Study sets, textbooks, questions
Upgrade to remove ads
Lab Physio Ex exercise 3
Terms in this set (29)
The receptor potential is generated at the _______.
Sensory transduction is defined as _______.
the conversion of a stimulus to a change in membrane potential
The receptor potential _______.
amplitude can vary with the stimulus intensity, requires the appropriate stimulus and can be graded with a stimulus intensity
Which of the following describes a depolarization?
The membrane becomes less polarized
Which of the following occurs first in the generation of an action potential?
The membrane depolarizes
Which of the following occurs during depolarization?
sodium flows into the cell
Which of the following occurs during repolarization?
Voltage-gated potassium channels open and some voltage-gated sodium channels inactivate. Potassium flows out of the cell.
Which of the following allow the movement of potassium through the neuronal membrane?
leakage channels and voltage-gated potassium channels
In this activity, the stimulus voltage used was
the same for all of the axons and suprathreshold for all of the axons
The time interval for conduction would be shortest with,
the largest and most heavily myelinated axons
Increasing the amount of myelination
decreases the time between action potentials
Which fibers generate the smallest value for conduction velocity?
What effect did increasing the extracellular potassium have on the resting membrane potential?
The resting membrane potential became less negative.
What effect did decreasing the extracellular sodium have on the resting membrane potential?
Only a small change occurred, because the resting neuron is not very permeable to sodium.
The channels that provide for the movement of potassium in the resting neuron are _______.
Recommended textbook explanations
Anatomy and Physiology
Essential Cell Biology
Bruce Alberts, Dennis Bray, Karen Hopkin
Elevate Middle Grade Science 2019 Spanish Physical Student Edition
Brock Biology of Microorganisms
David A. Stahl, John M Martinko, Michael T. Madigan
Sets with similar terms
Lab 6 Neurophysiology Lab (PhysioEx)
Physiology Mastering Ch. 8
APK 2105c PhysioEx 3
Sets found in the same folder
PhysioEx 3- Neurophysiology
A&P I Chapter 11 Lab
Mastering A&P Lab 11 PhysioX 3
Other sets by this creator
A&P 2- chp.16
Sociology Exam 4
During which phase of meiosis is the chromosome number reduced? (A) anaphase I (B) metaphase I (C) telophase I (D) prophase II (E) telophase
Describe the components and structure of a DNA nucleotide.
Which organisms regulate their internal temperature so that it stays constant?
Light is needed for photosynthesis to take place. The algae depend on the energy from light to carry out photosynthesis. The main photosynthetic pigment of green algae is chlorophyll. Sunlight is made up of all the different wavelengths of visible light, but only blue and red are absorbed by chlorophyll. Other algae contain larger amounts of other pigments such as carotenoids. Carotenoids absorb energy from green light. Since algae live in water, this becomes important because water absorbs the different colors of light at different rates. Red light does not penetrate into water. Algae in water must be able to use light energy that is available underwater. Write an essay about why carotenoids are better than chlorophyll for algae living well below the surface.
Other Quizlet sets
CSD Exam 1 Chap 3
Chemistry Exam 1 (Multiple Choice)
Unit 3 Test Study Guide
Neurology Final Exam
How is the heart sympathetically innervated
What is the definition of EPSP (excitatory postsynaptic potential)?
TEA stands for and does what
Which is the first event that occurs when an action potential arrives at the synaptic terminal?