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ANAT1005 > Muscles > Flashcards

Muscles Flashcards

Learn muscles of the axial and appendicular body regions

1
Q

Orbicularis Occuli

A

O: medial margin of the orbit
I: Palpebral raphe (in eye socket)
F: closes eye
E: pain, wincing

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2
Q

Frontalis

A

O: galea aponeurotica
I: Supraorbital muscles and skin
F: raising scalp posteriorly
E:surprise or frown

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3
Q

Buccinator

A

O: alveolar process of maxilla and mandible and tempromandibular joint
I:in fibres of orbicularis oris
F: compress cheeks against teeth
E:disgust

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4
Q

Orbicularis Oris

A

O: mid-line of mandible and maxilla
I: mucous membrane of lips
F:compresses and protrudes lips
E: pouting

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5
Q

Zygomaticus Major

A

O: zygomatic bone
I: modiolus
F: draws corners of mouth laterally and superiorly
E: smile

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6
Q

Masseter Muscles

A 
O: zygomatic arch
I: lateral surface of mandibular ramus
F: elevation, protrusion, lateral deviation of mandible
Innervation: Trigeminal nerve
External Shape: quadrate
Fibre arrangment: multipennate
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7
Q

temporalis

A 
O: temporal lines/fascia
I: coronoid process of mandible
F: elevation, protrusion, lateral deviation of mandible
Innervation: Trigeminal nerve
External Shape: fan
Fibre arrangment: bipennate
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8
Q

Medial Pterygoid Muscles

A

O: medial side of lateral pterygoid plate
I: medial surface of mandibular angle
F: elevation, protrusion, lateral deviation of mandible
Innervation: Trigeminal nerve
Fibre arrangment: multipennate

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9
Q

Lateral Pterygoid Muscles

A

O: lateral side of lateral pterygoid plate
I: medial surface of TMJ and neck of mandible
F: elevation, protrusion, lateral deviation of mandible
Innervation: Trigeminal nerve

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10
Q

Sternocleidomastoid

A

O: manubrium and medial portion of clavicle
I: mastoid process of temporal bone
F: lateral flexes neck
Innervation: Accessory nerve

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11
Q

Scalenes

A

O: transverse process of cervical vertebrae
I: ribs 1 ands 2
F: elevate ribs 1 and 2 and flex and rotate the neck

helps elevate the rib cage during forced inspiration

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12
Q

Intercostal muscles

A

external (hands in pocket)

internal (hands across)

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13
Q

Splenious Capitis and Splenious Cervicis

A

O: spinous processes C7-T6 + ligamentum nuchae
I1: mastoid process/ occipital bone
12: transverse process C2-C4

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14
Q

Illiocostalis

A

most lateral on back
erector spinae
extend

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15
Q

Longissimus

A

middle
erector spinae
extend

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16
Q

Spinalis

A

closest
erector spinae
extend

17
Q

Abdominal muscles

A 
Rectus abdominus
Linear alba
tendonus inscriptos
transverse abdominus 
Quadratus lumborum - illiac crest, lumbar extension/upright posture
psoas major - flexion of hip/ thigh
throacolumbar facsia
18
Q

Pectoralis major

A

O:body of sternum
I:Greater tubercle of humerous (and intertubercle groove- lateral lip)
S: fan
F:flexion, adduction, medial rotation

19
Q

Pectoralis Minor

A

O: anterior surfaces of ribs 3-5
I: corocoid process of scapula
S: fan
F: downward rotation of scapula, elevate ribs

20
Q

Serratus Anterior

A

O:Anterior superior margin of ribs
I: Anterior surface of vertebral border of scapula
S: serrated
F: upward rotation of scapula

21
Q

Trapezius

A

O: occipital bone
I: acronium, clavicle, spine of scapula
S: trapezoid
F: elevate, retract, depress or rotate scapula and/or clavicles

22
Q

Latissimus Dorsi

A

O: spinous process of vertebrae ( inferior thoracic and lumbar)
I: Intertubecular groove on humorous
S: convergent
F: extension, adduction, medial rotation of shoulder

23
Q

Teres Major

A

O: Inferior angle of scapula
I: Intertubercular groove on humerous
S: Fusiform
F:extension and media rotation of shoulder

24
Q

Deltoid

A

O: Lateral clavicle, accronium and spine of scapula
I: Deltoid tuberosity on humerous
S: triangular
F: Abduction of shoulder joint

25
Q

Infraspinatus

A

O: infraspinous fossa
I: Greater tubercle of humerous
S:
F:

26
Q

Infraspinatus

A

O: infraspinous fossa
I: Greater tubercle of humerous
F: Lateral rotaton

27
Q

Supraspinatus

A

O: supraspinous fossa
I: Greater tubercle of humerous
F: Adbuction

28
Q

Subscapularius

A

O:subscapular fossa
I:Lesser tubercle of humerous
F: medial rotation

29
Q

Teres Major

A

O: lateral border of scapula
I: Greater tubercle of humerous
F: lateral rotation and abduction

30
Q

Biceps Branchi

A 
O: Short head- corocoid process 
Long head - supraglenoid tubercle
I: radial tuberosity 
S: Fusiform, two heads
F:flexion of shoulder and elbow
31
Q

Branchioradialis

A

O: lateral supracondylar ridge of distal humerous
I: styloid process on radius
F: flexion of elbow

32
Q

Branchialis

A

O: Anterior surface of humerous
I: coronoid process of ulna
F: flexion of elbow

33
Q

Coracobranchialis

A

O: coracoid process of scapula
I: medial margin of humeral shaft
F:adduction and flexion of shoulder

34
Q

Triceps Branchi

A

O:
long head- infraglenoid tubercule of scapula
lateral head - superior lateral margin of humerous
medial head- posterior surfac of humerous inferoir to the radial groove
I: Olecranon process of ulna
S: fusiform - three heads
F: extension of elbow
long head- extension and adduction of shoulder

ANAT1005 (1 decks)

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