Membrane potent - Study guides, Class notes & Summaries

Psychopharm Exam 1 practice 170 Questions with Verified Answers The PMHNP is evaluating a 68-year-old man for symptoms of major depression. While assessing the appearance of the patient, an obvious left-sided ptosis is noted. Which cranial nerve is directly linked to this condition? a. III b. IV c. V d. VI - CORRECT ANSWER A A 55-year-old woman has been referred for a psychiatric evaluation for a change in personality, lack of impulse control, and increasingly reckless decision-making....

What is Modified Release? - The term modified-release is used to describe dosage forms that alter the timing and/or the rate of release of a conventional drug product/dosage form - FDA does define this Some Modified Release Systems - - some of these have overlap 1. Delayed release 2. Repeated Release or Repeat Action 4. Extended, Sustained, Long-Acting, Prolonged, Controlled Release 5. Targeted Release Delayed-release - - dosage forms release the drug at a later time than an immedia...

NUR968 Membrane Potentials & Action Potentials - Cell Signaling & Second Messenger Systems Test With Solution...

The Plasma Membrane and Membrane Potential Mod 1 questions with correct answers

What is a hormone and how does it act? - ANSWER-Hormones are chemical messengers that are responsible for regulation. They are secreted into body fluids, mainly blood. It has specific actions on target tissues, which are any tissue that has specific receptors for that particular hormone. What is a paracrine gland? - ANSWER-a secretion that enters interstitial fluid but affects only neighboring cells What is an autocrine gland? - ANSWER-A secretion that only affects the secreting cell. W...

Physiology & Pathophysiology Module 1- Membrane Physiology & Action Potentials (Long) Questions And Answers (A+ Grade) 1. Explain the structure of the membrane - ANS-Cell Membranes are composed primarily of lipids and proteins. Lipids consist of phospholipids, cholesterol, glycolipids - high permeability of membranes to lipid soluble substances (CO2, fatty acids, steroid hormones). Lips are also responsible to the low permeability of water-soluble molecules (ions, glucose, amino acid...

Membrane Physiology and Action Potentials Exam Review A+ Graded Cytoplasm - ANS-Protoplasm that surrounds the nucleus Endoplasmic reticulum - ANS-Transports protein and lipid components Ribosomes - ANS-Sites for protein synthesis Golgi complex - ANS-Processes and packages protein Nucleolus - ANS-Site of ribosomal RNA synthesis Nucleus - ANS-Brain of cell Ribonucleic acid - ANS-

Membrane PotentialDo all living cells have a membrane potential? - correct answer UMM YESH What is a membrane potential? - correct answer Difference in charge inside/outside the cell membrane What is electrical potential? - correct answer When opposite charges are separated they have the potential to do work if allowed to come together What 2 ways can electrical force increase? - correct answer Quantity of charge, decreased charge separation What is the RMP of a typical neuron? - cor...

Resting Membrane Potential Electrical gradients (such as the transmembrane voltage or RMP) only affects what kind of molecules? - correct answer The RMP is needed for the Na+-dependent cotransport of glucose, amino acids & other solutes into cells. 2.) What is the range of magnitudes (in millivolts) of the resting membrane potential (RMP) of human cells? - correct answer The magnitude of the RMP is between - 20 millivolts(mV) and - 100 mV, depending upon cell type & activity. 3.) Is the i...

Resting Membrane Potential & Action PotentialAction Potential - correct answer Abrupt, pulsatile changes in membrane potential. Property of excitable cells that consists of rapid depolarization followed by repolarization. AP's have same size & shape; are propagating; and are "all or nothing". Resting Membrane Potential - correct answer Undisturbed period of action potential when nerve is NOT transmitting impulses. Cell membrane is said to be polarized-inside of cell more negatively cha...

Resting Membrane Potential Electrical gradients (such as the transmembrane voltage or RMP) only affects what kind of molecules? - correct answer Charged molecules What is the range of magnitudes (in millivolts) of the resting membrane potential (RMP) of human cells? - correct answer -20 to -100mv Is the inside of the cell electrically negative, or electrically positive, RELATIVE to the extracellular fluid? - correct answer negative How many volts is a millivolt? - correct answer 10^-3 ...

Quiz 2- Membrane PotentialIons are unequally distributed across the plasma membrane of all cells. This ion distribution creates an electrical potential difference across the membrane. What is the name given to this potential difference? - correct answer Resting Membrane Potential (RMP) Sodium and potassium ions can diffuse across the plasma membranes of all cells because of the presence of what type of channel? - correct answer Leak channels On average, the resting membrane potential is -7...