REGULATION OF SPONTANEOUS ELECTRICAL ACTIVITY IN THE ORGANS OF RE-PRODUCTIVE SYSTEM BY OXYTOCIN
K Kazaryan1, N Hunanyan2, M Danielyan3
11Laboratory of Smooth Muscle Physiology, Orbeli Institute of Physiology, Yerevan, Armenia.
Abstract:
The influence of oxytocin on spontaneous electrical activity of the ovarian horn areas as well as the uterine corpus has been studied. Analysis of the main characteristics of activity parameters (amplitude of action potentials, spike generation frequency and total duration of bursts in 1 minute time frame) revealed some notable differences between above mentioned areas. In norm, the highest values of automatism indicators were noted for the left horn. Oxytocin, however, significantly enhances all three parameters. Under its influence, the indicators of the right horn predominate over the values of their own norm, thus emerging among all rhythmogenic loci. Perhaps oxytocin contributes to the activation not only of both fallopian tubes but also of the uterine corpus itself, facilitating the regulation of activity in all three areas.
More Related Videos
09:12Assessing Cellular Stress and Inflammation in Discrete Oxytocin-secreting Brain Nuclei in the Neonatal Rat Before and After First Colostrum Feeding
Published on: November 14, 2018
07:45Recording Electrical Activity from Identified Neurons in the Intact Brain of Transgenic Fish
Published on: April 30, 2013
Related Concept Videos
01:31Neurotransmitters
01:27Feedback Regulation of Calcium Concentration
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
01:22Hormonal Regulation of the Menstrual Cycle
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
01:30Hormonal Control of the Ovarian Cycle
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
01:19Regulation of Hormone Secretion
Humoral...
01:31Overview of the Reproductive System
The gonads, or primary reproductive organs, produce gametes and sex hormones. In males, the testes produce spermatozoa and testosterone, which is responsible for developing secondary male sex characteristics, including a deeper voice, larger muscles, facial and body...