Abstract
Two types of follicle composed of non-granulated cells are regularly found in the pars intermedia of the mature jird (Meriones unguiculatus). A few (Type I) are large and cystic with a flattened epithelium bearing some microvilli, but most (Type II) are small and irregular in shape with a cuboidal to low columnar epithelium bearing many microvilli. They are apposed to the granulated chief cells, and contain a strongly PAS-positive material, but no cell debris. The Type II follicles also show crystalloid strands or chains. Villous projections sometimes protrude from the pars nervosa into the follicular lumen. The follicular cells show pinocytotic vesicles, complex interdigitations and invaginated nerves.
Full text
PDF
Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Chatterjee P. Development and cytodifferentiation of the rabbit pars intermedia. I. Fetal and perinatal stages. Cell Tissue Res. 1975 Dec 18;164(4):481–501. doi: 10.1007/BF00219940. [DOI] [PubMed] [Google Scholar]
- Chatterjee P. Development and cytodifferentiation of the rabbit pars intermedia. II. Neonatal to adult. J Anat. 1976 Nov;122(Pt 2):415–433. [PMC free article] [PubMed] [Google Scholar]
- Chatterjee P. Ultrastructural studies on the development of the nerve supply in the rabbit pars intermedia. Cell Tissue Res. 1974;152(1):113–128. doi: 10.1007/BF00224214. [DOI] [PubMed] [Google Scholar]
- HOLMES R. L. The pituitary gland of the female ferret. J Endocrinol. 1960 Feb;20:48–55. doi: 10.1677/joe.0.0200048. [DOI] [PubMed] [Google Scholar]
- Holmes R. L. The infundibular process of rodents of the genus Meriones. Z Zellforsch Mikrosk Anat. 1968;85(2):256–263. doi: 10.1007/BF00325040. [DOI] [PubMed] [Google Scholar]
- Horvath E., Kovacs K., Penz G., Ezrin C. Origin, possible function and fate of "follicular cells" in the anterior lobe of the human pituitary. Am J Pathol. 1974 Nov;77(2):199–212. [PMC free article] [PubMed] [Google Scholar]
- Kumar T. C., Vincent D. S. Fine structure of the pars intermedia in the rhesus monkey, Macaca mulatta. J Anat. 1974 Sep;118(Pt 1):155–169. [PMC free article] [PubMed] [Google Scholar]
- Leatherland J. F., Roland K. Structure of the adenohypophysis in juvenile harp seal, Pagophilus groenlandicus. Cell Tissue Res. 1976 Oct 13;173(3):367–382. doi: 10.1007/BF00220325. [DOI] [PubMed] [Google Scholar]
- Livingston A. Morphology of the perivascular regions of the rat neural lobe in relation to hormone release. Cell Tissue Res. 1975 Jun 24;159(4):551–561. doi: 10.1007/BF00221710. [DOI] [PubMed] [Google Scholar]
- Loh Y. P., Gainer H. Heterogeneity of melanotropic peptides in the pars intermedia and brain. Brain Res. 1977 Jul 8;130(1):169–175. doi: 10.1016/0006-8993(77)90854-x. [DOI] [PubMed] [Google Scholar]
- Vanha-Perttula T., Arstila A. U. On the epithelium of the rat pituitary residual lumen. Z Zellforsch Mikrosk Anat. 1970;108(4):487–500. doi: 10.1007/BF00339655. [DOI] [PubMed] [Google Scholar]