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CANINE ANATOMY. Group members Loh Mae Chel (mae chel) Lee Ching Wai (Jazz) Nur Ainsyah Natasya (tasya) Desalini (desa) Muhammad Fikree (piki)

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Presentation on theme: "CANINE ANATOMY. Group members Loh Mae Chel (mae chel) Lee Ching Wai (Jazz) Nur Ainsyah Natasya (tasya) Desalini (desa) Muhammad Fikree (piki)"— Presentation transcript:

1 CANINE ANATOMY

2 Group members Loh Mae Chel (mae chel) Lee Ching Wai (Jazz) Nur Ainsyah Natasya (tasya) Desalini (desa) Muhammad Fikree (piki)

3 HEAD Lee Ching Wai D10A015 Loh Mae Chel D10A016

4 Cutaneous muscles and major fasciae

5 Superficial muscles

6 Deep muscles

7 MuscleOriginInsertionInnervationFunction Muscles of facial expression M. Sphincter colli superficialis Transverse fibers in the superficial fascia of the ventral neck Cervical branch ( R. colli) of the facial n. Tenses and moves the ventral and lateral skin Auricular muscles M. cervicoauricularis superficialis Dorsal median raphe of the neck Dorsal(convex) surface of the auricular cartilage Caudal auricular n., branch of the facial n. Long elevator muscle of the ear M. cervicoscutularis Dorsal median raphe of the neck Caudomedial part of scutiform cartilage Caudal auricular n., branch of facial n. Elevates the ear and tenses the scutiform cartilage M. cervicoscutularis profundus and medius External sagittal crest Lateral border of the auricular cartilage Caudal auricular n., branch of facial n. Turns opening ( conchal fissure) of the auricular cartilage caudomedially

8 MuscleOriginInsertionInnervationFunction M. occipitalis External sagittal crest Superficial fascia of the head Rostral auricular branches of the auriculopalpebral n. Draws scutiform cartilage caudomedially M. interscutularis Transverse fibers passing between the two scutiform cartilages Rostral auricular branches of the auriculopalpebral n. Draws scutiform cartilages medially M. frontoscutularis Rostral continuation of m. interscutularis Rostral auricular branches of the auriculopalpebral n. Draws the scutiform cartilages rostromedially M. scutuloauricularis superficialis Scutiform cartilage Rostral border of the auricular cartilage Rostral auricular branches of the auriculopalpebral n. Turns the auricular cartilage so that its opening (conchal fissure) faces rostralmedially, erects the ear

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10 MuscleOriginInsertionInnervationFunction M. paratidoauricularis Parotid fascia and superficial fascia of cranial neck Ventrolateral at the base of the auricular cartilage Cervical branch ( R. colli) of the facial n. Draws the ear down, lays the ear ‘back’ M. mandibuloauricularis Caudal margin of the ramus of the mandible ventral to the condyle Ventral at the base of the auricular cartilage Caudal auricular n., branch of the facial n.

11 MuscleOriginInsertionInnervationFunction Muscles of the lips and cheeks M. orbicularis oris Closed, sphincter-like muscle at the border of the rima oris; there is no skeletal attachment Dorsal and ventral buccal branches of the facial n. Closes the rima oris ( opening of the mouth) M. buccinator Crossing fibers that pass in the cheek region between the maxilla and the body of the mandible; extends from the angle of the mouth to the level of the rostral border of the masseter m.; interwoven rostrally with orbicularis oris fibers Dorsal and ventral buccal branches of the facial n. Forms the lateral boundary of the oral cavity; compresses the vestibule of the oral cavity, pressing the food into the oral cavity proper; compresses the buccal glands M. zygomaticusScutiform cartilageRadiates into the orbicularis oris at the angle of the mouth Dorsal and ventral buccal branches of the facial n. Draws the angle of the mouth caudally; draws the scutiform cartilage rostroventrally

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13 Muscles OriginInsertionInnervationFunction M. caninus Maxilla, ventral to the infraorbital foramen Upper lip Dorsal and ventral buccal branches of the facial n. Draws the upper lip caudodorsally M. levator labii superoris Maxilla, rostral to the infraorbital foramen Wing of the nostril; upper lip Dorsal and ventral buccal branches of the facial n. Elevates the upper lip and the nasal plane and draws them caudally, widens the opening of the nostril Muscles of the eyelids and nose M. orbicularis oculi A muscular ring passing within the eyelids. It arises dorsally and ventrally from the medial palpebral ligament and encircles the palpebral fissure Auriculopalpebral n., branch of the facial n. Narrowing and closure of the palpebral fissure ( the opening between the eyelids

