4,503
edits
Changes
Jump to navigation
Jump to search
→Thoracic Limb
The spine of the scapular ends in a bony prominence ventrally, known as the '''acromion'''. In the horse, this structure becomes smaller distally. A second bony prominence, the '''tuberosity''', exists dorsal to the middle of the scapular spine.
The spine of the scapular ends in a bony prominence ventrally, known as the '''acromion'''. In the horse, this structure becomes smaller distally. A second bony prominence, the '''tuberosity''', exists dorsal to the middle of the scapular spine.
===[[Forelimb - Anatomy & Physiology#Humerus|Humerus]]===
===[[Forelimb - Anatomy & Physiology#Humerus|Humerus]]===
*The '''lesser tubercle''' is divided into two parts.
*The '''lesser tubercle''' is divided into two parts.
*The '''teres major tuberosity''' is found on the medial shaft, just proximal to its middle.
*The '''teres major tuberosity''' is found on the medial shaft, just proximal to its middle.
===[[Forelimb - Anatomy & Physiology#Radius and Ulna|Radius and Ulna]]===
===[[Forelimb - Anatomy & Physiology#Radius and Ulna|Radius and Ulna]]===
#Proximally (mediolaterally):radial, intermediate, ulnar and accessory bones.
#Proximally (mediolaterally):radial, intermediate, ulnar and accessory bones.
#Distally: 1st carpal bone is small or absent, II-IV are all present.
#Distally: 1st carpal bone is small or absent, II-IV are all present.
===[[Forelimb - Anatomy & Physiology#Metacarpals and Metatarsals|Metacarpals and Metatarsals]]===
===[[Forelimb - Anatomy & Physiology#Metacarpals and Metatarsals|Metacarpals and Metatarsals]]===
Horses are '''perissodactyl''' '''unguligrade''' animals. Unguligrade means that horse's bear their weight on a horny covering (hoof) that surrounds their distal phalanx, perissodactyl means that they have only one weight-bearing digit. They are virtually identical in their structure in the hindlimb and forelimb. The main differences are in the forelimb we have metacarpals and the metacarpophalangeal joint, the hindlimb equivalents are the metatarsals and the metatarsophalangeal joint. Also in anatomical planes we use the term palmar for forelimb and plantar for hindlimb. These terms are all interchangable in the below article depending on whether you want to talk about the fore or hindlimb.
Horses are '''perissodactyl''' '''unguligrade''' animals. Unguligrade means that horse's bear their weight on a horny covering (hoof) that surrounds their distal phalanx, perissodactyl means that they have only one weight-bearing digit. They are virtually identical in their structure in the hindlimb and forelimb. The main differences are in the forelimb we have metacarpals and the metacarpophalangeal joint, the hindlimb equivalents are the metatarsals and the metatarsophalangeal joint. Also in anatomical planes we use the term palmar for forelimb and plantar for hindlimb. These terms are all interchangable in the below article depending on whether you want to talk about the fore or hindlimb.