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Anatomy > Head, Neck and Trunk > Flashcards

Head, Neck and Trunk Flashcards

1
Q

Origin and Insertion of m. orbicularis oris?

A

Circular Muscle
Upper and Lower Lips

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2
Q

Innervation of m. orbicularis oris?

A

Facial Nerve

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3
Q

Function of m. orbicularis oris?

A

Closes the opening of the mouth

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4
Q

Origin of m. levator nasolabialis?

A

Lateral surface of the nasal and maxillary bones

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5
Q

Termination of m. levator nasolabialis?

A

m. orbicularis oris near the nasal aperture

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6
Q

Innervation of m. levator nasolabialis?

A

n. facialis

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7
Q

Function of m. levator nasolabialis?

A

Raises the upper lip and widens external nares

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8
Q

Origin of m. levator labii superioris?

A

Maxillary Bones

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9
Q

Termination of m. levator labii superioris?

A

Upper lip

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10
Q

Innervation of m. levator labii superioris?

A

n. facialis

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11
Q

Function of m. levator labii superioris?

A

Raises upper lip and nasal plane.

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12
Q

Origin and Insertion of m. depressor labii superioris?

A

Facial Tuberosity
Upper Lip

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13
Q

Innervation of m. depressor labii superioris?

A

n. facialis

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14
Q

Function of m. depressor labii superioris?

A

Pulls upper lip down.

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15
Q

Origin and Insertion of m. depressor labii inferioris?

A

Maxillary Tuberosity
Lower Lip

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16
Q

Innervation of m. depressor labii inferioris?

A

n. facialis

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17
Q

Function of m. depressor labii inferioris?

A

Pulls lower lip down

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18
Q

Origin and Insertion of m. caninus?

A

Rostral on facial crest and facial tuberosity
Upper lip near nasal aperture

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19
Q

Innervation of m. caninus?

A

n. facialis

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20
Q

Function of m. caninus?

A

Widens external naris and draws back upper lip

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21
Q

Origin and insertion of m. zygomaticus?

A

Zygomatic Bone
m. orbicualris oris

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22
Q

Innervation of m. zygomaticus?

A

n. facialis

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23
Q

Function of m. zygomaticus?

A

Draws back angle of mouth

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24
Q

Origin and Insertion of m. buccinator?

A

Maxilla and Mandible
Middle Tendon

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25
Q

Innervation of m. buccinator?

A

n. facialis

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26
Q

Function of m. buccinator?

A

Narrows cheek pouch.

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27
Q

Origin of m. orbicularis oculi?

A

Circular muscle of the eye

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28
Q

Innervation of m. orbicularis oculi?

A

n. facialis

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29
Q

Function of m. orbicularis oculi?

A

Closes palpebral fissure

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30
Q

Origin and Insertion of m. malaris?

A

Facial Fascia
Lower eyelid

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31
Q

Innervation of m. malaris?

A

n. facialis

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32
Q

Function of m. Malaris?

A

Draws lower eyelid downward

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33
Q

Origin and Insertion of m. Temporalis?

A

Temporal Fossa
Coronoid Process (mandible)

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34
Q

function of m. Temporalis?

A

Raises mandible to close mouth

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35
Q

5 muscles of mastication being innervated the mandibular branch of the trigeminal nerve?

A

m. Temporalis
m. Masseter
m. pterygoideus medialis and lateralis
m. Digastricus

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36
Q

Origin and Insertion of m. Masseter?

A

Facial Crest & Zygomatic Arch
Lateral Mandible

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37
Q

Function of m. Masseter?

A

Raises mandible

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38
Q

Origin and Insertion of m. Pterygoideus medialis?

A

Pterygoid process of sphenoid & pterygoid bones
Medial surface of mandible

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39
Q

Function of m. Pterygoideus medialis?

A

Raises mandible

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40
Q

Origin and Insertion of m. Pterygoideus lateralis?

A

Pterygoid process of sphenoid bone
Medial mandible and condylar process.

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41
Q

Function of m. pterygoideus lateralis?

A

Raises mandible, draws mandible forward.

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42
Q

Origin and Insertion of m. digastricus?

A

Occipital process (occipital bone)
Medial mandibular body

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43
Q

Function of m. digastricus?

A

Draws mandible down and opens mouth.

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44
Q

Innervation of the two parts of m. Digastricus

A

Venter Rostralis: mandibular nerve
Venter Caudalis: digastric branch of facial nerve.

