Student Guide Chapter 11
... 3. List the types of neuroglia and cite their functions. 4. Define neuron, describe its important structural components, and relate each to a functional role. 5. Differentiate between (1) a nerve and a tract, and (2) a nucleus and a ganglion. 6. Explain the importance of the myelin sheath and descri ...
... 3. List the types of neuroglia and cite their functions. 4. Define neuron, describe its important structural components, and relate each to a functional role. 5. Differentiate between (1) a nerve and a tract, and (2) a nucleus and a ganglion. 6. Explain the importance of the myelin sheath and descri ...
Nervous System Fundamentals
... c. Axon ______________ - specialized processes at end of axon collaterals and axons; may end with swollen bumps called ____________________, which contain synaptic vesicles containing neurotransmitters, which influence other neuron, muscle, or gland activities. D. Axons transport materials both ways ...
... c. Axon ______________ - specialized processes at end of axon collaterals and axons; may end with swollen bumps called ____________________, which contain synaptic vesicles containing neurotransmitters, which influence other neuron, muscle, or gland activities. D. Axons transport materials both ways ...
Nervous System PowerPoint
... their concentration gradient by diffusion. Potassium diffuses out faster than sodium diffuses in leaving a negative charge inside the cell. The cell is polarized. At rest there are more ion gates open for potassium. ...
... their concentration gradient by diffusion. Potassium diffuses out faster than sodium diffuses in leaving a negative charge inside the cell. The cell is polarized. At rest there are more ion gates open for potassium. ...
What is a membrane potential?
... How do environmental changes affect cellular Vm? Why are patch clamps useful for studying Vm? What are the properties of voltage-gated channels? What is “self-propagation” and why is this property important with regards to a cellular membrane potential? What is saltatory conduction and why is it so ...
... How do environmental changes affect cellular Vm? Why are patch clamps useful for studying Vm? What are the properties of voltage-gated channels? What is “self-propagation” and why is this property important with regards to a cellular membrane potential? What is saltatory conduction and why is it so ...
Neuron Structure and Function
... - the decrease in ri speeds up the current transfer to the next region of the nerve and threshold is reached sooner ...
... - the decrease in ri speeds up the current transfer to the next region of the nerve and threshold is reached sooner ...
Lecture Slides - University of Manitoba
... An action potential elicited at any point on a membrane, usually excites adjacent portions of the membrane, resulting propagation of the action potential in any direction. The action potential moves and depolarizes through the entire membrane or it fails to travel at all. This is called “all-or-none ...
... An action potential elicited at any point on a membrane, usually excites adjacent portions of the membrane, resulting propagation of the action potential in any direction. The action potential moves and depolarizes through the entire membrane or it fails to travel at all. This is called “all-or-none ...
File - Paxson Science
... 13. Diagram and label a mammalian neuron cell. Include brief descriptions of the following features: axon, dendrite, Schwann cells, myelin sheath, nodes of Ranvier. ...
... 13. Diagram and label a mammalian neuron cell. Include brief descriptions of the following features: axon, dendrite, Schwann cells, myelin sheath, nodes of Ranvier. ...
Nervous System 4/28/09
... 2. Responding to info – reaction to stimulus (change/signal) 3. Maintaining homeostasis ...
... 2. Responding to info – reaction to stimulus (change/signal) 3. Maintaining homeostasis ...
to find the lecture notes for lecture 6 nervous tissue click here
... – unipolar neurons = one process only, sensory only (touch, stretch) • develops from a bipolar neuron in the embryo - axon and dendrite fuse and then branch into 2 branches near the soma - both have the structure of axons (propagate APs) - the axon that projects toward the periphery = dendrites ...
... – unipolar neurons = one process only, sensory only (touch, stretch) • develops from a bipolar neuron in the embryo - axon and dendrite fuse and then branch into 2 branches near the soma - both have the structure of axons (propagate APs) - the axon that projects toward the periphery = dendrites ...
Structure of the Nervous System
... Organization of the Nervous System •Nervous system can be classified in terms of information flow: Afferent neurons (sensory neurons) send signals into the central nervous system (CNS) for processing. The processed signal is sent out along efferent neurons to activate the required cellular response ...
... Organization of the Nervous System •Nervous system can be classified in terms of information flow: Afferent neurons (sensory neurons) send signals into the central nervous system (CNS) for processing. The processed signal is sent out along efferent neurons to activate the required cellular response ...
General histology of nervous system
... Functional Organization of the Nervous System • Sensory (afferent) component; receives and transmits impulses to the CNS for processing ...
... Functional Organization of the Nervous System • Sensory (afferent) component; receives and transmits impulses to the CNS for processing ...
