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CellPhysiologicalPhenomena

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55

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 sets up a voltage across a membrane. For more entirely FREE medical tutorials and their accompanying PDFs visit http://www.handwrittentutorials.com  
HelpHippo.com
over 5 years ago
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50
1183

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
over 5 years ago
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7
114

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
over 5 years ago
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1
40

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 5 years ago
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1
83

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
about 5 years ago
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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
over 4 years ago
3
0
27

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
almost 7 years ago
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5
89

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
over 4 years ago
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23

1.2 Cell Physiology

This is my first presentation in PPt2010, I have always used 2003. Yes, I use the word "uuuhhhhh" 500 times, I'll fix that with the next recording... but I w...  
youtube.com
over 4 years ago
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0
19

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
over 4 years ago
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0
17

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
over 4 years ago
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7
184

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
about 4 years ago
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0
8

Prototype Device Allows for Real-Time White Cell Counts Through the Skin, Personalized Chemotherapy |

Team Leuko, an international group collaborating between the Massachusetts Institute of Technology (MIT) and a handful of centers, hospitals, and foundatio  
medgadget.com
about 4 years ago