Hypophysical fine structure of the channel catfist Ictalurus punctatus / by Everett VanDeveer Davis, Jr.
| Author/creator | Davis, Everett VanDeveer author. |
| Other author | Brinn, J. E. (Jack E.), 1942- degree supervisor. |
| Other author | East Carolina University. Department of Biology. |
| Format | Theses and dissertations |
| Production | Greenville, N.C. : East Carolina University, 1978. |
| Description | v, 65 leaves, 12 leaves of plates : illustrations ; 28 cm |
| Supplemental Content | Access via ScholarShip |
| Subjects |
| Summary | The hypophysial fine structure of Ictalurus punctatus was described from light and electron microscopic observations. Presumptive prolactin, adrenocorticotropic, and thyrotropic cells are described in the rostral pars distalis; presumptive thyrotropic, somatotropic, and gonadotropic cells are described in the caudal pars distalis; and presumptive melanocyte stimulating cells in addition to two other cell types are described in the neurointermediate lobe. Nerve fibers originating in the hypothalamus innervate the hypophysis with two types of neurosecretory fibers, type A and type B. These fibers form synaptic complexes with each of the presumptive endocrine cells. Type B fibers are found in the rostral pars distalis, caudal pars distalis and neurointermediate lobe, whereas the type A fibers are solely located in the neurointermediate lobe. |
| General note | "A thesis presented to the Department of Biology ... in partial fulfillment of the requirements for the degree Master of Science in Biology." |
| General note | Advisor: Jack E. Brinn, Jr. |
| Dissertation note | M.S. East Carolina University 1978 |
| Bibliography note | Includes bibliographical references (leaves 58-65). |
Availability
| Library | Location | Call Number | Status | Item Actions |
|---|---|---|---|---|
| Joyner | University Archives | ASK AT SPECIAL COLLECTIONS DESK | ✔ Available | Request Material |
| Electronic Resources | Access Content Online | ✔ Available |