Equine Osteology Flashcards
what is another name for the scapula of a horse
pectoral girdle
how is the scapula / forelimb attached to the rest of the body
synsarcosis
(bone to the body through muscle attachments)
what group of muscles attach the forelimb to the body
extrinsic muscles
what creates the ‘arm’ of the horse
humerus
what bones make up the forearm
radius & ulna
what bones make up the manus
- carpal bones
- metacarpal bones
- phalanges (all 3)
what is prominent of the equine scapula
scapular cartilage
what is the blunt process of the scapula
spine
what is not present on the scapula at the distal end that is present in the cat and dog
acromion is not present in the horse
what scapular tuberosity is present in the horse and pig but less developed in the ox and cat
spinal tuber / tuberosity
what is blunt but well developed on the scapula of the horse on the distal end
supra-glenoid tubercle
what is the origin of the Biceps brachii m.
supra-glenoid tubercle
what is the ratio between the supraspinous and infraspinous fossas
1:2
what form the dorsal border of the scapula
scapular cartilage
what is the result of the well formed scapular cartilage
elongated dorsal border
what is present on the proximal extremity of the humerus
- greater & lesser tubercle
- intermediate tubercle
- intertubercular groove / bicipital groove
what structure is unique to the horse humerus
intermediate tubercle
True or False:
The greater and lesser tubercles of the humerus are not divided
FALSE
They both have a cranial and caudal part to them
what divides the intertubercular groove
intermediate tubercle
what are the characteristics of the body of the humerus
- twisted shaft
- brachial groove / musculospiral groove
- more deep and twisted
True or False:
The radius and ulna of a horse are fused
true
because of the fusion of the radius and ulna, what is not a possible movement of the equine forelimb
pronation & supination (rotation)
which bone of the radius/ulna is well developed
radial tuberosity
what bone is not fully developed in the antebrachium
ulna