14 Muscles OriginInsertionInnervationFunction M. retractor anguli oculi Deep temporal fascia Lateral angle of the eye Auriculopalpebral n., branch of the facial n. Draws the lateral angle of the eye caudally M. levator anguli oculi Fascia upon the frontal bone ( frontal fascia) Medially into the upper eyelid Auriculopalpebral n., branch of the facial n. Elevates the medial part of the upper eyelid; erects the tactile hairs M. levator nasolabialis Maxilla in the region of the medial angle of the eye; frontal fascia Lateral nostril and upper lip Auriculopalpebral n., branch of the facial n. Widens the opening of the nostril and raises the upper lip M. malarisDeep fascia of the face Lower eyelidAuriculopalpebral n., branch of the facial n. Draws the lower eyelid ventrally

15 Muscles OriginInsertionInnervationFunction Mandibular muscles Superficial muscles of the throat M. digastricus Paracondylar process ( the jugular process forms its base) Ventral margin of the mandible Ramus digastricus, branch of the facial n. ( caudal belly); mylohyoid n., branch of the mandibular n. (rostral belly) Lowers the mandible, opening the mouth M. mylohyoideus Mylohyoid line on the medial surface of the body of the mandible Median raphe joining the muscles of the two sides ventral to the geniohyoideus m. N. mylohyoideus, branch of the mandubular n. Elevates the tongue, presses it against the palate

16 Muscles OriginInsertionInnervationFunction External muscles of mastication M. temporalisTemporal fossa Coronoid process of the mandible Masticatory n., branch of the mandibular n. Raises the mandible M. masseterZygomatic arch Masseteric fossa of the mandible Masticatory n., branch of the mandibular n. Raises the mandible Internal muscles of mastication M. pterygoideus M. pterygoideus medialis M. pterygoideus lateralis Pterygopalatine fossa(medial pterygoid); wing og the basisphenoid (lateral pterygoid) Pterygoid fossa of the mandible(medial pterygoid), pterygoid fovea of the mandible ( lateral pterygoid) Pterygoid nn., branches of the mandibular n. Synergist of the masseter m., raising the mandible;with unilateral contraction, draws the mandible toward the side of the muscle acting

17 Canine anatomy Thoracic limb NUR AINSYAH NATASYA BINTI ABDUL AZIZ D10A027 (ye..saya la yang paling cute)

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20 Flexor=ms on the side of the limb towards which the joint bends biceps brachii m. flexes the elbow. Extensor=the ms on the opposite side. triceps brachii m.=extensor of the elbow Adductors-ms that tend to pull a limb toward the median plane Abductors=ms that tend to move the limb away from the median plane Agonists(prime movers)are ms directly responsible for producing the desired action. The Antagonists are ms that oppose the desired actions. Synergists are ms that oppose any undesired action of the agonists Eg. in extension of the elbow, a movt. produced by the triceps brachii biceps(agonist for extension), brachii and brachialis are antagonists coz they produce the opposite action, flexion of the elbow.

21 MuscleFunctionOriginInsertionInnervation Deltoideus m.Flexes shoulder spine of scapula Caudal boarder of scapula Deltoid tuberosity of humerus Axillary n. Teres minor m.Flexes shoulderDistal half of caudal boarder of scapula Deltoid tuberosity of humerus Axillary n. Teres major m.Flexes shoulderCaudal boarder of scapula and subscapularis Teres tuberosity of humerus Axillary n. Subscapularis m.Extends shoulder Subscapular fossa of scapula Lesser tuberosity of humerus Axillary n. Subscapular n.

22 MuscleFunctionOriginInsertionInnervation Coracobrachialis m.Extends shoulder Coracoid process of scapula Proximomedial surface of humerus Musculocutane ous n. Biceps brachii m. Extend shoulder Flexes elbow Stabilize carpus Supraglenoid tubercle Radial tuberosity Tendon of extensor carpi radialis m. Musculocutane ous n. Brachialis m.Flexes elbowProximocaudal surface of humerus Proximomedial surface of radius Musculocutane ous n.

