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MCB 245 > Exam 3 > Flashcards

Exam 3 Flashcards

(87 cards)

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1
Q

Occipitofrontalis m. (frontal belly)

A

Elevates eyebrows and wrinkles skin of forehead

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2
Q

Occipitofrontalis m (occipital belly)

A

Retracts scalp

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3
Q

Orbicularis oculi m.

A

Closes eye, produces winking, blinking, squinting

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4
Q

Nasalis m.

A

Compresses bridge and depresses tip of nose

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5
Q

Procerus m.

A

Moves and wrinkles nose

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6
Q

Depressor anguli oris m.

A

Moves corners of mouth inferiorly and laterally (frowning muscles)

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7
Q

Depressor labii inferios m.

A

Moves lower lip inferiorly

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8
Q

Levator anguli oris m.

A

Moves corner of mouth superiorly and laterally

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9
Q

Levator labii superioris

A

“Opens lips
Raises and furrows the upper lip (‘Elvis lip snarl’) “

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10
Q

Mentalis m.

A

Protrudes lower lip (‘pouting’ muscle)

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11
Q

Orbicularis oris

A

Compresses and purses lips (‘kissing’ muscle)

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12
Q

Platysma m.

A

Pulls lower lip inferiorly, tenses skin of neck

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13
Q

Risorius

A

Moves corners of lips laterally

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14
Q

Zygomaticus major m.

A

Elevates corners of mouth (‘smile’)
Origin: Zygomatic bone
Insertion: Edge of mouth

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15
Q

Zygomaticus minor m.

A

Elevates corners of mouth (‘smile’)
Origin: Zygomatic bone
Insertion: Superior lip

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16
Q

Buccinator m.

A

Compress check
Origin: mandible and maxillae
Insertion: Orbicularis oris m.

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17
Q

Masseter m

A

Elevates and protracts mandible
Origin: Zygomatic arch
Insertion: Ramus and angle of mandible

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18
Q

Temporalis m.

A

Elevates and retracts mandible
Origin: Parietal bone
Insertion: Coronoid process of mandible

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19
Q

Flexion

A

bending movement that decreases angle between 2 parts

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20
Q

Extension

A

bending movement that increases angle between two parts

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21
Q

Adduction

A

motion that pulls structure or part toward midline of body or towards midline of limb

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22
Q

Abduction

A

motion that pulls structure or part away from midline of body or away from midline of limb

