TABLE OF CONTENTS
Ox
- Parietal bone of Ox are placed on the posterior and lateral aspects of the cranium.
- They are fused to each other and with the inter-parietal and squamous part of occipital before birth.
- Each is made up of a posterior part and a lateral part.
- The posterior parts of the two sides form the posterior wall of the temporal fossa.
- The junction of the two parts is marked by a prominent parietal crest which is continuous with the temporal crest below and with the frontal crest anteriorly.
- The frontal sinus extends into the parietals.
Horse
- They are located on the dorsal aspect of the skull and form the roof of the cranium.
- The external parietal crest is median in position above but bifurcates below to join the frontal crest on either side.
- The internal face presents along its internal border, inter-parietal crest.
- The posterior border meets the occipital and curves inward and with the temporal forms the parieto-temporal canal. It is not excavated to form frontal sinus.
Dog
- It is rhomboid in outline and is located as in the horse.
- It is extensive and form the greater part of the roof of the cranial cavity.
Fowl
- It is situated on the posterior part of the skull and forms part of the roof of the cranium.
- It is included between the supra-occipital, frontal and temporal.
