the Scapula

46
Q

Subclavius

A

Origin: Rib 1
Insertion: Clavicle
Action: Depresses Clavicle

47
Q

Pectoralis Major

A

Origin: Ribs 2-6, Clavicle, and Sternum
Insertion: Humerus
Action: Flexes and adducts Humerus

48
Q

Latissmus Dorsi

A

Origin: T8 to L5
Insertion: Humerus
Action: Adducting and extending Humerus

49
Q

Subscapularis

A

Origin: Subscapular fossa
Insertion: Humerus
Action: Medially rotates the Humerus

50
Q

Coracobrachialis

A

Origin: Coracoid process of Scapula
Insertion: Humerus
Action: Flexes the arm (raises arm)

51
Q

Deltoid

A

Origin: Clavicle/Scapula
Insertion: Humerus
Action: Abducts the arm

52
Q

Supraspinatus

A

Origin: Supraspinous fossa
Insertion: Humerus
Action: Abducts the Humerus (responsible for the first 15 degrees)

53
Q

Infraspinatus

A

Origin: Infraspinous fossa
Insertion: Humerus
Action: Laterally rotates Humerus

54
Q

Teres Major

A

Origin: Scapula
Insertion: Humerus
Action: Rotates Humerus medially

55
Q

Teres Minor

A

Origin: Scapula
Insertion: Humerus
Action: Laterally rotates Humerus

Anatomy - Muscles (1 decks)

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