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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
Q

Spinodeltoid

A

O: scapular spine

I: proximal end of humerus

A: raises and rotates humerus

25
Q

Triceps brachii lateral head

A

O: axillary border of humerus

I: Olecranon process of ulna

A: extends elbow

26
Q

Brachioradialis

A

O: mid humerus

I: distal radius

A: rotates radius, supinates forelimb

27
Q

Supraspinatus

A

O: supraspinous fossa of scapula

I: greater tubercle of humerus

A: extends humerus

28
Q

Infraspinatus

A

O: infra spinous fossa of scapula

I: greater tubercle of humerus

A: rotates humerus outward

29
Q

Subscapularis

A

O: subscapular fossa of scapula

I: lesser tubercle of humerus

A: addicts humerus

30
Q

Rhomboideus

A

O: cervical and thoracic vertebral spines

I: vertebral border of scapula

A: pulls scapula posteriorly

31
Q

Rhomboideus capitus

A

O: occipital bone

I: vertebral border of scapula

A: pivots scapula

32
Q

Teres major

A

O: scapula axillary border

I: proximal humerus

A: rotates humerus and draws it posteriorly

33
Q

Triceps brachii medial head

A

O: axillary border of humerus

I: Olecranon process of ulna

A: extends elbow

34
Q

Sartorius

A

O: iliac crest

I: tibia, patella, knee fascia

A: adducts and rotates thigh, extends knee

35
Q

Gracilis

A

O: ischium and pubic symphysis

I: medial surface of tibia

A: adducts leg and moves leg posteriorly

36
Q

Tibialis anterior

A

O: proximal tibia and fibula

I: first metatarsal

A: flexes foot

37
Q

Iliopsoas

A

O: ilium and lumbar vertebrae

I: lesser trochanter of femur

A: moves thigh foreword and rotates outward

38
Q

Pectineus

A

O: anterior pubis

I: proximal end of femur

A: adducts thigh

39
Q

Adductor longus

A

O: pubis

I: femur

A: adducts thigh

40
Q

Adductor femoris

A

O: pubis

I: femur

A: adducts thigh

41
Q

Semimembranosus

A

O: ischial Tuberosity

I: tibia; proximal end and femur medial Epicondyle

A: extends thigh posteriorly

42
Q

Semitendinosus

A

O: ischial Tuberosity

I: medial tibia

A: flexes knee

43
Q

Tensor fascia latae

A

O: iliac crest

I: fascia latae

A: flexes thigh

44
Q

Vastus lateralis

A

O: lateral femur

I: patella

A: extends knee

45
Q

Vastus medialis

A

O: medial femur

I: patella

A: extends knee

46
Q

Rectus femoris

A

O: ilium near acetabulum

I: patella

A: extends knee

47
Q

Vastus intermedius

A

O: ilium

I: patella

A: extends knee

48
Q

Caudofemoralis

A

O: caudal vertebrae second and third

I: patella and fascia of knee

A: abducts thigh

49
Q

Gluteus Maximus

A

O: last sacral vertebra and first caudal vert.

I: great trochanter of femur

A: abducts thigh

50
Q

Gluteus medius

A

O: ilium and last sacral vert, first caudal vert

I: great trochanter

A: abducts thigh

51
Q

Biceps femoris

A

O: ischial Tuberosity

I: patella, tibia and fascia of lower limb

A: abducts thigh and lower limb

52
Q

Gastrocnemius

A

O: distal femur

I: calcaneus

A: extends foot

53
Q

Soleus

A

O: fibula

I: calcaneus

A: extends foot

54
Q

Deltoid muscles

A
  1. Clavobrachialis
  2. Acromiodeltoid
  3. Spinodeltoid
55
Q

Quadriceps femoris

A
  1. Vastus lateralis
  2. Rectus femoris
  3. Vastus medialis
  4. Vastus intermedius
56
Q

Hamstrings

A
  1. Semimembranosus
  2. Semitendinosus
  3. Biceps femoris

Anatomy (16 decks)

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