Anatomical aspects of the lacrimal gland of the tufted capuchin (Cebus apella).
In the tufted capuchin (Cebus apella) the main lacrimal gland is composed of 2 distinct portions with an intraorbital and extraorbital localisation, interconnected by a bridge of glandular tissue which crosses the lateral orbital wall through the lateral orbital fissure located in the sphenozygomatic suture. The intraorbital lacrimal gland is flattened and extremely thin, with a variable outline. It lies on the upper and outer third of the globe of the eye, and the aponeurosis and the belly of the lateral rectus muscle, extending antero-posteriorly from the upper lateral angle of the orbit midway along the orbital cavity. The extraorbital lacrimal gland is compact, halfmoon-shaped, with 3 surfaces, 3 borders and 2 extremities. It lies in the temporal fossa between the temporalis muscle and the temporal surface of the zygomatic bone, fitting into a depression in this bone, and totally surrounded by adipose tissue. The secretory cells have a flocculent appearance and either low or high density. They possess a basal region containing the nucleus and rich in granular endoplasmic reticulum, and an apical region filled with secretory granules varying in size, form and density.
Veiga Neto
E R
ER
Department of Biology, State University of Maringá, Paraná, Brazil.
Tamega
O J
OJ
Zorzetto
N L
NL
Dall Pai
V
V
D000818:Animals; D002428:Cebus / Q000033:anatomy & histology*; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D005260:Female; D007765:Lacrimal Apparatus / Q000033:anatomy & histology* / Q000166:cytology; D008297:Male; D008854:Microscopy, Electron; D012886:Skull / Q000033:anatomy & histology