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Canine Pelvic Limb and Abdominal Muscles
Sydney Uni 1st year
44
Veterinary Medicine
Graduate
06/05/2010

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Cards

Term
m. external abdominal oblique
Definition

O: 2 parts: middle parts of the 4th and 5th to the 12th rib

adjacent deep trunk fascia

 

I: linea alba

 

A: compression and support of abd viscera

 

fibres run caudoventrally

Term
m. internal abdominal oblique
Definition

O: principle lamina of the thoracolumbar fascia caudal to the last rib

orginates mainly from the tuber coxae of illium

 

I: linea alba

 

A: compression and support of abd viscera

 

flat muscles lying profundus to the m. external abdominal oblique; almost completely covered by external oblique.

fibres run cranioventrally

Term
m. transverse abdominis
Definition

O: 8th costal cartilidge; last lumbar transverse process, and tuber coxae

 

I: linea alba

 

A: compression and support of abd viscera

 

Deepest Abd muscle

Term
m. rectus abdominis
Definition

O: arise by broad, flat tendon from the sternum and 1st costal cartilage of the rib

 

I: units with tendon of the origin of m. pecineus and the prepubic tendon

 

A: functions dependent on abd press (expiration, parturition, urination), support of abd viscera, draw pelvis forward, flexion of back

 

Fibers run longitudinally

Term
m. superficial gluteal
Definition

O: lateral sacrum


I: gluteal tuberosity of ilium


A: extensor of hip joint; draws limb caudally


small flat, almost rectangular

Term
m. middle gluteal
Definition

O: iliac crest

 

I: trochanter major of femur

 

A: extension of hip joint

Term
m. tensor fasciae latae
Definition

O: aponeurosis of the m. gluteus medius

tuber coxae

 

I: patella and tibial tuberosity

 

A: felxion of hip joint

extension of stifle joint

 

triangular muscle attach proximally to the tuber coxae

 

Term

m. sartorius

cranial belly

Definition

O: iliac crest and tuber coxae

 

I: cranial tibia

 

A: flexor of hip; extensor of stifle

 

 

Term
m. biceps femoris
Definition

O: 2 unequal heads:

superficial: ventrocaudal end of sacrotuberous ligament and partly from lateral angle of the ischial tuberosity

deep: ventral side of lateral angle of the ischiatic tuberosity

 

I: medial surface of the tibial crest

 

A: superficial: hip extensor

profundus: tarsal joint extension

Term
m. piriformis
Definition

O: ventral sacrum

 

I: greater trochanter of femur

 

A: extensor of hip joint; abducts limb and draws it caudally

 

lies caudal and medial to the m. gluteus medius. completely covered by m. gluteus superficalis

Term
m. deep gluteal
Definition

O: laterally from the shaft of ilium near the ischiatic spine

 

I: greater trochanter, distal to the insertion of the m. middle gluteal

 

A: extension and some abduction of the hip joint

 

covered by middle gluteal and piriformis

Term
m. internal obturator
Definition

O: obturator foramen of pubis

 

I: trochanteric fossa of femur

 

A: rotates limb-turns cranial face laterally, extends hip

Term
m. external obturator
Definition

O: obturator foramen of pubis

 

I: trochanteric fossa of femur

 

A: rotates limb-turns cranial face laterally, adducts limb

 

fan-shaped muscle that covers the obturator forman externally

Term
mm. gemelli
Definition

O: outer surface of the ramus of the ischium in the arch

 

I: trochanteric fossa

 

A: outward rotation of hip

Term
mm. quadratus femoris
Definition

O: ventromedial ischiatic tuberosity

 

I: caudal to trochanteric fossa of femur

 

A: extension and outward rotation of hip joint

Term
m. coccygeus
Definition

O: ischiatic spine

 

I: transverse processes of the first 4 coccygeal vertebrae

 

A: wags tail and draws it down

 

 

Term
m. levator ani
Definition

O: pelvic surface of pubis and ischium

 

I: coccygeal vertebrae

 

A: draws tail ventrally

 

lies cranial and medial to coccygeus

broad triangular muscle laterally

Term
m. semitendinosus
Definition

O: ventral surface of the ischiatic tuberosity 

 

I: medial tibia

 

A: extension of the hip and tarsal joints

flexion of stifle joints

 

lie in teh caudal part of the thigh between cranial and lateral parts of the m. biceps femoris and the lateral parts of the m. biceps femoris

Term

m. semimembranosus

(2 bellies)

Definition

O: ventral surface of the ischiatic tuberosity

 

I: adjacent distal end of the medial lip of hte femur

caudal part of the medial condyle

 

