What is a resting neuron - Study guides, Class notes & Summaries

-70 mV - the resting membrane potential in most cells is approximately -70 mV - the resting membrane potential of the cell -70 mV - what is the value for the resting membrane potential for most neurons? -90 mV - the membrane charge value when there is no net movement of K+ into or out of the cell 1. blood glucose becomes high 2. pancreas releases insulin 3. insulin binds to receptors on target cells 4. cells take in glucose 5. blood glucose returns to normal - order of events in the body...

Who won a Nobel Prize for his work on digestion? (Ans- Ivan Pavlov When a neuron is at its resting state, what is the status of sodium ions? (Ans- They are not let into the neuron Which of the following is a goal of psychology? (Ans- understand If you wanted to have good clarity and sharpness of vision, you should arrange for light and images to be focused at the (Ans- center of the retina where cones are concentrated. Of all forms of electromagnetic radiation, humans can perce...

Bio 161 Exam 2- Penn State Questions and Answers Already Passed Question 1: What is the definition of current in the context of physiology? - a. movement of ions - b. flow of charged particles - c. chemical reaction - d. electrical discharge - Answer: b. flow of charged particles Explanation: Current refers to the flow of charged particles, such as ions, from one point to another, driven by an electrical potential or voltage. Question 2: What term is used to describe an el...

Biol 335 Exam 2 Questions and Answers Already Passed - Which of the following sequences are in the correct order for a reflex arc? : Stimulus initiates the process, followed by activation of sensory neurons, transmission to interneurons, relay to motor neurons, and finally muscle contraction. - The resting potential of a membrane is more influenced by ______ due to ______. : Potassium ions affect it significantly because of their concentration and permeability. - Neurons with longer lengt...

Nissl Stain - ️️Nissl used basic died to stain the endoplasmic reticulum (RNA), thereby revealing cell bodies. Using the nissl stain, Brodmann found that different areas of the cerebral cortex had distinct cytoarchitectonic appearances. He identified 52 cortical areas, now called Broadmann's areas contralaterality - ️️right brain controls left, left brain controls right. most functions are contralateral 3 types of glial cells - ️️Astrocyte (maintain ionic environment), Oligode...

-70mV inside the cell - A typical resting membrane potential of a neuron is: 1 +20 mV inside the cell 2 -20 mV inside the cell 3 +70 mV inside the cell 4 -70 mV inside the cell .1 mA - What is the max allowable chassis leakage current? 1 10 uA 2 20 uA 3 .1 mA 4 10 mA 0.1 to 10 uV - Electrical amplitude of the SSEPs is: 1 0.1 to 10 uV 2 10 to 100 uV 3 100 to 1000 uV 4 1000 to 10,000 uV 0.3-70 Hz, 15 mm/sec, 3uV/mm - Of the following, the most appropriate filter, timebase, and sens...

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 ...

Maternity and Pediatrics HESI Review 3 Latest Update 2023/2024 (All New Questions Included) Maternity and Pediatrics HESI Review 3 Mother of a preschool-aged child calls school RN to report her child was bitten by a tick while on a school outing last wk. Mother tells RN she removed tick & flushed it down toilet. What action should school RN take? Schedule test for Lyme disease if rash appears. Dr. prescribes phenytoin (Dilantin) for school-aged child diagnosed with tonic-clonic epileps...

1. An unrestricted Commercial Motor Vehicle Driver Medical Certificate must be renewed: A. Annually B. Every Two Years C. Every Four Years D. Whenever the State Issued Driver's License is renewed - B. Every two years 2 years is the max for a healthy person 2. A driver presents with history of an isolated TIA 6 months ago. He has a return to work letter from his primary care provider (PCP) and neurologist. He is taking and tolerating well hydrochlorothiazide and simvastatin. All othe...

What does it mean when the plasma membrane of the neuron is polarized? - Answer - When there is a separation of charge across the membrane. Specifically, a polarized neuron is one where the inside is more negative and the outside is more positive. This is the state when the neuron is at rest. What gives rise to the gradient across the membrane? - Answer - The chemical and voltage gradients of potassium and sodium. Potassium wants to move from inside to outside. Sodium wants to move from out...