Voltage gated k channels - Study guides, Class notes & Summaries

TECHGRADES Biol 252 Test 1 questions and answers 100% verified.   3 characteristics of Neurons - correct answer. 1) excitability- respond to stimuli (environmental changes) 2) conductivity- respond to stimuli by producing electrical signals 3) secretion- end of nerve fiber- neurons secretes a neurotransmitter and stimulates next cell Soma - correct answer. cell body axon hillock - correct answer. -beginning of axon -trigger zone -where neuro...

NROB60 Exam Questions With 100% Verified Answers Action Potential - answerDramatic redistribution of electrical charge across membrane. Rapid reversal of charge across membrane such that the interior becomes relatively positive (depolarization caused by influx of sodium) How to determine MP - answerMicroelectrode in cell, voltmetre used to measure electrical potential between tip of intracellular and extracellular microelectrode Membrane potential at rest - answer~-65mV Key parts of Acti...

HUBS 191 Progress Test II Latest Version Graded A Nervous system cells neurons and glia Neuron input zone dendrites and cell body Neuron summation zone axon hillock Neuron conduction zone axon Neuron output zone axon terminals Axon hillock decides whether to pass on information Tract axon bundles in CNS Grey matter cell bodies in CNS White matter myelinated axons in CNS; commissural, projection, and association tracts Ganglion groups of cell bodies in PNS Nerv...

HUBS 191 Nervous System Latest Update 100% Solved Resting membrane potential -70mV Open Voltage gated ion channels are ? at -60mV Inactive Voltage gated ion channels are ? at+30mV Na+ Extracellular fluid as a high ? concentration and is therefore positive in comparison to the ICF K+ Intercellular fluid has a high ? concentration and is therefore slightly negative in comparison to the ECF Depolarisation The change from a negative resting potential to a positive action poten...

T or F: Potassium ions are at high concentrations inside of cells, including neurons - ANSWER-True The action potential is a result of: - ANSWER-the movement of ions The post-synaptic cell can be: - ANSWER-in glands, muscle cells and neurons Th resting potential of a neuron is - ANSWER--60mV T or F: The cell body refers to the part of the neurons that begin at the dendrites and extend to the axon terminal - ANSWER-false T or F: Voltage gated ion channels open when a protein binds ...

Anemia (RBC Deficiency) - Can be due to - - decreased Erythropoiesis (building of RBC) - increased destruction of RBCs - increased destruction of hemoglobin - more common in females than males Can result in - - decreased capacity to carry gases - decreased acid buffering capacity People with anemia can take iron supplements but It will take a period of time before a difference in energy is felt- months AP (action potential) in Heart Muscle Fibers - - rapid depolarization due to Na+ inf...

Wcula PHYS 261 Human Physiology Midterm Exam/76 Questions and Answers 100% Correct; West Coast University lOMoARcPSD|5967629 Wcula PHYS 261 Human Physiology Midterm Exam/76 Questions and Answers 100% Correct; West Coast University Due Jul 11 at 11:59pm Points 76 Questions 76 Available after Jul 6 at 12am Time Limit 120 Minutes Instructions You will have 2 hours to complete this 76-question exam. Attempt History Attempt Time Score LATEST Attempt 1 79 minutes...

CNIM Exam Questions to Re-Study What is the initial event that occurs when the action potential threshold of a neuron is reached? - answer-Voltage gated Sodium channels open What does the sodium potassium pump do? - answer-Pumps K+ into cell and Na out of cell Which of the following has the greatest effect on SSEP Monitoring? -Fentanyl -Diazepam -Pavulon -Sevoflourane - answer--Diazepam Which of the following is a barbituate? -Remifentanil -Methohexital -Curare -Nitrous Oxide...

Which of the following is true concerning passive transport and active transport: - passive transport transfers molecules down an electrochemical gradient while active transport transfers molecules against an electrochemical gradient In a polarized cell, a barrier is created by a specific type of intercellular junction that maintains the separation of membrane proteins and between the apical and the basal sides of the cell. This barrier is called a: - tight junction What secondary structur...

NSG 531 Rush Advanced Pharmacology: Exam 3 Questions With Correct Answers Latest Updated 2024/2025 / Graded A+. what is the difference between cardiac myocyte action potential and that of the CNS or ANS? - ANSWER nerve cell action potential is very short cardiac action potential is much longer they are longer to have adequate filling time in order to get a good contraction for a reasonable bolus of blood the only way this can happen is if the action potential is longer this will also mean ...