23 Supraspinat us m. Extends shoulder Stabilize shoulder Supraspi natous fossa Scapular cartilage and spine Greater and lesser tubercles of humerus Suprascapu lar n. Infraspinat us m. Extends and flexes shoulder Infraspin atous fossa Scapular cartilage and spine Greater tubercle of humerus Suprascapu lar n.

24 MuscleFunctionOriginInsertionInnervation Triceps brachii m. Long headExtends elbow and flexes shoulder Caudal boarder of scapula Olecranon tuber Radial n. Lateral headExtends elbowDeltoid tuberosity Medial headMiddle surface of middle 1/3 of humerus Anconeus m. Extend elbow Raise joint capsule (prevent capsule compression during elbow extension Boarder of olecranon fossa Lateral olecranon Radial n.

25 MuscleFunctionOriginInsertionInnervation Tensor fascia antebrachii m. Extends elbow Tenses forearm Caudal boarder of scapula Deep fascia of forearm and olecranon Radial n. common digital extensor m. Extend carpus Extends digit III Lateral epicondyle of humerus Proximodor sal on proximal phalanx Extensor processes of middle and distal phalanges Radial n. Lateral digital extensor m. Extends metacarpophal anges joint (fetlock) Proximal radius and ulna Proximodorsal on proximal phalanx Radial n.

26 MuscleFunctionOriginInsertioninnervation extensor carpi radialis m. extends the carpal, pastern And coffin joint. lateral supracondylar of the humerus Proximodorsal metacarpal III bone (metacarpal of the index finger). accessory carpal bone deep branch of the radial n. Ulnaris lateralis m. flexes carpusLateral epicondyle of humerus Accessory carpal bone Metacarpal IV (lateral splint bone) Radial n. Extensor carpi obliquus m. (abductor pollicis longus m.) Extends carpusMiddle of radius craniolaterally Proximal metacarpal II Radial n.

27 MuscleFunctionOriginInsertionInnervation flexor carpi radialis m Flexes carpusMedial Epicondyle of Humerus Proximal Sesamoid Bones Median n. flexor carpi ulnaris m. (ulnar & humeral heads) Flexes carpus Medial Epicondyle of Humerus Medial Olecranon Accessory Carpal Bone Ulnar n. superficial digital flexor m. Extends elbow Flexes carpus Flexes digit Medial Epicondyle of Humerus Distal Collateral Tubercles of Proximal Phalanx Proximal Collateral Tubercles of Middle Phalanx Ulnar n.

28 MuscleFunctionOriginInsertionInnervation deep digital flexor m. Humeral headExtends elbowMedial Epicondyle of Humerus Flexor Surface of Distal Phalanx Median n. & Ulnar n. Ulnal headFlexes carpusMedial Olecranon Ulnar n. Radial headFlexes digitMiddle of Radius, Caudal Surface Median n. InterosseousResist overextension of metacarpophal angeal joint Proximocau dal on metacarpal III Palmer carpal ligament Proximal Sesamoid bone Deep branch of ulnar n.

29 extensor carpi radialis m. (1) common digital extensor m. (2) lateral digital extensor m. (3). ulnaris lateralis m. (4) Two minor muscles are the brachioradialis m. (5) abductor pollicis longus m. (6). Fascia has been removed except for the extensor retinaculum (7) that binds digital extensor tendons at the carpus. (Scissors elevate branches of the common digital extensor tendon.)

30 common digital extensor m. (1) lateral digital extensor m. (2) (tendon are elevated by forceps) extensor carpi radialis m. (3) ulnaris lateralis m. (4) Craniolateral antebrachial muscles originate form the vicinity of the lateral epicondyle of the humerus (asterisk). anconeus m. (5), caudal to the epicondyle.

31 medial epicondyle of the humerus (asterisk). deep fascia has been removed from the antebrachium except for flexor retinaculum (1), which binds digital flexor tendons in the carpus. superficial digital flexor m. (2) and its tendon branches are elevated by instruments. flexor carpi ulnaris m. (arrows).

32 superficial digital flexor m. (1) have been reflected. flexor carpi ulnaris m. (2) has humeral and ulnar heads. Latter elevated by the forceps. flexor carpi radialis m. (3) is medially on the limb. deep digital flexor m. (4) it’s tendons are visible distal to the flexor retinaculum (5).

