Category

50
1187
Cardiology - Heart Physiology I (Cardiac Myocyte and Membrane Potential)
http://www.facebook.com/ArmandoHasudungan
Image: https://docs.google.com/file/d/0B8Ss3-wJfHrpRFZfZUlGZWZMa0k/edit?usp=sharing
Nicole Chalmers
almost 7 years ago

7
116
Nervous System - Resting Membrane Potential
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
Nicole Chalmers
almost 7 years ago

1
42
Effects of Cancer 1
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...
YouTube
over 6 years ago

1
85
MEMBRANE POTENTIAL & THE ROLE OF POTASSIUM; PART 1 by Professor Fink
Review of the Cell Membrane Potential & the Role of Potassium; Part 1. This Lecture reviews basic electrical concepts (Voltage, Current, electrical Resistanc...
YouTube
over 6 years ago

1
23
Cell lineage distribution atlas reveals heterogeneous gland populations in the gastric antrum
Stream Cell lineage distribution atlas reveals heterogeneous gland populations in the gastric antrum by BMJ talk medicine from desktop or your mobile device
SoundCloud
about 6 years ago

0
30
What is the membrane potential range at which the voltage-gated Ca++ channels are open?
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++
Rama Raja
about 8 years ago

0
21
Would there be an action potential, if during repolarization there is an increase of membrane potential to the threshold level using the current clamp?
During repolarization, the voltage-gated Na+ channels are closed. Would they open then?
Rama Raja
about 8 years ago

5
100
Physiology of the pancreatic α-cell and glucagon secretion: role in glucose homeostasis and diabetes
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.
joe.endocrinology-journals.org
almost 6 years ago

0
20
Mapping of ovarian cancer tumor cell microenvironment highlights key role of T cells
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...
medicalnewstoday.com
almost 6 years ago

0
18
Cell lineage distribution atlas reveals heterogeneous gland populations in the gastric antrum
Stream Cell lineage distribution atlas reveals heterogeneous gland populations in the gastric antrum by BMJ talk medicine from desktop or your mobile device
feeds.bmj.com
almost 6 years ago

7
186
Action Potentials 1 - Resting Membrane Potential
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 ...
youtube.com
over 5 years ago