BIOAP 1100- Muscles for quiz 7

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