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

Based on Question 5: Know the typical electrical and concentration/chemical gradients that exist across the plasma membrane of a neuron for Na+, K+ and Cl-. Based on these gradients, be able to state what direction each ion moves across the membrane - -[Na+]out >> [Na+]in -[K+]out << [K+]in -Differences maintained by Na+ K+ ATPase pump; 3 Na+ ions out, 2 K+ ions in, creates a net loss of positive ions -resting membrane potential is -50 to -80 mV -for K+ and Cl-, concentration and...

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 - answ...

psychopharmacology Objective Assessment Guide Exam Questions and Already graded Solutions and Assured Satisfactions 2024/2025 Drug X passes through the blood-brain barrier via active transport. What does this mean? - correct answer It lacks the properties for passive diffusion and must use mechanisms that penetrate endothelial cell membranes At rest, neurons have an electrical charge across the membrane of - correct answer -70 mV (resting potential), with the inside being more negative tha...

Straighterline A&P II Quiz 2 with Complete Solutions What event(s) occur during the QRS complex of an ECG? a. depolarization of the atria b. repolarization of the ventricles c. depolarization of the atria and repolarization of the ventricles d. depolarization of the ventricles and repolarization of the atria -Answer-d. depolarization of the ventricles and repolarization of the atria Blood in the pulmonary veins returns to the a. right atrium. b. left atrium. c. right ventricle. d. le...

1. Which of the following tissues is always avascular? A) connective tissue D) epithelial tissue B) muscle tissue E) nervous tissue C) skeletal tissue Ans:  D Difficulty:  Medium 2. A scientist who examines tissue changes that might indicate disease is called a A) histologist. D) epidemologist B) radiologist. E) endocrinologist. C) pathologist. Ans:  C Difficulty:  Easy 3. The tissue lining body cavities is A) epithelial tissue. D) m...

Which of the following situations occurs in electrically excitable cells? Select one: a. The sodium-potassium pump moves sodium into the cell. b. The opening and closing of ligand-gated channels cause depolarization. c. Sodium ion channels are opened by high extracellular calcium levels. d. When Na ion channels open, K ion channels close. e. Depolarization causes voltage-gated sodium ion channels to open. + + My Account Question 2 Correct 5.00 points out of 5.00 Question 3 Correct ...

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

BIOS 1300 Exam 4 (2023/2024) Already Passed what are the functions of the nervous system sensory integration motion what is the sensory function of the nervous system recognize changes in environment what is the integration function of the nervous system analysis of sensory information what is the motor function of the nervous system signals to effectors what are the two divisions of the nervous system central and peripheral what is the sensory division of the peripheral nervous system soma...

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As the Metabolic Syndrome progresses towards overt type 2 diabetes, symptoms typically arise chronologically. Which of the following arrangements best represents the chronological order of their development, from earliest to latest. A. Hyperinsulinemia, insulin resistance, central adiposity, retinopathy. B. Central adiposity, insulin resistance, hyperinsulinemia, retinopathy C. Retinopathy, central adiposity, insulin resistance, hyperinsulinemia D. Insulin resistance, hyperinsulinemia, cen...