SEELEY'S ANATOMY+PHYSIOLOGY
12th Edition
ISBN: 9781260172195
Author: VanPutte
Publisher: RENT MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 11, Problem 13RAC
Decreasing the extracellular concentration of K+ affect the resting membrane potential by causing
a. hyperpolarisation.
b. depolarisation.
c. no change.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The resting membrane potential results fromA. uneven distribution of ions across the cell membrane only.B. differences in membrane permeability to Na+ and K+ onlyC. activity of the sodium/potassium pump only.D. uneven distribution of ions across the cell membrane, differences in membrane permeability to Na+ and K+, and sodium/potassium pump activity
Mark the following statements as true or false. If a statement is false, correct it to make a true statement. a. The resting membrane potential refers to the voltage difference across the membranes of excitable cells at rest. b. The concentration of Na+ is highest in the cytosol, and the concentration of K+ is highest in the extracellular fluid. c. The Na+>K+ pumps and gated channels maintain the Na+ and K+ gradients necessary for action potentials to occur. d. A depolarization is a change in membrane potential that makes the potential less negative. e. A local potential is a change in membrane potential that conducts the long-distance signals of the nervous system
The resting membrane potential of a neuron or muscle cell is a. equal to the potassium equilibrium potential. b. equal to the sodium equilibrium potential. c. somewhat less negative than the potassium equilibrium potential. d. somewhat more positive than the sodium equilibrium potential. e. not changed by stimulation.
Chapter 11 Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
Ch. 11.1 - List and give examples of the general functions of...Ch. 11.2 - Name the components of the CNS and the PNS.Ch. 11.2 - What are the following: sensory receptor, nerve,...Ch. 11.2 - Based on the direction they transmit action...Ch. 11.2 - Based on the structures they supply, what are the...Ch. 11.2 - Where are the cell bodies of sensory, somatic...Ch. 11.2 - What are the subcategories of the ANS?Ch. 11.2 - Compare the general functions of the CNS and the...Ch. 11.3 - Describe and give the function of a neuron cell...Ch. 11.3 - What is the function of the trigger zone?
Ch. 11.3 - Prob. 11AYPCh. 11.3 - Describe the three types of neurons based on...Ch. 11.3 - Prob. 13AYPCh. 11.3 - What characteristic makes glial cells different...Ch. 11.3 - Which glial cells are found in the CNS? In the...Ch. 11.3 - Which type of glial cell Supports neurons and...Ch. 11.3 - Name the different kinds of glial cells that ore...Ch. 11.3 - Prob. 18AYPCh. 11.3 - How do myelinated axons differ from unmyelinated...Ch. 11.4 - What makes up gray matter and white matter?Ch. 11.4 - Prob. 21AYPCh. 11.5 - Describe the concentration differences for Na+ and...Ch. 11.5 - Prob. 23AYPCh. 11.5 - Describe leak ion channels and go ted ion...Ch. 11.5 - Define ligand, receptor, and receptor site.Ch. 11.5 - What kinds of stimuli cause gated ion channels to...Ch. 11.5 - Prob. 27AYPCh. 11.5 - Prob. 28AYPCh. 11.5 - Prob. 29AYPCh. 11.5 - What happens to cause depolarization and...Ch. 11.5 - Prob. 31AYPCh. 11.5 - Prob. 32AYPCh. 11.5 - How does on action potential differ from a local...Ch. 11.5 - Prob. 34AYPCh. 11.5 - Prob. 35AYPCh. 11.5 - Prob. 36AYPCh. 11.5 - Prob. 37AYPCh. 11.5 - Prob. 38AYPCh. 11.5 - What is action potential frequency? What two...Ch. 11.5 - Describe sub-threshold threshold, maximal,...Ch. 11.5 - Prob. 41AYPCh. 11.5 - What prevents on action potential from reversing...Ch. 11.5 - Prob. 43AYPCh. 11.5 - Prob. 44AYPCh. 11.5 - Prob. 45AYPCh. 11.6 - What are the components of a synapse? What is the...Ch. 11.6 - What is on electrical synapse? Describe its...Ch. 11.6 - Describe the release of neurotransmitter In a...Ch. 11.6 - Prob. 49AYPCh. 11.6 - Prob. 50AYPCh. 11.6 - Prob. 51AYPCh. 11.6 - Explain the production of EPSPs and IPSPs. Why are...Ch. 11.6 - Prob. 53AYPCh. 11.6 - Prob. 54AYPCh. 11.6 - Prob. 55AYPCh. 11.6 - Prob. 56AYPCh. 11.7 - Diagram a convergent pathway, a divergent pathway,...Ch. 11 - The part of the nervous system that controls...Ch. 11 - Motor neurons and interneurons are _______...Ch. 11 - Cells found in the choroid plexuses that secrete...Ch. 11 - Glial cells that are phagocytic within the central...Ch. 11 - Action potentials are conducted more rapidly In...Ch. 11 - Clusters of neuron cell bodies within the...Ch. 11 - Prob. 7RACCh. 11 - Prob. 8RACCh. 11 - Compared with the inside of the resting plasma...Ch. 11 - Prob. 10RACCh. 11 - Prob. 11RACCh. 11 - If the permeability of the plasma membrane to K+...Ch. 11 - Decreasing the extracellular concentration of K+...Ch. 11 - Prob. 14RACCh. 