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45
Q

2 parts of m. Cleidocephalicus in the different species

A

Carn: cervical and mastoid
Eq: mastoid
Ru: occipital and mastoid

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46
Q

Origin of cleidocervical muscle (carn)

A

Nuchal ligament, occipital bone.

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47
Q

Origin of cleidomastoid muscle (carn)

A

Mastoid process, temporal bone.

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48
Q

Origin of cleidomastoid muscle (eq)

A

Mastoid process, temporal bone and nuchal crest.

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49
Q

Origin of cleidooccipital muscle (ru)

A

Occipital muscle, nuchal ligament

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50
Q

Origin of cleidomastoid muscle (ru)

A

Mastoid process of mandible.

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51
Q

Insertion of m. Cleidocephalicus (carn)

A

Clavicular intersection

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52
Q

Insertion of m. Cleidocephalicus (eq)

A

Deltoid tuberosity, humeral crest.

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53
Q

Insertion of m. Cleidocephalicus (Ru)

A

Humeral crest

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54
Q

Innervation of m. Brachiocephalicus

A

Axillary, Accessory and Cervical nerves.

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55
Q

Function of m. Brachiocephalicus?

A

Draws head/neck backwards and down.

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56
Q

What muscles form the m. cleidotransversarius in Eq?

A

m. cleidomastoidea and m. omotransversarius

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57
Q

2 parts of m. Sternocephalicus (carn)

A

pars occipitalis
pars mastoidea

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58
Q

2 parts of m. Sternocephalicus (eq)

A

Pars mandibularis

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59
Q

2 parts of m. Sternocephalicus (ru)

A

Pars mandibularis
Pars mastoidea

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60
Q

Innervation of m. Sternocephalicus?

A

Accessory nerve (ventral branch)

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61
Q

Function of m. sternocephalicus?

A

Flex head/neck, draws head/neck down.

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62
Q

Origin and insertion of m. Sterno-occipitalis (carn)

A

Manubrium
Nuchal crest

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63
Q

Origin and insertion of m. Sternomastoidea (carn)

A

Manubrium
Mastoid process

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64
Q

Origin and insertion of m. Sternomandibularis (eq)

A

Manubrium
Neck facing mandibular border

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65
Q

Origin and insertion of m. Sternomandibularis (ru)

A

Manubrium and 1st rib
Rostral border of Masseter muscle

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66
Q

Origin and Insertion of m. Sternomastoidea (Ru)

A

Manubrium
Temporal bone

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67
Q

Origin of m. splenius?

A

Spinous Process of thoracic vertebrae
Nuchal Ligament

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68
Q

Insertion of m. splenius cervicis?

A

Transverse Process of CV 3-5

69
Q

Insertion of m. splenius capitis?

A

Occipital bone, mastoid process.

70
Q

Which animal does not have m. splenius cervicis?

A

Carnivores

71
Q

Insertion of m. splenius?

A

Dorsal branch of Cervical and Thoracic nerves

72
Q

Function of m. splenius?

A

Extends and draws head and neck to the side.

73
Q

3 parts of m. scalenus?

A

m. scalenus ventralis
m. scalenus dorsalis
m. scalenus medius

74
Q

Innervation of m. scalenus?

A

Ventral branches of C5-8 and Th1-2

75
Q

Which part of m. scalenus is absent in carn?

A

m. scalenus ventralis

76
Q

Which part of m. scalenus is absent in eq?

A

m. scalenus dorsalis

77
Q

Origin of m. trapezius pars cervicalis?

A

Nuchal Ligament

78
Q

Origin of m. trapezius pars thoracica?

A

Supraspinous ligament

79
Q

Termination of m. trapezius?

A

Spina Scapulae

80
Q

Innervation of m. trapezius?

A

n. accessorius

81
Q

Function of m. trapezius?

A

Fixes shoulder, lifts/abducts/draws forelimb cranially.

82
Q

Origin and Insertion of m. omotransversarius?

A

Alae Atlantis and PT of Axis
Spina Scapulae

83
Q

Innervation of m. omotransversarius?

A

n. accessorius

84
Q

Function of m. omotransversarius?

A

Draws neck side/down, draws scapula up.

85
Q

Origin and Insertion of m. latissimus dorsi?

A

Thoraco-columbar fascia
Tuberositas Teres Major

86
Q

Innervation of m. latissimus dorsi?

