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Where is the origin of the Linea Alba?
Extends from the base of the xiphoid process
What is the insertion of the Linea Alba?
Goes to the prepublic tendon
What is the origin+insertion of the oliquus exte?
Ribs
What is the insertion of the External Oblique muscles?
Brim of the pelvis, linea alba, tuber coxae
Where is the rectus Abdominal Muscles located?
Abdomen
What is the origin of the Rectus Abdominal Muscles?
Costal cartilages
What is the insertion of the Rectus Abdominal Muscles
Brim of the pelvis
What is the function of the Rectus Abdominal Muscles?
Compresses abdominal viscera and flexes the spine
Where are the internal oblique abdominal muscles located?
Ventral to cranial in the abdomen
What is the origin of the Internal Oblique abdominal muscles?
Tuber Coxae
What is the insertion of the Internal Oblique Abdominal muscles?
Caudal ribs, linea alba, and brim of the pelvis
What is the function of the Internal Oblique abdominal Muscles?
Compresses abdominal viscera
Where is the location of the Cremaster Muscle?
Near the vaginal process
What is the origin of the cremaster muscle?
Goes through the spermatic cord
What is the function of the Cremaster Muscle?
Pulls the testicles toward the inguinal canal
What is the location of the transverse abdominal muscle?
Abdomen
What is the origin of the transverse abdominal muscle?
Tuber coax and costal cartilage
What is the insertion of the transverse abdominal muscle?
Linea Alba and the xiphoid process
Wat is the function of the transverse abdominal muscle?
Compresses the abdominal viscera
Where is the external Intercostal Muscle located?
found between ribs
what direction does external intercostal muscle run?
Fibers are directed ventral to caudal
What is the function of the external and internal Intercostal Muscle?
rotates ribs to change volume of thoracic cavity
What is the contraction function of the internal intercostal muscle?
Reduces the volume of the thorax cavity and aids in forced expiration
What is the function of the diaphragm? (contraction and relaxation)
Contractions increase the volume and straightens out
Relaxation brings curvature back to maintain basal levels of ventilation.
What is the function of the M. Iliopsoas? what is it made of?
Flexes the hip.
made of psoas minor+major, iliacus
m. iliopsoas origin and insertion?
origin = ventral lumbar vertebrae, ilium, sacrum
insertion = lesser trochanter of femur
What is the origin of the M. Gluteus Medius?
Wing of the ileum, tuber coxae, sacrum, and sacrosciatic liagment
What is the insertion of the M. Gluteus Medius?
Greater trochanter of the femur
What is the function of the M. Gluteus Medius?
Moves the hip joint. contraction = hindlimb pull back. extend hip joint
What is the origin of the M. Biceps Femoris?
Sacrum, sacrosciatic ligament and ischial tuber
What is the insertion of the M. Biceps Femoris?
Patellar Ligament, Patella, and tibia
What is the function of the M. Biceps Femoris?
Flexion of the stifle and extension of the hock
What is the origin of the M. Semitendinosus?
Sacrum, caudal vertebrae, Sacrosciatic ligament, and ischial tuber
What is the insertion of the M. Semitendinosus?
Cranial tibia, crural fascia, and calcaneal tuber
What is the function of the M. Semitendinosus?
Extension of the hip, stifle, and hock
Where is the M. Gracilis located?
Pelvic Limb
What is the origin of the M. Gracilis?
Pelvic Symphysis
What is the insertion of the M. Gracilis?
Medial aspect of the tibial crest
What is the function of the M. Gracilis?
It is involved in the adduction of the hindlimb
What is the origin of the muscle M. Tensor Fascia Lata?
Tuber Coxae
What is the insertion of the M. Tensor Fascia lata?
Fascia lata
What is the function of the M. tensor fascia lata?
Flexion of the hip and extension of the stifle
Where is the M. Quadriceps Femoris located and what is its origin?
Pelvic Limb and the proximal femur and the body of the ilium
What is the Insertion of the M. Quadriceps Femoris?
Patella
What is the function of the M. Quadriceps Femoris?
Extensor of the stifle
Where is the M. Rectus Femoris located and what is its origin?
Pelvic limb and Ilium just above the acetabulum
What is the insertion of the M.Rectus Femoris?
Patella
What is the function of the m. Rectus Femoris?
Extensor of the stifle
What is the location and origin of the M. Adductor?
Pelvic Limb and the medial femur
What is the function of the M.Adductor?
