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Equine Upper Respiratory Tract - Horse Anatomy (view source)
Revision as of 15:47, 15 November 2012
, 15:47, 15 November 2012→Frontal Sinus
===Frontal Sinus===
===Frontal Sinus===
The blood supply is provided by the '''ethmoidal artery'''.
The frontal sinus occupies the skull from a point midway between the infraorbital foramen and the medial canthus of the eye to a point midway between the caudal edges of the orbit. The frontal sinus is divided into right and left compartments by a midline septum. The '''conchofrontal sinus''' is formed by a communication between the rostromedial frontal sinus and the dorsal conchal sinus. The '''frontomaxillary aperture''' is a large area of communication between the frontal sinus and the caudal maxillary sinus, this is important to allow drainage. Blood supply to the frontal sinus is provided by the '''ethmoidal artery'''.
===Conchal Sinuses===
===Conchal Sinuses===
The main blood supply is provided by the '''arterial ethmoid rete''', which is an anastamosis between the '''internal and external ethmoid arteries'''. A minor suply is provided by the caudal nasal branch of the '''sphenopalatine artery'''.
The main blood supply is provided by the '''arterial ethmoid rete''', which is an anastamosis between the '''internal and external ethmoid arteries'''. A minor suply is provided by the caudal nasal branch of the '''sphenopalatine artery'''.