A

Thoracodorsal nerve

87
Q

Function of m. latissimus dorsi?

A

Draws forelimb backward.
Antagonist to m. brachiocephalicus.

88
Q

Which animals have m. subclavius?

A

Eq/Su

89
Q

Origin and Insertion of m. subclavius?

A

1-4 rib cartilage
Epimysium of supraspinous muscle

89
Q

Innervation of m. subclavius?

A

Cranial thoracic nerves

89
Q

Function of m. subclavius?

A

Fixes scapula

89
Q

2 parts of m. rhomboideus?

A

m. rhomboideus cervicis
m. rhomboideus thoracis

90
Q

Origin of m. rhomboideus cervicis?

A

Processus spinuosus of CV

91
Q

Origin of m. rhomboideus thoracis?

A

Processus spinuosus of TV

92
Q

Termination of m. rhomboideus?

A

Medial base of scapula.

93
Q

Innervation of m. rhomboideus?

A

Dorsal and Ventral branches of Cervical and Thoracic nerves.

94
Q

Function of m. rhomboideus?

A

Moves limb forward, elevates limb and neck, fixes scapula.

95
Q

Origin and insertion of m. pectoralis profundus (ascendens)?

A

Sternum
Lesser tubercle of humerus

96
Q

Innervation of m. pectoralis profundus?

A

Cranial and caudal pectorals nerves.

97
Q

Function of m. pectoralis profundus?

A

Moves limb backward, supports the trunk, extends the shoulder joint.

98
Q

2 parts of m. pectorales superficiales?

A

m. pectoralis descendens
m. pectoralis transversus

99
Q

Origin and insertion of m. pectoralis descendens?

A

manubrium sterni
crista humeri

100
Q

Origin and insertion of m. pectoralis transversus?

A

Sternum
Lower arm fascia

101
Q

Innervation of the mm. pectorales superficiales

A

Cranial and caudal thoracic nerves

102
Q

Function of mm. pectorales superficiales

A

Limb forward/backward
Trunk sideward.

103
Q

2 parts of m. serratus ventralis?

A

m. serratus ventralis cervicis
m. serratus ventralis thoracis

104
Q

Origin of m. serratus ventralis cervicis

A

Transverse process of CV

105
Q

Origin of m. serratus ventralis thoracis?

A

Rib 1-7

106
Q

Termination of m. serratus ventralis

A

Facies serrata of scapula

107
Q

Innervation of m. serratus ventralis

A

Dorsal/Ventral branches of cervical nerves
Long thoracic nerve

108
Q

Function of m. serratus ventralis?

A

Trunk support, carries scapula/trunk forward/back.

109
Q

Origin and Insertion of mm. intercostales externi?

A

Caudal border of ribs
Cranial border of preceesing rib

110
Q

Innervation of mm. intercostales externi?

A

Intercostal nerves

111
Q

Function of mm. intercostales externi?

A

Extends thorax
Inhalation

112
Q

Origin and insertion of mm. intercostales interni?

A

Cranial border of ribs
Caudal borded of foregoing rib

113
Q

Innervation of mm. intercostales interni?

A

Intercostal nerves

114
Q

Function of mm. intercostales interni?

A

Contracts thorax
Exhalation

115
Q

Origin and Insertion of m. rectus thoracis?

A

1st rib
2nd - 4th rib cartilage

116
Q

Innervation of m. rectus thoracis?

A

Intercostal nerves

117
Q

Function of m. rectus thoracis?

A

Extends thorax
Inhalation

118
Q

What is the longest, strongest muscle in the back?

A

m. erector spinae

119
Q

Innervation of m. iliocostalis?

A

Dorsal branches of thoracic and lumbar nerves

120
Q

Origin and Insertion of m. iliocostalis cervicis?

A

TP of cranial thoracic vetrebrae
TP of C7

121
Q

Function of m. iliocostalis cervicis?

A

Bends vertebral column sideways.

121
Q

Origin and insertion of m. iliocostalis thoracis

A

Cranila edge of ribs
Caudal rib border and TP of C7

122
Q

Function of m. iliocostalis thoracis?

A

Bends vertebral column sideways.

123
Q

Origin and insertion of m. iliocostalis lumborum?

A

Iliac crest and TP of lumbar column
Caudal border of last rib

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Anatomy (3 decks)

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