Q&A Thoracic Limb Flashcards Preview

Anatomy > Q&A Thoracic Limb > Flashcards

Flashcards in Q&A Thoracic Limb Deck (114)
Loading flashcards...

Describe the clavicle in the dog and cat

Cat: separate, nonarticular bone; Dog:rudimentary or absent, embedded in brachiocephalicus m


What does the spine of the scapula divide?

Lateral scapula into infraspinous and supraspinous fossae


What is the acromion?

End of the spine of the scapula


What is the caudal projection of the acromion found in the cat?

Suprahamate process


What is the glenoid fossa and its function?

Shallow cavity of the scapula articulating with the humerus to form the shoulder joint


What is the supraglenoid tubercle and what is its function?

cranial process near glenoid cavity for the attachment of the biceps brachii muscle


What and where is the greater tubercle?

Projection located craniolateral to the head of the humerus-point of shoulder


What is the intertubercular (bicipital) groove?

the sulcus between the greater and the lesser humeral tubercles for the biceps brachii tendon


What is the condyle of the humerus?

Entire distal end of the humerus


What arises from the epicondyles of the humerus?

Lateral: extensors of the forearm; medial: epicondyle flexer


What foramen is found in the canine and feline humeri, and what passes through them?

Dog: supratrochlear foramen - nothing; Cat: supracondylar foramen - median n., and brachial vessels


What and where is the styloid process of the radius?

Distal pointed end of the radius, medial


What is the function of the olecranon? That is the common name for it?

Serves as a lever arm for the extensor muscle of the elbow; point of elbow


Name the depression of the ulna that articulates with the humerus and its proximal and distal ends

Trochlear notch (semilunar notch); proximal end= anconeal process; distal end = medial and lateral coronoid process


What and where is the styloid process of the ulna?

Distal end of ulna, lateral side


List the parts of the manus from proximal to distal

Carpus, metacarpus, digits (proximal, middle, distal phalanges and associated sesamoid bones)


What does the term carpus designate?

Carpal bones and compound joint formed by these bones Or the region between the metacarpal bones and the forearm


Name the bones of the carpus and indicate where they are in each row

Proximal row from medial to lateral = radial, ulnar, accessory carpal bones; Distal row = 1-4 medial to lateral


Which carpal bone is located laterally and palmarily and considered a landmark?

Accessory carpal bone


List the bones of each digit and their locations

Proximal, middle and distal phalanges (no middle in dewclaw), 2 proximal sesamoid bones (1 in dewclaw on palmar side of metacarpophalangeal joints), 1 dorsal sesamoid bone for each digit 1-4


What is the fingerlike structure covering the ungual process?

horny claw


What is the shelf of the distal phalanx covering the root of the claw?

ungual crrest


What is the digit that doesn't reach the ground? made up of P1,P3, 1 proximal sesamoid, and MtC1

dew claw


What is the configuration of the shoulder joint?

ball and socket joint (spheroidal)


What type of motion is allowed by the shoulder joint?

all movements but mainly flexion/extension


What protects the biceps tendon in the intertubercular groove?

Extension of the shoulder joint capsule acting as a tendon sheath


what stabilized the shoulder joint?

No true collateral ligaments, but infraspinatus tendon laterally and subscapularis tendon medially help stabilize it


What bones make up the elbow joint?

humeral condyle, trochlear notch of the ulna, head of radius


What type of joint is the elbow (cubital joint) and what action is allowed?

hinge (ginglymus) joint; compound joint; flexion and extension


what powerful ligaments bind sides of all joints of the limb except the shoulder?

lateral and medial collateral ligaments; limits movement to mainly flexion/extension