Mink muscles: origin, insertion, function Flashcards Preview

Comparative Vertebrate Anatomy > Mink muscles: origin, insertion, function > Flashcards

Flashcards in Mink muscles: origin, insertion, function Deck (42):
1

Sternomastoid

Origin: sternum
Insertion: mastoid process
Function: turns head

2

Clavotrapezius

Origin: back of skull and dorsal midline of neck
Insertion: clavicle
Function: pulls humerus forward

3

Clavodeltoid

Origin: clavicle
Insertion: deltoid ridge of humerus
Function: pulls humerus forward

4

Pectoralis major/minor

Origin: sternum
Insertion: pectoral ridge of humerus
Function: adducts forelimb

5

Cleidomastoid

Origin: clavicle
Insertion: back of skull
Function: turns head

6

Sartorius

Origin: ilium
Insertion: patella, tibia, fascia of knee
Function: extends hindlimb, adducts thigh

7

Tensor fascia lata

Origin: ilium and fascia surrounding hip muscles
Insertion: fascia latae covering gluteus medius and vastus lateralis
Function: extends hindlimb

8

Gluteus maximus

Origin: ilium and sacrum
Insertion: femur near greater trochanter
Function: abducts thigh

9

Caudofemoralis

Origin: transverse processes of second and third caudal vertebrae
Insertion: lateral surface of femur near patella
Function: abducts and extends thigh

10

Semitendinosus

Origin: tuberosity of ischium
Insertion: crest of tibia
Function: extends thigh and flexes hindlimb

11

Vastus lateralis

Origin: greater trochanter of femur
Insertion: vastus medialis and rectus femoris
Function: extends hindlimb

12

Semimembranosus

Origin: tuberosity and ramus of ischium
Insertion: medial epicondyle of femur
Function: extends hip and adducts hindlimb

13

Rectus femoris

Origin: ilium
Insertion: tibial crest
Function: extends hindlimb

14

Gracilis

Origin: pubis and ischium
Insertion: medial surface of knee and hindlimb
Function: adducts thigh

15

Adductor longus

Origin: pubis
Insertion: femur
Function: adducts thigh

16

Adductor femoris

Origin: ramus of pubis and ischium
Insertion: shaft of femur
Function: adducts thigh

17

Vastus medialis

Origin: shaft of femur
Insertion: patella and head of tibia
Function: extends hindlimb

18

External abdominal oblique

Origin: caudal ribs and lumbodorsal fascia
Insertion: linea alba
Function: compresses abdomen and flexes trunk

19

Acromiotrapezius

Origin: spine of axis to spinous process of 4th thoracic vertebra
Insertion: acromion process of scapula
Function: adducts and stabilizes scapula

20

Spinotrapezius

Origin: dorsal midline of thorax
Insertion: scapular spine
Function: rotates scapula backwards

21

Dorsoepitrochlearis

Origin: latissimus dorsi and tres major
Insertion: olecranon process of ulna
Function: extends elbow

22

Triceps brachii

Origin: scapula and lateral surface of humerus
Insertion: olecranon process of ulna
Function: extends elbow and forearm

23

Brachialis

Origin: lateral surface of humerus
Insertion: ulna
Function: flexes elbow

24

Splenius

Origin: spine of first thoracic vertebra
Insertion: lambdoidal ridge of skull
Action: elevates head

25

Longus colli

Origin: first six thoracic vertebrae and transverse process of cervical vertebrae
Insertion: transverse process of sixth cervical vertebra and centra of cranial cervical vertebrae
Function: bends neck ventrally and laterally

26

Rhomboideus cervicis

Origin: spines of first four thoracic vertebrae and back of skull
Insertion: vertebral border of scapula
Function: adducts scapula and pulls it cranially

27

Rhomboideus capitis

Origin: spines of first four thoracic vertebrae and back of skull
Insertion: vertebral border of scapula
Function: adducts scapula and pulls it cranially

28

Atlantoscapularis

Origin: atlas
Insertion: dorsal edge of scapula
Function: pulls scapula forward

29

Levator scapulae ventralis

Origin: atlas
Insertion: metacromion process of scapula
Function: pulls scapula forward

30

Internal abdominal oblique

Origin: lumbodorsal fascia and crural ligament between crest of ilium and pelvis
Insertion: linea alba
Function: compresses abdomen and flexes trunk

31

Transversus abdominis

Origin: inner surface of caudal rib cartilage, transverse processes of lumbar vertebrae, ilium, and crural ligament between ilium and pubis
Insertion: linea alba
Function: compresses abdomen and flexes trunk

32

Rectus abdominis

Origin: pubic tubercle
Insertion: first and second costal cartilages and sternum
Function: compresses abdomen and flexes trunk

33

Extensors of forearm

Origin: humerus
Insertion: metacarpals and phalanges
Function: extends and flexes wrist and fingers

34

Biceps brachii

Origin: cranial edge of coracoid process of scapula
Insertion: bicipital tuberosity of radius
Function: flexes forelimb

35

Flexors of forearm

Origin: humerus
Insertion: metacarpals and phalanges
Function: flexes wrist and fingers

36

Masseter

Origin: zygomatic arch
Insertion: masseteric fossa of mandible
Function: elevates mandible

37

Mylohyoid

Origin: medial surface of mandible
Insertion: basihyal
Function: raises floor of mouth

38

Digastric

Origin: paraoccipital process and mastoid process
Insertion: ventral surface of mandible
Function: depresses mandible

39

Genioglossus

Origin: mandibular symphysis
Insertion: tongue
Function: manipulates tongue

40

Geniohyoid

Origin: mandibular symphysis
Insertion: hyoid apparatus
Function: pulls tongue and hyoid forward

41

Sternohyoid

Origin: cartilage of first rib
Insertion: basihyal
Function: pulls tongue backward

42

Biceps femoris

Origin: tuberosity of ischium
Insertion: dorsal border of tibia and patella
Function: adducts thigh, flexes hindlimb