headLabel the ultrasound screen for a longitudinal image:95LiverLabel the Ultrasound screen for a transverse image.carotidarteryTHYROID (it lobe)tracheaWhen would you use a high frequency transducer?When would you use a low frequency transducer?anteriorareal time image.FeetposteriorWhat is frame rate? Why is it important in imaging?Prame rate refers to how often the image is updated to produceimagingRapidly moving structureeGenerally, A higher from rated is useful forsons

Transducers with high frequency produces high resolution images but it does not penetrate well. So,…

Answered: When would you use a high frequency…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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Draw the current that you would expect to flow during a voltage clamp experiment on a typical neuron. Voltages and time course are shown. Briefly explain why the currents are inward or outward. Be sure to provide scale bars. You should definitely label the Y axis so that the peak current value is obvious. Draw the Na+ current you would expect if there were physiological ionic gradients. Draw the K+ current you would expect if there are physiological ionic gradients. Draw the K+ current you would expect if the bath solution and the intracellular solution are both 125 mM.
My question is Can you describe 2 examples from the scientific literature of structural synaptic plasticity?
During an Action Potential….. _____ Na+ flows out of the cell _____ Na+ activation gates and inactivation gates are both open _____ Na+ flows into the cell _____ Calcium flows out of the cell _____ K + gates are open _____ Na+ activation gates are closed _____ Na+ inactivation gates are closed _____ K+ flows into the cell _____ K + gates are closed _____ Na+ activation gates and inactivation gates are both closed _____ K + flows out of the cell
name the Commonly UsedRestriction Enzymes?
What does it mean to say a graded potentialcan summate and then spread in a decrementalfashion?
Which of the following describes temporal summation? Two pre-synaptic cells send alternating signals to depolarize and then hyperpolarize. Two pre-synaptic cells send simultaneous signals to hyperpolarize. One pre-synaptic cell sends a signal to depolarize and another cell simultaneously sends a signal to hyperpolarize. One presynaptic cell sends a repeated signal to depolarize. Two pre-synaptic cells send simultaneous signals to depolarize.
The voltage produced by a single nerve or muscle cell is quite small, but there are many species of fish that use multiple action potentials in series to produce significant voltages. The electric organs in these fish are composed of specialized disk-shaped cells called electrocytes. The cell at rest has the usual potential difference between the inside and the outside, but the net potential difference across the cell is zero. An electrocyte is connected to nerve fibers that initially trigger a depolarization in one side of the cell but not the other. For the very short time of this depolarization, there is a net potential difference across the cell, as shown. Stacks of these cells connected in series can produce a large total voltage. Each stack can produce a small current; for more total current, more stacks are needed, connected in parallel. In an electric eel, each electrocyte can develop a voltage of 150 mV for a short time. For a total voltage of 450 V, how many electrocytes must…
What is Transdifferentiation. Explain in your own words with example
During the rising phase of an action potential, which which voltage gated channels are open? Edit View Insert Format Tools Table 12pt v Paragraph BIUA
Patch clamp recording of a single ion channel yields the following results: Holding Potential (mV) Measured Current (pA) -100 -1.0 -50 0.0 0 +1.0 +50 +2.0 +100 +3.0 Part a. What is the equilibrium potential for ion X+1? a.) 0 mv b.)+55 mv c.)-50 mv d.) -60 mv e.) -75 mv Part b. Is ion X+1 in higher concentration inside or outside the cell? a.) inside b.) outside Part c. Calculate the membrane potential at the instant when a neuron has the following relative permeabilities: PK+ = 1.0, PNa+ = 1.0, PCl- = 1.0. Use the ionic concentration values in the picture included. a.) -12 mv b.) -35mv c.) -60 mv d.) +20 mv e.) 0 mv
If you are adding presynaptic or post synaptic inhibitors into outside- out patch clamp and whole cell clamp respectively, would the add the inhibitor into the solution or through the micro electrode?
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When would you use a high frequency transducer? When would you use a low frequency transducer?