Threshold voltage is - Study guides, Class notes & Summaries

Chapter 01: Cellular Biology MULTIPLE CHOICE 1. A student is observing a cell under the microscope. It is observed to have supercoiled DNA with histones. Which of the following would also be observed by the student? a. A single circular chromosome b. A nucleus c. Free-floating nuclear material d. No organelles ANS: B The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its nucleus; thus, the nucleus should be observed. A single circular chromosome ca...

HESI A2 HESI A2 TEST BANK QUESTIONS & ANSWERS (100% APPROVED) BEST VERSION 2023 CONGRATULATIONS! By deciding to take the Health Education Systems (HESI A2) Exam, you have taken the first step toward a great future! Of course, there is no point in taking this important examination unless you intend to do your very best in order to earn the highest grade you possibly can. That means getting yourself organized and discovering the best approaches, methods and strategies to master the ...

BIOS 252 COMP Exam Questions And Answers With Latest Set When compared to a classic lever system, the synovial joints of our Musculoskeletal system play the role of the _________? A. Weight B. Force C. Fulcrum D. Lever E. Resistance ANS C. Fulcrum. Which of the following event will occur when depolarizing graded potential's reach the membrane of the axon Hillock, causing its membrane potential to reach threshold? A. Ligand-gated Ca++ channels close rapidly B. Voltage-gated Ca...

Which position of the shoulder demonstrates the lesser tubercle in profile medially? - ANSWER- Internal rotation In which position of the shoulder is the greater tubercle seen superimposed on the humeral head? - ANSWER- Internal rotation Which carpals are best demonstrated by ulnar deviation/flexion? - ANSWER- Lateral carpals, scaphoid The long. flat structures that project posteromedially from the pedicles are the - - ANSWER- Laminae - ANSWER- Where do the electrons that travel across the ...

PVARP....after a _____ event, refractory for the ______ - ventricle, atrium what is most likely the cause of the under detection of atrial flutter? - p waves falling into PVAB Which two studies showed that RV pacing in patients could lead to more hospitalizations? - DAVID and MOST when are the wedensky effects the greatest - at narrow pulse widths First degree AV block with symptoms of ppm syndrome is what class of indication for pacing - Class IIa Calculation of the wenkbach inte...

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...

Rheobase - the lowest point on a strength duration curve at an infinitely long pulse duration Chronaxie time - the pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration Charge (formula) - Charge= I(current) x T(time) Furman's formula - Energy(microjoules)= I(current)xV(voltage)xT(pulse width) Ohms law formula - Voltage(electromotive force)= I(current/flow of electrons) x R(resistance to current flow in ohms) Functional Refractory P...

CT Registry Review (MIC) Questions and Answers Rated 100% In order for an x-ray photon to be measured it must: 1. enter the detector chamber 2. be absorbed by the detector material 3. be converted to a measurable event *ANS* 1,2,3 Which system component converts the projection attenuation data into the proper digital form for the array processor? *ANS* analog-to-digital converter Which of the following is NOT a function of a PACS system? a. reconstruction of the image from the raw d...

MECP Exam Questions & Answers 2024/2025 What is found on Pin 1 of the OBD II - ANSWERSLSDT CAN High What is found on Pin 9 of the OBD II - ANSWERSLSFT CAN Low Define the XOR gate - ANSWERSBoth inputs can not be TRUE for a TRUE output. If they are the output is FALSE. What is a logic gate - ANSWERSProduce a specific output state based on the condition of one or more inputs. What determines the polarity of the current to trigger a transistor - ANSWERSThe middle letter What are ...

Coulter principle. - Answer-The ability to count and measure the size of particles using an electric circuit. Particles are moved through a small aperture, their presence causes a narrowing of the aperture, which leads to an increase in resistance.By using constant I, According to Ohms law (U= I * R), when R increases, U increases and pulse is generated. Parts and functions of the Coulter-counter - Answer-- Two spaces with a small aperture in between, capillary (contains the electrolyte sol...