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[ICAR-IVRI] VETERINARY ANATOMY ATLAS

VETERINARY ANATOMY.
FROM STRUCTURE TO FUNCTION.

A free veterinary anatomy learning platform for B.V.Sc., M.V.Sc., DVM and veterinary medicine students worldwide, developed at the Veterinary Anatomy Section, ICAR-Indian Veterinary Research Institute, Bareilly—covering VCI/MSVE and international university curricula through regional anatomy, histology, embryology, comparative biomechanics, clinical notes, quizzes and revision.

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Teres Minor
/// STANDARD MORPHOLOGY // MYOLOGY
📝 STANDARD DESCRIPTION:
Type: Intrinsic, Scapulohumeral

Origin: Distal third of caudal border of scapula

Insertion: Teres minor tuberosity of humerus (proximal to deltoid tuberosity)

Function: Flexes shoulder joint and laterally rotates humerus.
📚 DETAILED DESCRIPTION:
THE ROTATOR CUFF ASSISTANT

A small muscle located deep to the deltoid and lateral head of the triceps, part of the functional 'rotator cuff' analog in cattle.

PRECISE LOCATION: Originates from the distal third of the caudal scapular border (caudal angle region), threading deep between larger lateral muscles.

FUNCTIONAL MECHANICS: Flexes the shoulder joint and laterally rotates the humerus. This rotation is subtle in cattle due to fused elbow joints but assists in positioning the hoof during landing.

// COMPARATIVE ANALYSIS

DOG More significant for shoulder rotation; larger relative size.
HORSE Similar small size; often fused with infraspinatus fascia in part.
CLINICAL RELEVANCE
Quadrangular Space: Teres minor helps form the caudal border of the quadrangular space (with subscapularis cranially, teres major caudally)—axillary nerve passes through here.
BIOMECHANICS ENGINE
Comparative Veterinary Biomechanics

The Why of Veterinary Anatomy

Explore the hidden mechanics of why structures are present, absent or modified across domestic and wildlife species—and how each anatomical design supports movement, function and clinical practice.

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