week 5 Flashcards
review bones
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what are the attachments of the cutaneous omobrachialis
between the tuber spinae of the scapula and the proximal part of the forearm
what are the attachments of the cutaneous trunci
arises from the superficial fascia of the trunk from the withers to the fold of the flank and inserts on superficial fascia in the shoulder region and with the deep pectoral muscle on the medial surface of the humerus
cutaneous trunci is thickest where?
between umbilicus and stifle and in flank area
cutaneous trunci is innervated by
lateral thoracic nerve
what are the attachments of the latissimus dorsi
originates from the thoracolumbar fascia arising from the thoracic and lumbar vertebrae as far cranially as T3 or T4, and inserts on teres major tuberosity of humerus
what is the function of the latissimus dorsi
draws the humerus dorsally and caudally thus flexing the shoulder joint; if the muscle contracts when the limb is fixed and advanced, the trunk is drawn cranially
dorsoscapular ligament is found in what species
horse
what are the attachments of the dorsoscapular ligament
orginates from the supraspinous ligament and the highest thoracic spines at the withers; deep to rhomboideus;
tissue makeup of dorsoscapular ligament
initially dense CCT dorsally and then transitions to consist mostly of elastic fibers ventrally
serratus ventralis
look up on other fc
descending pectoral muscle attachments
originates from the cartilage of the manubrium and inserts on the crest of the humerus and brachial deltoid tuberosity in the horse
what is the function of the descending pectoral muscle
adducts and advances the thoracic limb
what are the attachments of the transverse pectoral muscle of the horse
originates from the first six costal cartilages and the adjacent sternum and inserts on the fascia of the proximal third of the forearm and on the humerus
what are the attachments of the transverse pectoral muscle in the ruminant
originates from the 2nd to 4th or 6th sternebrae and inserts on the medial fascia of the proximal 3rd of the forearm
what are the attachments of the deep ascending pectoral muscle in the horse
originates from the abdominal tunic, the xiphoid cartilage, ventral aspect of the sternum, and the cartilages of the 4th to 9th ribs
what is the function of the deep ascending pectoral m. in the horse
adducts and retracts the thoracic limb. if the limb is advanced and fixed, it draws the trunk cranially
what are the attachments of the deep ascending pectoral in the ox
originates from the median raphe along the ventral surface of the sternum and inserts on the greater and lesser tubercles of the humerus;
what are the attachments of the deep ascending pectoral in the small ruminant
arises form the second or third sternebrae caudally to the abdominal tunic at the sternal end of the tenth rib and inserts on the fascia over the cranial border of the lesser tubercle of the humerus, the crest and greater tubercle of the humerus, and the tendon of insertion of the supraspinatous
what is the subclavius attachments (horse)
arises from the cranial part of the lateral surface of the sternum and inserts on fascia of the supraspinatous and shoulder region
what are the supraspinatous m. attachments
originates from the supraspinous fossa, the scapular spine, and the distal part of the scapular cartilage; and inserts on the greater and lesser tubercles of the humerus
what is the function of the supraspinatous
extends and stabilizes the shouler joint
what are the attachments of the infraspinatous
originates from the infraspinous fossa and the scapular cartilagel inserts by way to two tendons on the proximal border of the caudal eminence of the greater tubercle of the humerus and the superficial tendon courses over the greater tubercle and inserts distal to it
what are the attachmetns of the deltoideus in the horse
originates from the proximal part of the caudal border of the scapula and scapular spine; inserts on the deltoid tuberosity of the humerus and on brachial fascia
what are the deltoideus m. action
flexes the shoulder joint and abducts the brachium
what are the attachments of the deltoideus m. in the ruminant
scapular part arises from the scapular spine; acromial part arises from the acromion; inserts on the deltoid tuberosity of the humerus and on brachial fascia
what is the attachment of the teres minor
originates from the distal half of the caudal border of the scapula and inserts on the teres minor tuberosity of the humerus
teres minor muscle action
flexes the shoulder joint and abducts the brachium
what are the attachments of the tensor fascia antebrachii
origin on the caudal border of the scapula and from the tendon of insertion of the latissimus dorsi to its insertion on the deep antebrachial fascia and olecranon
what is the function of the tensor fascia antebrachii
tenses the antebrachial fascia and extends the elbow
what head of the triceps comes from the scapula
long head
what are the attachments of the lateral head of the triceps
arises from the deltoid tuberosity and fascia located along the lateral aspect of the brachium
what are the attachments of the medial head of the triceps
middle third of the medial surface of thebody of the humerus
what are the functions of the triceps brachii
extends the elbow joint; flexes the shoulder joint; raises the joint capsule of the elbow to prevent it from being pinched during extension
what are the attachments of the anconeus
arises from the distal third of the caudal surface of the humerus and insrts on the lateral surface of the olecranon
what are the functions of the anconeus
extends the elbow joint; raises the joint capsule fo the elbow to prevent it from being pinched during extension
what are the attachmetns of the biceps brachii
originates on the supraglenoid tubercle and inserts on the radial tuberosity of the radius, the medial collateral ligament of the elbow joint, antebrachial fascia, and the tendon of the extensor carpi radialis muscle
what are the attachments of the lacertus fibrosus
coursing from the biceps brachii tendon to the tendon of the extensor carpi radialis
what is the lacertus fibrosus
a connective tissue structure prominent in the horse
what is the function of the biceps brachii
flexes the elbow joint, fixes the shoulder and elbow in standing, assists the extensor carpi radialis muscle via lacertus fibrosus, and tenses the antebrachial fascia
what are the attachments of the brachialis m.
arises from the proximal third of the caudal surface of the humerus and courses distally along the brachial groove and inserts on the proximomedial surface of the radius
what is the insertion of the brachialis m. in goats
brachialis inserts on the medial surface of the coronoid process of the ulna and distal to the radial tuberosity of the radius
what is the function of the brachialis
felxes the elbow joint
what are the attachments of the coracobrachialis m.
arises from the coracoid process of the scapula and inserts on the teres major tuberosity of the humerus
