NROC61H3 Chapter : NROC61 W3 McKinley Article.docx

58 views2 pages
21 Apr 2012
School
Department
Course

Document Summary

The focus has been on lamina terminalis -> contains subfornical organ and organum vasculosum of lamina terminalis (ovlt), which are circumventricular organs (no bbb). Ablation of the ovlt and effects on osmoregulatory drinking. Ablation of optic recess cause reduced water drinking but not perm adipsia (reduced drinking) -> osmoreceptors for frist are located in. However, not complete aboltion of osmotically stimulated drinking, so examine role of subfornical organ and median preoptic nucleus in lamina terminalis. Ablation of ovlt or sfo (with infusion of saline solution) did not cause significant reduction of water drinking. Ablation of mnpo also caused reduction in osmoregulatory drinking (although not abolition). Perhaps all parts of lamina terminalis play a part in osmoregulatory drinking and can compensate for damage in 1 part. Also, this is not direct proof for hypertonicity recptors but the fact that these parts are in an area without the bbb indicates that osmoreceptors subserving thirst and in both the ovlt and sfo.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents

Related Questions