Forelimb - Anatomy & Physiology - Revision history

Roytwv at 19:33, 27 October 2022

2022-10-27T19:33:04Z

2017-09-01T13:01:34Z

2014-07-02T16:13:11Z

2014-07-02T16:12:37Z

2012-10-31T16:37:41Z

Species Specifics

2012-07-02T18:27:34Z

2012-06-08T00:32:09Z

Metacarpal Joint

2012-05-05T22:11:01Z

Humerus

2012-02-17T20:21:24Z

Metacarpal Joint

2012-02-17T20:11:08Z

Humerus

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 |OVAM = [http://www.onlineveterinaryanatomy.net/content/muscle-flashcards-forelimb-extrinsics-quicktime Muscle flashcards - extrinsic musculature of the canine forelimb]<br>[http://www.onlineveterinaryanatomy.net/content/muscle-flashcards-shoulder-quicktime Muscle flashcards - muscles of the canine shoulder]<br>[http://www.onlineveterinaryanatomy.net/content/muscle-flashcards-elbow-quicktime Muscle flashcards - muscles of the canine elbow]<br>[http://www.onlineveterinaryanatomy.net/content/muscle-flashcards-antebrachium-quicktime Muscle flashcards - muscles of canine antebrachium]
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 [[Category:Musculoskeletal System - Anatomy & Physiology]]
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 '''''Pectoral mm.''''':
 :Innervated by: brachial plexus
 :Two superficial parts, cranial and caudal

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-==Common structures of the Proximal Forelimb and Shoulder==
+==Common Structures of the Proximal Forelimb and Shoulder==
 ===Scapula===

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 ===[[Bovine Forelimb - Anatomy & Physiology|Bovine Forelimb]]===
+{{Template:Learning
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 ==Species Specifics==
 ===[[Canine Forelimb - Anatomy & Physiology|Canine Forelimb]]===
 ===[[Bovine Forelimb - Anatomy & Physiology|Bovine Forelimb]]===

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 ===Metacarpal Joint===
-The metacarpal joint is defined by the presence of palmar [[Bones - Anatomy & Physiology#Types of Bone|'''sesamoids''']], which allow the flexor tendons to pass over the sharp change in angle presented by the joint. They are paired on each digit, with the exception of the first digit where only one exists. A single '''dorsal sesamoid bone''' can also be seen in dogs in digit 2 - 5 inclusive over the same joint between the metacarpal bone and the proximal phalanx. This is not found in ungulates or in the the first digit. However another sesamoid bone exists in the tendon of the abductor pollis longis muscle of the first digit.
+The metacarpal joint is defined by the presence of palmar [[Bones - Anatomy & Physiology#Types of Bone|'''sesamoids''']], which allow the flexor tendons to pass over the sharp change in angle presented by the joint. They are paired on each digit, with the exception of the first digit where only one exists. A single '''dorsal sesamoid bone''' can also be seen in dogs in digit 2 - 5 inclusive over the same joint between the metacarpal bone and the proximal phalanx. This is not found in ungulates or in the the first digit. However another sesamoid bone exists in the tendon of the abductor pollicis longus muscle of the first digit.
 ==Muscles of the Forelimb==

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 ===Humerus===
-The Humerus is the long bone of the forearm, articulating with the scapula to form the shoulder and the radius and ulna to form the elbow.  In situ, it lies obliquely along the ventral thorax and is more horizontal in larger species.
+The Humerus is the long bone of the arm, articulating with the scapula to form the shoulder and the radius and ulna to form the elbow.  In situ, it lies obliquely along the ventral thorax and is more horizontal in larger species.
 The head of the humerus comprises '''greater''' and '''lesser tubercles''', separated by an '''intertubercular groove''' through which runs the tendon of the '''biceps brachii'''. The shaft of the humerus takes on a characteristically twisted shape via a groove carrying the '''brachialis''' and '''radial nerve'''. Laterally, the '''deltoid tuberosity''' is palpable through the skin and connects to the head of the humerus via a ridge and merges distally with the '''crest of the humerus'''. Distally, the humerus culminates in a '''condyle''' which articulates to form the elbow.

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 :In dogs and cats, it articulates with the ulna medially via a trochlea and the radius laterally via a '''capitulum'''
 :Caudally, all species show an '''olecranon fossa''' which articulates with the '''olecranon''' of the ulna
 Medial and lateral epicondyles provide attachment for flexors and extensors of the carpus and digits.