Quiz 1 Lab Flashcards
What are the attachements of the cutaneous trunci?
The superficial fascia of the trunk and skin.
What are the origin, insertion and action of the supreficial perctorals?
transverse part of the superficial perctoral m.: First sternebra to the crest of the greater tubercle
descending part of the superficial pectoral m.: First 2-3 sternebrae to the crest of the greater tubercle
action: adduct the limb
What are the origin, insertion, and action of the deep perctoral?
origin: ventral part of sternum
insertion: lesser tubercle of humerous, aponeurosis to greater tubercle
action: Draws the limb caudally, flexes the shoulder, and adducts the limb
What are the origin, insertion, and action of the brachiocephalicus?
cleidocephalicus: clavicular intersection to the cranial mid-dorsal raphe/nuchal crest of the occipital bone and the mastoid part of the temporal bone
cleidobrachialis: clavicular intersection to the cranial border of the humerous
action: advance the limb, extend the shoulder, and draw the head and neck to the side
What are the insertion and action of the omotransversarius?
insertion: spine of scapula
action: advances the limb or flexes the neck laterally
What are the insertion and action of the trapezius?
insertion: spine of the scapula
action: elevates and abducts the forelimb
What are the origin, insertion, and action of the latissimus dorsi?
origin: the thoracolumbar fascia from L1-7 and T6-13 and muscularly the last 2-3 ribs
insertion: the teres major tuberosity and teres major tendon
action: moves the limb caudally and flexes the shoulder joint
What are the origin, insertion, and action of the serratus ventralis?
origin: the transverse processes of C3-7 and ribs 1-7/8
insertion: the dorsal medial part of the scapula.
action: supports the trunk and suppresses the scapula
What is the carotid sheath?
Deep fascia that surrounds the common carotid artery, vagosympathetic trunk, internal jugular vein, and tracheal lymphatic trunk
Define median raphe.
The groove where two identical halves of a structure (left and right bones) have fused
What is the insertion and action of the infraspinatous?
insertion: lateral side of greater tubercle
action: can flex or extend the joint, depending on its angle, abducts the shoulder and rotates the humerous laterally. Stabilize the joint as a collateral ligament
What is the action of the deltoideus?
Flexes the shoulder
What is the action of the rhomboideus?
Elevates the forelimb and adducts the scapula
What is the action of the teres minor?
Flexes the shoulder, rotates it laterally
What are the insertion and action of the supraspinatous?
insertion: the greater tubercle via a tendon
action: extends and stabilizes the shoulder joint
What are the insertion and action of the subscapularis?
insertion: lesser tubercle
action: adducts, extends, and stabilizes the shoulder joint. Rotates it medially
What is the action of the teres major?
Flexes the shoulder joint, rotates it medially
What is the action of the coracobrachialis?
Adducts, extends, and stabilizes the shoulder joint
What is the action of the tensor fasciae antibrachii?
Extends the elbow joint
What are the origin, insertion, and action of the triceps brachii?
long head: caudal border of the scapula
lateral head: tricipital line of the humerous
accessory head: the neck of the humerous
medial head: crest of the lesser tubercle
ALL INSERT ON the olecranon
action: extend the elbow joint
What is the action of the anconeus?
Extends the elbow joint
What are the origin, insertion, and action of the biceps brachii?
origin: the superglenoid tubercle
insertion: the ulnar and radial tuberosities
action: flexes the elbow joint and extends the shoulder joint
What are the origin, insertion, and action of the brachialis?
origin: lateral surface of the humerous
insertion: the ulnar and radial tuberosities.
action: flexes the elbow joint
What are the origin, insertion, and action of the extensor carpi radialis?
origin: lateral supracondylar crest
insertion: the tuberosities on the dorsal side of metacarpals II and III
action: extends the carpal joints
What are the origin, insertion, and action of the common digital extensor?
origin: lateral epicondyle of the humerous
insertion: extensor processes of the distal phalanges of digits II, III, IV, and V
action: extends the joints of those digits and the carpus
What are the origin, insertion, and action of the lateral digital extensor?
origin: lateral epicondyle of the humerous
insertion: proximal parts of all phalanges of III, IV, and V
action: extends the carpal joints and digits III, IV, and V
What is the action of ulnaris lateralis?
abducts the manus and flexes the carpal joints
What is the action of the supinator?
supinates the forarm, flexes the elbow joint
What is the action of the abductor digit I longus?
abducts the first digit, extends the carpal joints
What is the action of the pronator teres?
pronates the forearm, flexes the elbow
What are the origin, insertion, and action of the flexor carpi radialis?
origin: medial epicondyle of the humerous and medial border of the radius
insertion: palmar side of metacarpals II and III
action: flexes the carpal joints
What are the origin, insertion, and action of the superficial digital flexor?
origin: medial epicondyle of the humerous
insertion: palmar surface of the middle phalanges of digits II, III, IV, V
action: flexes the carpal, metacarpophalangeal, and proximal interphalangeal joints of digits II, III, IV and V
What are the origin, insertion, and action of the flexor carpi ulnaris?
ulnar head origin: olecranon
humeral head origin: medial epicondyle of the humerous
insertion: accessory carpal bone
action: flexes the carpus
What are the origin, insertion, and action of the deep digital flexor?
humeral head origin: medial epicondyle of the humerous
ulnar head origin: caudal border of the ulna
radial head origin: medial border of the radius
insertion: the flexor tubercle on the palmar surface of the distal phalanx of all digits
action: flexes the carpal, metaphalangeal, and the proximal and distal interphalangeal joints of the digits
What is the action of the pronator quadratus?
pronates the paw
What is the flexor retinaculum?
Ligament that covers the flexor muscles near the carpal joints and keeps them in place
What is the extensor retinaculum?
Ligament that covers the extensor muscles near the carpal joints and keeps them in place
