CellPhysiologicalPhenomena

http://www.facebook.com/ArmandoHasudungan Image: https://docs.google.com/file/d/0B8Ss3-wJfHrpRFZfZUlGZWZMa0k/edit?usp=sharing  

Explains how the resting membrane potential is maintained. And how the ion concentration is, as it is at rest. http://www.facebook.com/ArmandoHasudungan PDF: https://docs.google.com/open?id=0B8Ss3-wJfHrpcG9SaDRwSHdpVUk  

Discuss the effects of cancer, as they relate to the underlying cell physiology. In particular, we discuss how genetic mutations lead to the creation of aber...  

Review of the Cell Membrane Potential & the Role of Potassium; Part 1. This Lecture reviews basic electrical concepts (Voltage, Current, electrical Resistanc...  

Stream Cell lineage distribution atlas reveals heterogeneous gland populations in the gastric antrum by BMJ talk medicine from desktop or your mobile device  

According to Guyton's, for the voltage-gated Na+ channels, at voltage range ]-90mV,+35mV[, the activation gate starts to open while the inactivation gate starts to close, only that the inactivation gate is a few 10,000th of a second slower, allowing the influx of Na+. What about Ca++  

During repolarization, the voltage-gated Na+ channels are closed. Would they open then?  

The secretion of glucagon by pancreatic α-cells plays a critical role in the regulation of glycaemia. This hormone counteracts hypoglycaemia and opposes insulin actions by stimulating hepatic glucose synthesis and mobilization, thereby increasing blood glucose concentrations. During the last decade, knowledge of α-cell physiology has greatly improved, especially concerning molecular and cellular mechanisms. In this review, we have addressed recent findings on α-cell physiology and the regulation of ion channels, electrical activity, calcium signals and glucagon release. Our focus in this review has been the multiple control levels that modulate glucagon secretion from glucose and nutrients to paracrine and neural inputs. Additionally, we have described the glucagon actions on glycaemia and energy metabolism, and discussed their involvement in the pathophysiology of diabetes. Finally, some of the present approaches for diabetes therapy related to α-cell function are also discussed in this review. A better understanding of the α-cell physiology is necessary for an integral comprehension of the regulation of glucose homeostasis and the development of diabetes.  

Understanding the chemokine landscape of papillary serous ovarian cancer, the most common form of the disease, is important for the development of new immunotherapy strategies where the goal...  

Stream Cell lineage distribution atlas reveals heterogeneous gland populations in the gastric antrum by BMJ talk medicine from desktop or your mobile device  

http://www.handwrittentutorials.com - This is the first tutorial in a series on Action Potentials. This video looks at how the Na+/K+ ATPase Ion Transporter ...