11 - Which of these statements about ion movement...Ch. 11 - Prob. 16RACCh. 11 - Graded potentials a. spread over the plasma...Ch. 11 - During the depolarization phase of an action...Ch. 11 - Prob. 19RACCh. 11 - Prob. 20RACCh. 11 - Prob. 21RACCh. 11 - Neurotransmitter substances are stored in vesicles...Ch. 11 - In a chemical synapse, Action potentials in the...Ch. 11 - An inhibitory presynaptic neuron can affect a...Ch. 11 - Summation Is caused by combining two or more...Ch. 11 - In convergent pathways. a. the response of the...Ch. 11 - A child eats a whole bottle of salt (NaCl)...Ch. 11 - Prob. 2CTCh. 11 - Prob. 3CTCh. 11 - Prob. 4CTCh. 11 - The speed of action potential propagation and...Ch. 11 - Prob. 6CTCh. 11 - Strychnine blocks receptor sites for inhibitory...Ch. 11 - Prob. 8CTCh. 11 - Prob. 9CTCh. 11 - Prob. 10CT
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
- The accelerating flow of _______ ions through gated channels across the membrane triggers an action potential. a. potassium b. sodium c. hydrogen d. a and barrow_forwardMatch the description with the statement that best describes the following statements hyperpolarization repolarization depolarization A. usually corresponds to opening of voltage-gated potassium channels B. any change in the membrane potential that moves the membrane potential to a value more positive than the resting potential (eg from -70mV to +35mV) C. any change in the membrane potential that moves the membrane potential to a value more negative than the resting potential (eg from -70mV to -85mV)arrow_forwardfactors responsible for a negative resting membrane potential include: check all that apply: a. Na K pump b. different carrier proteins c. uneven distribution of ions d. difference in permeability of ions e. high potassium concentration in ECFarrow_forward
- Describe the contribution of each of the following to the establishment and maintenance of membrane potential: Part A Na+K+ Pump Passive movement of K+ across the membrane Passive movement of Na+ across the membrane Part B Resting membrane potential is approximately -70mV. Explain what resting membrane potential is and what -70mV refers to.arrow_forwardThe figure below may help in answering some of the questions. 1. What ions are flowing (and in which direction) both during the rising phase and the falling phase of the action potential? 2. What are the values of both the 'y' (vertical) axis and the 'x' (horizontal) axis. 3. If extracellular levels of K+ rose (a condition called hyperkalemia), how would that affect the resting membrane potential? 3arrow_forwardVoltage-gated Na+ channels are.... (select all that apply). Group of answer choices: A. Opened by the presence of negative charge B. Opened by the presence of positive charge C. Always open D. Gatedarrow_forward
- At the peak of an action potential, would the relative permeability of Na be higher than K? Which ion would be the least permeable to the membrane during falling phase?arrow_forwardAn 82-year-old woman is brought to the emergency room complain- ing of nausea, vomiting, muscle cramps, and generalized weakness. Labo- ratory analysis reveals significant hyperkalemia. Elevations of extracellular potassium ion concentration will have which of the following effects on nerve membranes? a. The membrane potential will become more negative b. The sodium conductance will increase c. The potassium conductance will increase d. The membrane will become more excitable e. The Na*-K* pump will become inactivatedarrow_forwardThe action potential is split into 4 parts (A-D). For each part, 1. Describe what stimulated the channel responsible for this part, 2. what is the likely ion that is moving and 3. explain which direction the ion had to move to create the measured membrane potential.arrow_forward
- Which of the following primarily reflects the opening of voltage-gated Na+ channels? A. The resting membrane potential B. The depolarization phase of the action potential C. The threshold potential D. The repolarization phase of the action potential E. All of the abovearrow_forwardHyperkalemia was discussed at length in this module. If a cell is experiencing hyperkalemia, what could you do to get the action potential duration looking more like normal? a. Add more extracellular sodium b.Add more intracellular sodium c.Add more intracellular potassium d.Add more extracellular potassiumarrow_forwardDuring the depolarization phase of an action potential, the permeability of the plasma membrane toa. Ca2+increases. c. K+ increases. e. Na+ decreases.b. Na+ increases. d. Ca2+decreases.arrow_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
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license