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23
Q

Elevation

A

movement in superior direction

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24
Q

Depression

A

movement in inferior direction

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25
Rotation
moving or turning of body around its axis
26
Pronation
rotates forearm inward
27
Supination
rotates forearm outward
28
Dorsiflexion
lifts foot upward
29
Plantarflexion
pushes foot into ground
30
Protraction
posterior movement of body part from anatomical position
31
*Mylohyoid
Elevates hyoid bone and elevates floor of mouth Origin: mandible Insertion: Hyoid bone
32
*Digastric
Depresses mandible and elevates hyoid bone
33
*Omohyoid
Depresses hyoid Origin: scapula Insertion: hyoid
34
*Sternohyoid
Depresses hyoid bone Origin: manubrium of sternum and clavicle Insertion: Hyoid
35
Thyrohyoid
Depresses hyoid bone and elevates larynx
36
Splenius capitis
Extends neck
37
Levator scapulae
Elevates scapula and rotates
38
Sternocleidomastoid m. (clavicular head)
Flexes neck (bilateral action); Lateral flexion and rotation of neck Origin: Clavicle Insertion: Mastoid process of temporal bone and occipital bone
39
Sternocleidomastoid m. (sternal head)
Flexes neck (bilateral action); Lateral flexion and rotation of neck Origin: Manubrium of sternum Insertion: Mastoid process of temporal bone and occipital bone
40
Scalene
Flexes neck;elevates ribs during forces inspiration
41
Superior Rectus
Action: look superiorly Origin: Sphenoid Insertion: superior region of eye
42
Inferior rectus
Action: look inferiorly Origin: Sphenoid Insertion: inferior region of eye
43
Medial rectus
Action: look medially Origin: Sphenoid Insertion: medial region of eye
44
Lateral rectus
Action: look laterally Origin: Sphenoid Insertion: lateral region of eye
45
Superior oblique
Looks inferiorly and laterally, top of eye rotates medially Origin: Sphenoid Insertion: Lateral region of eye
46
Inferior oblique
Looks superiorly and laterally, bottom of eye rotates medially Origin: Maxilla Insertion: Lateral region of eye
47
Genioglossus
protracts tongue
48
Hyoglossus
Depresses & retracts tongue
49
Palatoglossus
Elevates tongue
50
Styloglossus
Elevates & retracts tongue
51
Pharyngeal constrictor
Constricts pharaynx
52
Levator veli palatini
Elevates soft palate when swallowing
53
Tensor veli palatini
Tenses soft palate when swallowing
54
External intercostal
Elevates ribs Origin: Inferior border of superior rib Insertion: Superior border of inferior rib
55
External oblique
Flexes vertebral column and compresses abdomen (bilateral action); lateral flexion and rotation of vertebral column (unilateral action) Origin: Ribs 5-12 Insertion: Linea alba
56
Internal intercostal
Depresses ribs Origin: Superior border of inferior ribs Insertion: Inferior border of superior rib
57
Internal oblique
Flexes vertebral column and compresses abdomen (bilateral action); lateral flexion and rotation of vertebral column (unilateral action)
58
Pectoralis major
Flexes arm Adducts arm Medial rotation of arm Origin: Clavicle, Ribs, Sternum Insertion: Humerus
59
Pectoralis minor
Protraction/abduction of scapula depresses scapula Origin: Coracoid process of scapula Insertion: Ribs
60
Rectus abdominis
Flexes vertebral column & compresses abdominal wall Origin: Xiphoid process of sternum, Ribs 5-7 Insertion: Pubis
61
Serratus anterior
Protraction of scapula
62
Transverse abdominis
Flexes vertebral column and compresses abdomen (bilateral action); lateral flexion and rotation of vertebral column (unilateral action)
63
Linea alba
Vertical fibrous strip that connects left and right rectus sheaths
64
Rectus sheath
Fibrous sleeve that encloses rectus abdominis
65
Layers
External oblique -> Internal oblique and rectus abdominis -> transverse abdominis
66
Biceps brachii (short head)
Flexion and supination of forearm Origin: Scapula Insertion: Radial tuberosity of radius
67
Biceps brachii (long head)
Flexion and supination of forearm Origin: Scapula Insertion: Radial tuberosity of radius
68
Trapezius
Elevate, depress, retract scapula Origin: occipital bone & spinous processes C7-T12 Insertion: Clavicle, acromion process, and spine of scapula
69
Deltoid
Abduction of arm Origin: Acromial end of clavicle, acromion, spine of scapula Insertion: Deltoid tuberosity of humerus
70
Pectoralis major
Flexes, adducts, medial rotation of arm Origin: Clavicle, ribs, sternum Insertion: Humerus
71
Latissimus dorsi
Extends, adducts, medial rotation of arm
72
Coracobrachialis
Flexion and adduction of arm Origin: Coracoid process of scapula Insertion: Humerus
73
Subclavius
Depress clavicle Origin: 1st rib Insertion: Clavicle
74
Subscapularis
Medial rotation of arm Origin: Subscapular fossa of scapula Insertion: Lesser tubercle of humerus
75
Pectoralis minor
Protraction/abduction, depresses scapula Origin: Coracoid process of scapula Insertion: Ribs
76
Teres minor
Adduction & lateral rotation of arm Origin: Scapula Insertion: humerus
77
Teres major
Extension, adduction, medial rotation of arm Origin: Scapula Insertion: Humerus
78
Rhomboid minor
Elevates and retracts scapula Origin: Spinous process of vertebrae Insertion: Medial border of scapula
79
Rhomboid minor
Elevates and retracts scapula Origin: Spinous process of vertebrae Insertion: Medial border of scapula
80
Supraspinatus
Abduction of arm Origin: Supraspinous fossa of scapula Insertion: Greater tubercle of humerus
81
Infraspinatus
Lateral rotation of arm Origin: Infraspinous fossa of scapula Insertion: Greater tubercle of humerus
82
Serratus posterior
Elevates and depresses ribs during forced inspiration/expiration
83
Triceps brachii (long head)
Extension of forearm Origin: Scapula Insertion: Olecranon of ulna
84
Triceps brachii (lateral head)
Extension of forearm Origin: Humerus Insertion: Olecranon of ulna
85
Triceps brachii (medial head)
Extension of forearm Origin: Humerus Insertion: Olecranon of ulna
86
Erector spinae
Extends vertebral column (bilateral); lateral flexion of vertebral column (unilateral)
87
Semispinalitis capitis
Extends vertebral column (bilateral); lateral flexion of vertebral column (unilateral)

MCB 245 (5 decks)

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