A: extend the hip when the foot is placed on a solid substrate

flex the stifle

Term
m. adductor magnus et. brevis
Definition

O: pelvic symphysis

 

I: femur

 

A: adductor

Term
m. gracillis
Definition

O: pelvic symphysis

 

I: calcaneal tuberosity

 

A: adduction of the thigh; hip and hock extension

 

extensive, broadmuscular sheet

found in the superficial layer of the caudal portion of the inner surface of the thigh

Term
m. adductor longus
Definition

O: pubic tubercle

 

I: lateral lip of the femur

 

A: adduction and extension of hip

 

encroaches upon proximal part of the m. pectineus

Term
m. vastus medialis
Definition

O: proximal femur

 

I: tibial tuberosity

 

A: extensor of stifle

 

one of m. quadriceps femoris bellies

 

Term
m. vastus intermedius
Definition

O: cranial medial femur

 

I: tibial tuberosity

 

A: extensor of the stifle

 

covered by vastus lateralis

Term
m. vastus lateralis
Definition

O: cranial-lateral femur

 

I: (same for all quads) tibial tuberosity

 

A: extensor of stifle

Term
m. rectus femoris
Definition

O: caudoventral iliac spine

 

I: (same for all quads) tibial tuberosity

 

A: extensor of stifle

Term

m. sartorius

caudal belly

Definition

O: lliac crest

 

I: cranial tibia

 

A: flexor of stifle

 

lies close beside the cranial belly

 

 

Term
m. pectineus
Definition

O: iliopubic eminence

 

I: femur

 

A: adductor of limb, flexor hip

 

spindle shaped body, circular cross-section

Term
m. cranial tibial
Definition

O: lateral tibia

 

A: flex tarsus and rotate the paw laterally

 

superficial, flatten

Term
m. long digital extensor
Definition

O: femur

 

A: extension of the digits, flexion of the tarsus

 

spindle shaped

Term
m. peroneus longus (fibularis)
Definition

O: lateral condyle of tibia; fibula

 

I: 4th tarsal and on the plantar surfaces of all metatarsals

 

A: rotation of hindpaw medially, flexion of tarsus

 

lies on proximal half on the lateral surface of the crus

 

Term
m. lateral digital extensor
Definition

O: proximal fibula

 

A: extension and abduction of digit V

Term
m. extensor hallicus longus
Definition

O: cranial border of the fibula and on the interosseous membrane

 

I: aponeurosis of metatarsals and exceptionally ends on the rudiment of the 1st digit

 

A: extension of digit I and II

 

lies directly on the tibia

Term

m. peroneus brevis

(fibularis)

Definition

O: lateral surface of the distal two-thirds of the fibula and tibia

 

I: proximal end of the metatarsal V

 

A: flexion of the tarsal joint

Term

m. gastrocnemius

lateral head

Definition

O: lateral supercondylar tuberosity of the femur

 

I: tuber calcanel

 

A: extend tarsal joint; flexion of stifle joint

Term
m. deep digital flexor
Definition
lies on the caudal surface of the tibia, covered by gastrocnemius and the superficial digitor flexor
Term

m. digital flexor digit I (hallucis) longus

(lateral head)

Definition

O: caudal surface of the proximal fibula and proximal caudolateral tibia

 

A: flexion of the digits

 

laterally located

Term
m. flexor digitorium longus
Definition

O: head of the fibula

 

I: bases of distal phalanges

 

A: flexion of the digits

 

medially located; short, spindled shaped

Term
m. caudal tibial
Definition

O: medial part of the proximal end of fibula

 

I: medial ligamentous masses of the tarsus

 

A: extension of the tarsus; outward rotation of the foot

 

between the m. poplieus and m. flexor digit I longus.

covered by m. flexor digitorum longus and lies o the caudal surface of the tibia

Term

m. gastrocnemius

medial head

Definition

O: medial supercodylar tuberosity of the femur

 

I: tuber calcanei

 

A: extend tarsal joint; flexion of stifle joint

Term
m. superficial digital flexor
Definition

O: lateral supercondylar tuberosity of the femur

 

I: tuber calcanei

 

A: flexion of the digits; extension and fixation of the tarsus; flexion of the stifle joint

Term
m. popliteus
Definition

O: plantar surface of femur

 

A: inward/medial rotation of the leg relative to the femur

 

triangular muscle; covers the joint capsule and the medial half of the proximal 3rd of the tibia

Term
m. extensor digitorum brevis
Definition

O: distal part of the fibular tarsal bone

 

I: mm. interossei

 

A: extension on digits

 

flat, lies on the distal row of the tarsal bones and on the metatarsal bones

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