Adduction of the pelvic limb
Where is the M. Rhomboideus located and what is its origin?
Pectoral Limb and Ligaments of the dorsal midline
What is the insertion of the M. Rhomboideus?
Medial side of the scapular cartilage
What is the function of the M. Rhomboideus?
Lift, advances the scapula (lifts the neck)
Where is the location of the m. Trapezius and what is its origin and insertion?
Pectoral limb, Ligaments of the dorsal midline, scapular spine
What is the function of the M. trapezius?
Lifts, advances and retracts the scapula
M. Serratus Ventralis location
Pectoral Limb
What is the function of the M. Serratus Ventralis
Supports trunk, lifts neck, advances and retracts scapula
Where is the location of the M. superficial pectoral?
Pectoral limb = wing
What is the function of the M. superficial pectoral?
Limb adduction. downward movement
What is the location of the M. Pectoralis Profundus?
Pectoral limb
What is the function of the M. Pectoralis Profundus
Adduction and retraction at limb, advances trunk when limb is weight bearing
What is the location of the M. Latissimus Dorsi?
Lumbar and thoracic region
What is the function of the M. Latissimus Dorsi?
Moves the scapula and humerus, Flexes the shoulder joint
What is the function of the M. Infraspinatus?
Flexes the shoulder
What is the function of the M. Supraspinatus?
Extends the shoulder
Where is the location of the M. Supraspinatus?
Dorsal and inferior to the scapular spine
Where is the location of the M. Infraspinatus?
Dorsal and Posterior to the scapular spine
Where is the location of the M. Bicep Brachii?
Shoulder
Where is the location of the M. Tricep Brachii?
Shoulder
origin and insertion of gastrocnemius?
origin = caudal femoral condyles
insertion = tuber calcanei
What is the function of the M. Bicep Brachii?
Contraction pulls the radius and ulna forward
What is the function of the M. Tricep Brachii?
Elbow Joint
What is the function of the M. Gastrocnemius?
Extends the hock joint
what is contraction function of external intercostal muscles?
ribs rotate up and forward. increase thoracic cavity size
which direction does internal intercostal muscles run?
run ventral to cranial
what is m. transversus abdominus function? which direction?
deepest abdominal muscle. runs ventral
transversus abdominus origin and insertion
origin= deep thoracolumbar fascia
insertion = linea alba
m. biceps brachii funcion?
flexes elbow (or wing), extends shoulder
m. biceps brachii origin and insertion
origin: supraglenoid tubercle of scapula
insertion: cranial aspect of proximal radius+ulna
triceps brachii contraction?
extends elbow, flexes shoulder
triceps brachii origin+insertion?
origin: caudal border of scapula
insertion: olecranon process of ulna
location of m. subscapularis?
deep to scapula
origin and insertion of m. subscapularis
origin: subscapular fossa
insertion: medial humerus
function of m. semimembranosus
hip, stifle, hock extend
origin+insertion of m. semimembranosus?
origin: caudal vertebrae, sacrosciatic ligament, ischial tuber
insertion: medial distal femur, medial proximal tibia
m. supracoracoideus function? where?
elevation in wing. upstroke. inside the m. pectoralis.
m. deltoideus function? where?
flexes shoulder and rotates wing outward. covers dorsal shoulder.
m. iliotibialis function? where?
flexes hip and extends knee and lower leg. sheet-like muscle covering most of thigh
m. ambiens function?
automatic grasping action
m. adductor longus function?
adducts and extends thigh
m. tibialis anterior?
flexes tarsometatarsus forward
m. brachiocephalicus function
lateral neck flexion, shoulder extension, advance limb
m. brachialis function
elbow flexion
m. brachialis origin + insertion
origin = caudal aspect of proximal humerus
insertion = medial aspect of proximal radius
m. pectoralis superficialis origin+insert
origin = sternum, cranial costal cartilages
insert = craniomedial humerus
m. extensor carpi function and location
extends carpus/carpals.
Dorsal cranial of distal forelimb
m. flexor carpi function and location
flexes carpus/carpals
Caudal of distal forelimb
extensor digitorum function and location
Extends digits, flex hock.
origin: femur, tibia, fibula
insert: dorsal phalanx
Flexor digitorum function and location
Flexes digits, extends hock.
Origin: caudodistal femur, tibia
Insert: tuber calcanei, planter phalanx
m. sartorius function and origin, insertion
flex hip, extend stifle.
origin: ilium
insertion: medial fascia of stifle
