Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN: 9781285866932
Author: Lauralee Sherwood
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 4, Problem 3SQE
Summary Introduction
To calculate:
The pump current for sodium ions ( μA/cm2) in the given condition.
Introduction:
An action potential can be defined as a quick rise and a subsequent decrease in voltage or membrane potential through a cellular membrane with a distinguishing pattern. Synapse is a junction present between the two neurons.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Write the equation that defines the contributions of the three determinants of resistance?
according to Poiseuille’s law, the drop in pressure, DP (dynes/cm2 ), across a tube oflength, L, and diameter, d, at a flow rate of Q (cm 3 /s), for a fluid of viscosity, h (poise) isgiven by:DP = 129LhQ/pd4Compute DP for a tube 2 m long, 1 mm in diameter, with a flow rate of 1 L/min and aliquid viscosity of 2 centipoise.
Give a brief account of the counter current mechanism.
Chapter 4 Solutions
Human Physiology: From Cells to Systems (MindTap Course List)
Ch. 4.1 - Name the two types of excitable tissue.Ch. 4.1 - Prob. 2CYUCh. 4.1 - State the factor responsible for triggering gate...Ch. 4.2 - Prob. 1CYUCh. 4.2 - Prob. 2CYUCh. 4.2 - Prob. 3CYUCh. 4.3 - Draw and label an action potential, indicating the...Ch. 4.3 - Prob. 2CYUCh. 4.3 - Prob. 3CYUCh. 4.3 - Prob. 4CYU
Ch. 4.4 - Explain why synapses operate only in the direction...Ch. 4.4 - Prob. 2CYUCh. 4.4 - Prob. 3CYUCh. 4.4 - Prob. 4CYUCh. 4.5 - Define target cell.Ch. 4.5 - Distinguish among the four types of extracellular...Ch. 4.5 - Outline the three general means by which binding...Ch. 4.5 - Prob. 4CYUCh. 4.6 - Distinguish between cytokines and eicosanoids.Ch. 4.6 - Discuss the roles of phospholipase A2,...Ch. 4.6 - Prob. 3CYUCh. 4.7 - Prob. 1CYUCh. 4.7 - Prob. 2CYUCh. 4.7 - Prob. 3CYUCh. 4.8 - Prob. 1CYUCh. 4.8 - Prob. 2CYUCh. 4 - Conformational changes in channel proteins brought...Ch. 4 - Prob. 2RECh. 4 - Prob. 3RECh. 4 - Prob. 4RECh. 4 - Second-messenger systems ultimately bring about...Ch. 4 - Each steroidogenic organ has all the enzymes...Ch. 4 - Prob. 7RECh. 4 - Prob. 8RECh. 4 - Prob. 9RECh. 4 - Prob. 10RECh. 4 - Prob. 11RECh. 4 - Prob. 12RECh. 4 - Prob. 13RECh. 4 - A common membrane-bound intermediary between the...Ch. 4 - Prob. 15RECh. 4 - Prob. 16RECh. 4 - Prob. 17RECh. 4 - Prob. 18RECh. 4 - Define the following terms: polarization,...Ch. 4 - Prob. 2UCCh. 4 - Prob. 3UCCh. 4 - Prob. 4UCCh. 4 - Compare the four kinds of gated channels in terms...Ch. 4 - Prob. 6UCCh. 4 - Prob. 7UCCh. 4 - Prob. 8UCCh. 4 - Prob. 9UCCh. 4 - Define signal transduction.Ch. 4 - Compare the tyrosine kinase and JAK/STAT pathways.Ch. 4 - Prob. 12UCCh. 4 - Prob. 13UCCh. 4 - Describe how arachidonic acid is converted into...Ch. 4 - Prob. 15UCCh. 4 - Prob. 16UCCh. 4 - Explain how the cascading effect of hormonal...Ch. 4 - Prob. 18UCCh. 4 - Answer the following questions regarding...Ch. 4 - Prob. 2SQECh. 4 - Prob. 3SQECh. 4 - Prob. 1ACRCh. 4 - The rate at which the Na+K+ pump operates is not...Ch. 4 - Which of the following would occur if a neuron...Ch. 4 - Prob. 3TAHLCh. 4 - Assume presynaptic excitatory neuron A terminates...Ch. 4 - Prob. 5TAHL
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- A patient has an IV of 250 mL 0.9% NaCl (NS) with 25,000 units of heparin infusing at 17 mL/hour. How many units of heparin is the patient receiving per hour? Order: Nitroglycerin 22 mcg/min with concentration of Nitroglycerin 50 mg in 250 ml of D5W. What do you set the Alaris Pump at in mL/hour?arrow_forwardGiven that the extracellular concentration of Cl- is approximately 120 mM, what is the intracellular concentration if the Nernst potential for Cl- is 39 mV. (T=298 K, R=1.987 cal/K·mol, F=23,062 cal/mol·V)arrow_forwardWhat is the emf of a cell consisting of a Pb2+/Pb half-cell and a Pt/ H / H₂ half-cell if [Pb2+]=0.87 M, [H+]=0.011 M and Pы, = 1.0 atm? Round your answer to 2 significant digits. Note: Reference the Standard reduction potentials at 25 °C table for additional information. H₂ V X 5arrow_forward
