## Abstract __Rana pipiens__ tadpoles were injected with ^3^Hβthymidine at different stages to label basal cells of the horny beaks, the keratinized oral specializations of many anuran tadpoles. Cells in the column and sheath of the beak are derived from the basal layer. Movement of the labeled cel
On-units in the ipsilateral thalamus ofRana pipiens
β Scribed by Earl Kicliter; Yuzo M. Chino
- Book ID
- 118369841
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 293 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0042-6989
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract Dependence on season of the osmotic water permeability (Lp) of the skin of whole frogs and isolated preparations of frog leg and abdominal skin have been determined. The Lp of frog skin in vivo and in vitro increases during the summer. However, the increase in vivo occurs in April while
Pituitary homogenates (FPH) provoke a cascade of responses in the amphibian ovarian follicle, culminating in progesterone biosynthesis and oocyte maturation (GVBD). Calcium may play an important role as an intracellular second messenger in regulating these physiological responses. Experiments were c