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Anatomy > Origins And Muscles > Flashcards

Origins And Muscles Flashcards

0
Q

Mylohyoid

A

Origin: medial surface of mandible

Insertion: median raphe

Action: raises the floor of mouth and draws the hyoid bone anteriortly

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1
Q

Diagastric

A

Origin: jugular and mastoid processes

Insertion: inferior border of mandible

Action: depresses the mandible

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2
Q

Masseter

A

Origin: zygomatic arch

Insertion: lateral surface of mandible

Action: elevates the mandible

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3
Q

Sternomastoid

A

Origin: manubrium

Insertion:mastoid process

Action: single muscles turn head; both muscles together depress the head and neck

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4
Q

Clavotrapezius

A

Orgin: superior nuchal line of occipital

Insertion: clavicle

Action: forward extension of humerus, turns head, flexes elbow

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5
Q

Sternohyoid

A

O: first costal cartilage

Insertion: hyoid bone

Action: moves hyoid posteriorly

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6
Q

Pectoantebrachialis

A

O: manubrium

I: fascia of forelimb at elbow

A: draws forelimb towards chest

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7
Q

Pectoralis major

A

O: sternum

I: proximal 2/3 of humerus

A: draws forelimb towards chest

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8
Q

Pectoralis minor

A

O: Sternum

I: proximal 1/2 of humerus

A: draws forelimb toward chest

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9
Q

Xiphihumeralis

A

O: sternum

I: proximal end of the humerus

A: draws forelimb towards chest

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10
Q

Epitrochlearis

A

Found in cats only

O: border of latissimus dorsi

I: fascia of forelimb

A: extends elbow

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11
Q

Triceps Brachii (long head)

A

O: axillary border of humerus

I: Olecranon process of ulna

A: extends elbow

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12
Q

Latissimus dorsi

A

O: spines of posterior thoracic vertebrae and lumbar vert.

I: medial humerus

A: pulls forelimb dorsal and posteriorly

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13
Q

External oblique

A

O: lumbodorsal fascia

I: linea alba

A: flex trunk, compresses abdominal viscera

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14
Q

Internal oblique

A

O: lumbodorsal fascia

I: linea alba

A: flex trunk, compresses abdominal viscera

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15
Q

Transversus abdominis

A

O: posterior ribs, ilium, lumbar vertebrae

I: linea alba

A: flex trunk, compresses abdominal viscera

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16
Q

Rectus abdominal

A

O: pubic symphysis

I: sternum

A flexes trunk and compresses abdominal viscera

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17
Q

Serratus ventralis

A

O: ribs and cervical vertebrae

I: Scapula

A: suspends thorax

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18
Q

Clavotrapezius

A

O: superior nuchal line of occipital

I: clavicle

A: turns head, flexes elbow, forward extension of humerus

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19
Q

Acromiotrapezius

A

O: cervical vertebrae and anterior thoracic vertebrae

I: scapular sine and associated fascia

A: holds and moves scapula

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20
Q

Spinotrapezius

A

O: spines of posterior thoracic vertebrae

I: scapular spine and associated fascia

A: holds and moves scapula

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21
Q

Levator scapulae ventralis

A

O: occipital bone and atlas

I: metacromion

A: moves scapula forward

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22
Q

Clavobrachialis

A

O: clavicle

I: proximal end of ulna

A: forward extension of humerus

23
Q

Acromiodeltoid

A

O: acromion process

I: proximal end of humerus

A: raises and rotates humerus

24
Spinodeltoid
O: scapular spine I: proximal end of humerus A: raises and rotates humerus
25
Triceps brachii lateral head
O: axillary border of humerus I: Olecranon process of ulna A: extends elbow
26
Brachioradialis
O: mid humerus I: distal radius A: rotates radius, supinates forelimb
27
Supraspinatus
O: supraspinous fossa of scapula I: greater tubercle of humerus A: extends humerus
28
Infraspinatus
O: infra spinous fossa of scapula I: greater tubercle of humerus A: rotates humerus outward
29
Subscapularis
O: subscapular fossa of scapula I: lesser tubercle of humerus A: addicts humerus
30
Rhomboideus
O: cervical and thoracic vertebral spines I: vertebral border of scapula A: pulls scapula posteriorly
31
Rhomboideus capitus
O: occipital bone I: vertebral border of scapula A: pivots scapula
32
Teres major
O: scapula axillary border I: proximal humerus A: rotates humerus and draws it posteriorly
33
Triceps brachii medial head
O: axillary border of humerus I: Olecranon process of ulna A: extends elbow
34
Sartorius
O: iliac crest I: tibia, patella, knee fascia A: adducts and rotates thigh, extends knee
35
Gracilis
O: ischium and pubic symphysis I: medial surface of tibia A: adducts leg and moves leg posteriorly
36
Tibialis anterior
O: proximal tibia and fibula I: first metatarsal A: flexes foot
37
Iliopsoas
O: ilium and lumbar vertebrae I: lesser trochanter of femur A: moves thigh foreword and rotates outward
38
Pectineus
O: anterior pubis I: proximal end of femur A: adducts thigh
39
Adductor longus
O: pubis I: femur A: adducts thigh
40
Adductor femoris
O: pubis I: femur A: adducts thigh
41
Semimembranosus
O: ischial Tuberosity I: tibia; proximal end and femur medial Epicondyle A: extends thigh posteriorly
42
Semitendinosus
O: ischial Tuberosity I: medial tibia A: flexes knee
43
Tensor fascia latae
O: iliac crest I: fascia latae A: flexes thigh
44
Vastus lateralis
O: lateral femur I: patella A: extends knee
45
Vastus medialis
O: medial femur I: patella A: extends knee
46
Rectus femoris
O: ilium near acetabulum I: patella A: extends knee
47
Vastus intermedius
O: ilium I: patella A: extends knee
48
Caudofemoralis
O: caudal vertebrae second and third I: patella and fascia of knee A: abducts thigh
49
Gluteus Maximus
O: last sacral vertebra and first caudal vert. I: great trochanter of femur A: abducts thigh
50
Gluteus medius
O: ilium and last sacral vert, first caudal vert I: great trochanter A: abducts thigh
51
Biceps femoris
O: ischial Tuberosity I: patella, tibia and fascia of lower limb A: abducts thigh and lower limb
52
Gastrocnemius
O: distal femur I: calcaneus A: extends foot
53
Soleus
O: fibula I: calcaneus A: extends foot
54
Deltoid muscles
1. Clavobrachialis 2. Acromiodeltoid 3. Spinodeltoid
55
Quadriceps femoris
1. Vastus lateralis 2. Rectus femoris 3. Vastus medialis 4. Vastus intermedius
56
Hamstrings
1. Semimembranosus 2. Semitendinosus 3. Biceps femoris

Anatomy (16 decks)

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