33 deep digital flexor m (1) it’s humeral head is being pulled by forceps. small radial head (2) attaches to the radius. The ulnar head (3) originates from the ulna. deep layer of flexor retinaculum (asterisk) has been cut to release the tendon (arrow) of the deep digital flexor m. superficial digital flexor m. (4); flexor carpi ulnaris m. (5); flexor carpi radialis m. (6); and pronator teres m. (7).

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37 MUSCLEORIGININSERTIONINNERVATIONFUNCTION Middle Gluteal Gluteal fascia and wing of the ileum Trochanter major Cranial gluteal nerve draws the limb caudally and outward Superficial Gluteal Gluteal fascia,lateral part ofsacrum Gluteal tuberosity Caudal gluteal nerve draws the limb caudally Tensor Fascia Latae Tuber coxaePatella and tibia tuberosity by way of the fascia lata and patella ligament Cranial gluteal nerve draw the limb forward toward cranial

38 MUSCLEORIGININSERTIONINNERVATIONFUNCTION SartorialTuber coxae,iliac crest Crural fascia,cranial margin of tibia Femoral nervedraw the limb forward and adduct the limb Semimembran eous Tuber ischiadicum Medial condyle of the femur and tibia Muscular branch of the ischidia nerve Draw the limb medially and caudally and tend to rotate the crus Femoral bicepsTuber ischiadium, sacrotuberous ligament Patella and tibia tuberosity, cranial margin of the tibia Muscular branch of the ischiadic nerve Attachment to the cranial margin of the tibia flexes

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41 MUSCLEORIGININSERTIONINNERVATIONFUNCTION Middle Gluteal Gluteal fascia and wing of the ileum Trochanter major Cranial gluteal nerve draws the limb caudally and outward Superficial Gluteal Gluteal fascia,lateral part ofsacrum Gluteal tuberosity Caudal gluteal nerve draws the limb caudally Tensor Fascia Latae Tuber coxaePatella and tibia tuberosity by way of the fascia lata and patella ligament Cranial gluteal nerve draw the limb forward toward cranial

42 MUSCLEORIGININSERTIONINNERVATIONFUNCTION CoccygealIschiadic spine Transverse process of first four caudal vertebrae Ventral branch of the third sacral spinal nerve Draw the tail to the side of muscle acting with both muscle contracting Femoral quariceps Craniolateral and craniomedial at the femur Tibial tuberosity by mean of the patella ligament Femoral nerve Main extensor of the stiffle joint,fixation of the limb Femoral quadrate Ventromedial surface of the ischium near tuber Caudal surface of femur distal to the trochanteric fossa Ischiadic nerve Rotates the limb,turning its cranial face laterally

43 MUSCLEORIGININSERTIONINNERVATIONFUNCTION Semitendenou s Tuber ischiadicum Medial surface of the tibia Muscular branch of the ischidia nerve Draw the limbs medially and caudally and tend to rotate the crust turning its cranial face medially Semimembran ous Tuber ischiadicum Medial condyle of the femur and tibia Muscular branch of the ischidia nerve Draw the limb medially and caudally and tend to rotate the crus turning its cranial face medially GastrocnemiusDistal femur,medial and lateral supracondyles tuberosity Tuber calcaneiTibial nerveExtensor of tarsal joint,flexor of stiffle joint

44 MUSCLEORIGININSERTIONINNERVATIONFUNCTION Deep digital flexor Lateral condyle of femur Caudal aspect of proximal tibia Flexes the stifle and rotate then leg medially Long fibular Long digital flexor

45 MUSCLEORIGININSERTIONINNERVATI ON FUNCTION sartorialTuber coxae,iliac crest Crural fascia,crani al margin of tibia Femoral nerve draw the limb forward and adduct the limb Cranial tibial adductorVentral pubic tubercle Proximally on the facies aspera Obturator nerve Adductor

46 Lab 5 - Image 5 The largest of the hamstring (caudal thigh) muscles is the biceps femoris m. (1) which originates from the ischium and inserts broadly on fascia lata (2) and crural fascia (3). The muscle has been transected in two locations to facilitate reflecting it. The semitendinosus m. (4) is partially exposed. Other visible (non-hamstring) muscles include: sartorius m. (5), tensor fasciae latae m. (6), middle gluteal m. (7), superficial gluteal m. (8), levator ani m. (9), and external anal sphincter m.(10).

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49 Cutaneous muscle and major fasciae of the canine

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54 Superficial muscle of the canine

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63 Deep muscle of the canine

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72 Thank you


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