Hyperpolarization - Study guides, Class notes & Summaries

Psychology Final Exam Questions and Answers 2024 the scientific method - Answer-Ensures that results are empirical, or grounded in objective, tangible evidence that can be observed time and time again, regardless of who is observing Steps of the scientific method - Answer-make an observation, ask a question, form a hypothesis, make a prediction, do an experiment, analyze results, report results hypothesis - Answer-tentative and testable statement about the relationship between two or more...

Neuromuscular Physiology Questions & Answers 2024 1. membrane potential - ANS-result of concentration of ions 2. action potential - ANS-rapid change in the membrane potential 3. stages of action potential - ANS-depolarization, repolarization, hyperpolarization 4. resting stage of action potential - ANS--90 mV 5. depolarization - ANS-rise of potential towards positive due to sodium inflow 6. repolarization - ANS-re-establishment of negative resting stage of RMP 7. RMP - ANS-resting membran...

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 ...

NROB60 FINAL NOTES Exam Questions With 100% Verified Answers Properties of the action potential - answerrising phase overshoot falling phase undershoot What happens when the current reaches threshold? - answergenerate APs at a low rate What happens when current increase? - answerrate of AP generation increases increases the frequency of AP (all or none situation) What does the firing frequency of APs reflect? - answerthe magnitude of the DEPOLARIZING current (since hyperpolarizing wou...

Which current flow listed below causes depolarization of the neuronal cell membrane? sodium efflux chloride influx potassium efflux sodium influx Correct Answers Correct answer sodium influx An EPSP ____________ the likelihood of an action potential occurring. has no effect on has an unknown effect on decreases increases Correct Answers increases A voltage-gated ion channel is opened in response to a change in the membrane potential. phosphorylation. ligand binding. All ...

This is a bundle of axons found in the peripheral nervous system. * Answer-nerve This part of the autonomic system accelerates the heart beat and increases breathing rate. * Answer-sympathetic nervous system The ventral root of a nerve contains what type of neurons? * Answer-motor (efferent) This part of a neuron conducts nerve impulses towards the cell body. * Answer-denderites A neuron going to the bicep of the forearm is part of the: * Answer-A. Central nervous system B. Peripher...

PHYS 506 Anatomy and Physiology Endocrine (Pancreatic Islet Cells) MCQs Answers 2023/24 Pancreatic Islet Cells 186. A patient presents with Whipple triad, including plasma glucose < 60 mg/dL, symptomatic hypoglycemia, and improvement of symptoms with administration of glucose. CT of the abdomen is suggestive of islet cell carcinoma. Which of the following best describes the islets of Langerhans? (A) They are found primarily in the head of the pancreas. (B) They constitute approximately...

Psych 115 Midterm 1 UCLA Exam Questions and Answers 100% Pass What are the three layers of protective layer called? Meninges - Dura Mater (thick outer layer) - Arachnoid (Spongy middle layer) - Pia Mater (thin inner layer) What is the organ that constantly manufactures the CSF? choroid plexus, which resides in hollow tubes and cavities called ventricles Where does the action potential originate? Integration zone (or active zone) What are the three types of neurons? Multipo...

acetylcholine - cholinergic, contains nicotinic and muscarinic action potential process - stimulus arrives to a neuron at resting membrane potential, depolarization or hyperpolarization occurs, if depolarization and reaches threshold then gated sodium channels open and influx of Na+, leads to hyper polarization, Ka+ gated channels open, depolarization and then back to resting membrane potential agonist - a molecule that increases a neurotransmitter's action amygdala - emotion regulation ...

"Staircase" and "warm up" are alternative names for ___________, an increased muscle response to a constant stimulus. - correct answer treppe The are found at the initial segment and conductive segment of the neuron. a. voltage-gated Ca++ channel b. voltage-gated K+ channel c. chemically gated K+ channel d. chemically gated Cl- channel e. voltage-gated Na+ channel - correct answer b and e ...