1) Which is NOT a characteristic of living organisms
... 10) True or False? In figure 1, if the permeability of Na+ is changed, its equilibrium potential will also change. A) True. B) False. 11) The cerebellum… A) acts as a relay station, filtering all sensory information before it reaches higher brain areas. B) is mainly responsible for processing smell ...
... 10) True or False? In figure 1, if the permeability of Na+ is changed, its equilibrium potential will also change. A) True. B) False. 11) The cerebellum… A) acts as a relay station, filtering all sensory information before it reaches higher brain areas. B) is mainly responsible for processing smell ...
01 - Fort Bend ISD
... of ions inside and outside the cell. This potential energy is called a(n) _____________________. 8. When a neuron is activated, a protein called the ____________________ uses energy to move sodium ions out of the cell and bring potassium ions into the cell. 9. A(n) _____________________ is an electr ...
... of ions inside and outside the cell. This potential energy is called a(n) _____________________. 8. When a neuron is activated, a protein called the ____________________ uses energy to move sodium ions out of the cell and bring potassium ions into the cell. 9. A(n) _____________________ is an electr ...
Biology 251 17 September 2015 Exam One FORM G KEY PRINT
... will have 4 points DEDUCTED if you fail to do this!!!!!! WRITE YOUR TEST FORM LETTER above your name on the answer sheet. WRITE YOUR LAB SECTION # AND TA'S NAME on the upper margin of your answer sheet. Your exam should have 27 questions. Please check to make sure it is complete. For each of the fol ...
... will have 4 points DEDUCTED if you fail to do this!!!!!! WRITE YOUR TEST FORM LETTER above your name on the answer sheet. WRITE YOUR LAB SECTION # AND TA'S NAME on the upper margin of your answer sheet. Your exam should have 27 questions. Please check to make sure it is complete. For each of the fol ...
Brain Cell or Neuron
... o When the doctor taps your knee with the rubber hammer, she/he is testing your reflex (or knee-jerk). The reaction to the hammer is involuntary, with the CNS being told but not consciously controlling the leg kick. o Examples of reflex arcs include balance, the blinking reflex, and the ...
... o When the doctor taps your knee with the rubber hammer, she/he is testing your reflex (or knee-jerk). The reaction to the hammer is involuntary, with the CNS being told but not consciously controlling the leg kick. o Examples of reflex arcs include balance, the blinking reflex, and the ...
The Nervous System - Zen Shiatsu Chicago
... • Synapse = from Greek syn, “to clasp or join”; a junction that mediates information transfer from one neuron to the next or from a neuron to an effector cell • Two varieties of synapses: electrical and chemical; electrical is less common o Chemical Synapses Specialized for release and reception o ...
... • Synapse = from Greek syn, “to clasp or join”; a junction that mediates information transfer from one neuron to the next or from a neuron to an effector cell • Two varieties of synapses: electrical and chemical; electrical is less common o Chemical Synapses Specialized for release and reception o ...
Nervous System Notes
... Graphing Action Potential Hyperpolarization when the cell becomes more negative than -70mv; depends on which ions are allowed to enter the cell, + or – ions (i.e. Cl- ions) Threshold – the minimum amt. of stimulus required to cause an action potential ...
... Graphing Action Potential Hyperpolarization when the cell becomes more negative than -70mv; depends on which ions are allowed to enter the cell, + or – ions (i.e. Cl- ions) Threshold – the minimum amt. of stimulus required to cause an action potential ...
chapter nervous system i: basig strugture and function
... Compare newe impulse conduction in myelinated and unmyelinated neurons. Synaptic Transmission (p. 371) ...
... Compare newe impulse conduction in myelinated and unmyelinated neurons. Synaptic Transmission (p. 371) ...
Document
... • Continuous conduction (unmyelinated fibers) – An action potential spreads (propagates) over the surface of the axolemma – as Na+ flows into the cell during depolarization, the voltage of adjacent areas is effected and their voltage-gated Na+ channels open – step-by-step depolarization of each port ...
... • Continuous conduction (unmyelinated fibers) – An action potential spreads (propagates) over the surface of the axolemma – as Na+ flows into the cell during depolarization, the voltage of adjacent areas is effected and their voltage-gated Na+ channels open – step-by-step depolarization of each port ...
DOC - ADAM Interactive Anatomy
... b. What do these chemicals diffuse across? _________________________ c. Where do these chemicals bind to receptors? ______________________ ...
... b. What do these chemicals diffuse across? _________________________ c. Where do these chemicals bind to receptors? ______________________ ...
Node of Ranvier
The nodes of Ranvier also known as myelin sheath gaps, are the gaps (approximately 1 micrometer in length) formed between the myelin sheaths generated by different cells. A myelin sheath is a many-layered coating, largely composed of a fatty substance called myelin, that wraps around the axon of a neuron and very efficiently insulates it. At nodes of Ranvier, the axonal membrane is uninsulated and, therefore, capable of generating electrical activity.