Related Experiment Video
Updated: Aug 19, 2026

Obtaining Hemocytes from the Hawaiian Bobtail Squid Euprymna scolopes and Observing their Adherence to Symbiotic and Non-Symbiotic Bacteria
Published on: February 11, 2010
Cribra orbitalia in the aborigines of Hawaii and Australia
Abstract:
Cranii of 53 Hawaiian aboriginal infants and children, and 45 from Austrailian aboriginal children were inspected. Cribra orbitalia was present in 22.8% of the former and 26.6% of the latter; osteoporotic pitting (symmetrical osteoporosis; porotic hyperostosis) was also present in the latter. The frequency compares favorably with that found in pre-Columbian North American Pueblo Indians, 24.7%. It is associated with a widespread skeletal involvement suggestive of an active bone marrow. The findings support the concept that cribra orbitalia is related to symmetrical osteoporosis and that it may be associated with a blood disorder.
Related Concept Videos
Conservation of Declining Populations
The Fossil Record
Cranial Bones: Superior and Posterior View
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
Cranial Bones: Lateral View
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
The Hyoid Bone
Accessory Structures of the Eye

