Physioex 3 - Study guides, Class notes & Summaries

PhysioEx Exercise 3 Activity Exam Questions and Answers (latest Update 2024)

Neurophysiology of Nerve Impulses. Physioex 3 correctly answered 20231. Explain why increasing extracellular K+ reduces the net diffusion of K+ out of the neuron through the K+ leak channels. - correct answer Increasing the extracellular K+ reduces the steepness of the concentration gradient and so less K+ diffuses out of the neuron. 2. Explain why increasing the extracellular K+ causes the membrane potential to change to a less negative value. - correct answer The membrane potential became...

Physioex Exercise 3 Activity 1 Study Questions and Answers

physioex 3 question with complete solution graded A+ 2023A negative membrane potential was recorded when the tip of the microelectrode was - correct answer both inside the cell body and inside the axon Which of the following caused a change in membrane potential from -70 to -40 in the cell body? - correct answer an increase in extracellular K+ Which of the following has the most negative voltage? - correct answer between the inside of the axon and outside of the axon with control K+ ECF ...

As in the interval between stimuli decreases, the depolarization needed to generate the second action potential a. increases b. stays the same c. decreases d. There is never a second action potential - a. increases What is the approximate concentration of K+ inside a typical cell (intracellular concentration)? a. 150 mM b. 5 mM c. 0 mM d. 15 mM - 150 mM What is the approximate concentration of K+ outside a typical cell (extracellular concentration)? a. 150 mM b. 5 mM c. 0 mM d. 15...

Laboratory Manual Human Anatomy & Physiology Elaine Nicpon Marieb 9780805355178Human Anatomy & Physiology Laboratory Manual Cat Version Eighth Edition Elaine N. Marieb, R.N., PH.D., Holyoke Community College PhysioEx™ Version 5.0 authored by Peter Z. Zao, North Idaho College; Timothy Stabler, PH.D., Indiana University Northwest; and Greta Peterson, Middlesex Community College Publisher: Daryl Fox Sponsoring Editor: Serina Beauparlant Project Editor: Mary Ann Murray Development Manager: Clair...

Physioex Exercise 3 Activity 1-6 Questions And Answers | 100% Correct What is the approximate concentration of K+ inside a typical cell (intracellular concentration)? a. 150 mM b. 5 mM c. 0 mM d. 15 mM 150 mM What is the approximate concentration of K+ outside a typical cell (extracellular concentration)? a. 150 mM b. 5 mM c. 0 mM d. 15 mM 5 mM What is the approximate concentration of Na+ inside a typical cell (intracellular concentration)? a. 150 mM b. 5 mM c. 0 mM d. 15 mM 5...

The neurotransmitter released into the synaptic gap reaches the target cell by - diffusion You have just observed that each action potential in a burst can trigger additional neurotransmitter release. If calcium ions are removed from the extracellular solution, what will happen to neurotransmitter release at the axon terminal? - there will be more neurotransmitter release The end of the axon where it contacts a target is called the - axon terminal Neurotransmitter is released into the synap...

PhysioEx Exercise 3 Activity 1-6 Questions with 100% Correct Answers What is the approximate concentration of K+ inside a typical cell (intracellular concentration)? a. 150 mM b. 5 mM c. 0 mM d. 15 mM - Answer️️ -150 mM What is the approximate concentration of K+ outside a typical cell (extracellular concentration)? a. 150 mM b. 5 mM c. 0 mM d. 15 mM - Answer️️ -5 mM What is the approximate concentration of Na+ inside a typical cell (intracellular concentration)? ©SOPHIA...