- Using the Goldman-Hodgkin-Katz equation, determine what happens to the resting membrane potential if the ECF K+ concentration doubles to 10 mM.arrow_forwarddecreases (43 As indicated in the figure below, as blood flows through capillaries, the blood mmHg at inlet to 15 mmHg at outlet). Let's assume that this decrease in pressure is a linear function of length (x) and can be described by the following equation: pressure Pc(x) = (43 – 28x) mmHg We can assume that the other hydrostatic and osmotic pressures do not change along the length of the capillary. Specifically, oncotic pressure in the capillary is 28 mmHg. In the interstitial fluid surrounding our capillaries, hydrostatic pressure in the interstitial fluid surrounding the capillaries is about –2.0 mmHg, and osmotic pressure of about 1.0 mmHg. At what length value of x does flow switch from going out of the capillaries into the surrounding tissue to into the capillaries from the surrounding tissue? Don't worry about the units of x. We can think of x as a fraction representing how far down the capillary we are relative to total length. For example, x of 0.5 would be halfway down the…arrow_forward1. Given the following concentrations: K* Na* ICF 140 mM 14 mM 10 mM ECF 5 mM 145 mM 140 mM Calculate the equilibrium potentials of K, Na and Cl using the Nernst equation. EK = ENa = ECi =arrow_forward
- At 10 am you received a doctors order that you have to Infuse 1,000ml of PNSS in 10 hours to Mr Dela Cruz. What is the correct rate of this isotonic solution when the drop factor is 10 gtt = 1ml ? 15.73 qtts/min 31.249 qtts/min 49 qtts/min 18 qtts/minarrow_forwardMake a list of the different physiological equations: 1. Fick equation for oxygen diffusion = 2. Simple estimation for heart rate max = 3. Equation to convert absolute VO2 (Liters of 02/min) to relative VO2 (ml/kg/min) =arrow_forwardExample The standard half electrode potential for Fe²+ vs SHE is 0.77 V. What is the value of Ee at T = 298K when: [Fe³+] = 0.2 mol l-1 [Fe2+] = 0.05 mol 1-1arrow_forward
- In the preparation of an intravenous infusion, a vial containing 100 mg of drug is diluted to 2 mL with sodium chloride for injection. Then, the contents of the vial are added to 100 mL of an infusion solution. Calculate the final strength of the drug infusion in percentage strength (% w/v)arrow_forwardExplain the action and significance of the Ca 2+ pump and the Na+/Karrow_forwardA 26 year old female with hypokalaemia is prescribed an intravenous infusion of 0.15% potassium chloride (KCl) to correct this imbalance. She is to receive 50 mL 0.15% KCl over 6 hours. (0.15% KCl contains 20 mmol KCl per litre) How much potassium (in mmol/hour) is the patient receiving? units -mmol/hrarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning- Basic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:Cengage
Principles Of Radiographic Imaging: An Art And A ...Health & NutritionISBN:9781337711067Author:Richard R. Carlton, Arlene M. Adler, Vesna BalacPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Basic Clinical Lab Competencies for Respiratory C...
Nursing
ISBN:9781285244662
Author:White
Publisher:Cengage
Principles Of Radiographic Imaging: An Art And A ...
Health & Nutrition
ISBN:9781337711067
Author:Richard R. Carlton, Arlene M. Adler, Vesna Balac
Publisher:Cengage Learning
The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license