Neuroscience - Exam 1
... Explain what is meant by the time constant of a neuron and describe how temporal summation transforms neural signals from a frequency code to an amplitude code ...
... Explain what is meant by the time constant of a neuron and describe how temporal summation transforms neural signals from a frequency code to an amplitude code ...
NERVOUS TISSUE The nervous system consists of all nervous
... Neuroglia or Gliacells: CNS tissue contains several types of non-neuronal, supporting cells, neuroglia. It is estimated that for every neuron there are at least 10 neuroglia, however, as the neuroglia are much smaller than the neurons they only occupy about 50% of the total volume of nerve tissue. N ...
... Neuroglia or Gliacells: CNS tissue contains several types of non-neuronal, supporting cells, neuroglia. It is estimated that for every neuron there are at least 10 neuroglia, however, as the neuroglia are much smaller than the neurons they only occupy about 50% of the total volume of nerve tissue. N ...
slides
... • The AER communication protocol emulates massive connectivity between cells by time-multiplexing many connections on the same data bus. • For a one-to-one connection topology, the required number of wires is reduced from N to ∼ log2 N . • Each spike is represented by: ◦ Its location: explicitly enc ...
... • The AER communication protocol emulates massive connectivity between cells by time-multiplexing many connections on the same data bus. • For a one-to-one connection topology, the required number of wires is reduced from N to ∼ log2 N . • Each spike is represented by: ◦ Its location: explicitly enc ...
Characterising nicotinic acetylcholine receptors in the plant parasitic
... within a short time period while the environmental conditions are optimal. Therefore, locomotion is an essential component of its invasion strategy. It belongs to the phylum Nematoda, which also includes the free-living model genetic nematode C. elegans. We explored the idea that the neurobiological ...
... within a short time period while the environmental conditions are optimal. Therefore, locomotion is an essential component of its invasion strategy. It belongs to the phylum Nematoda, which also includes the free-living model genetic nematode C. elegans. We explored the idea that the neurobiological ...
SVHS ADV BIOLOGY NAME: 9th ed. Tortora PERIOD: 1 2 3 4 5 6
... The two main subdivisions of the nervous system are _________________________________ and __________________________________ ...
... The two main subdivisions of the nervous system are _________________________________ and __________________________________ ...
The Autonomic Nervous System
... these neurons release acetylcholine. They include: i. all symp. & parasym. Preganglionic neurons ii. symp. Postganglionic neuron innervates sweat gland. iii. All parasym. Postganglionic neurons --there are two types of cholinergic receptors, both of which bind Ach. They are : -Nicotinic—at motor ...
... these neurons release acetylcholine. They include: i. all symp. & parasym. Preganglionic neurons ii. symp. Postganglionic neuron innervates sweat gland. iii. All parasym. Postganglionic neurons --there are two types of cholinergic receptors, both of which bind Ach. They are : -Nicotinic—at motor ...
The human body contains more than 650 individual muscles which
... The human body contains more than 650 individual muscles which are attached to the skeleton, which provides the pulling power for us to move around. The main job of the muscular system is to provide movement for the body. The muscular system consist of three different types of muscle tissues : skele ...
... The human body contains more than 650 individual muscles which are attached to the skeleton, which provides the pulling power for us to move around. The main job of the muscular system is to provide movement for the body. The muscular system consist of three different types of muscle tissues : skele ...
Rising blood glucose level - Grosse Pointe Public School System
... into the cell) reversing the charge cell is DEPOLARIZED Charge distribution is reestablished when K+ is allowed to leave the cell Cell is Repolarized Na+/K+ pump reestablishes the ion concentrations (expends the most energy in your body) ...
... into the cell) reversing the charge cell is DEPOLARIZED Charge distribution is reestablished when K+ is allowed to leave the cell Cell is Repolarized Na+/K+ pump reestablishes the ion concentrations (expends the most energy in your body) ...
Questions for Exam #3
... 6. Channels of the TRP family are required for sensing stimuli in many organisms. In some cases, the receptor for the stimulus is ionotropic and in some case it is metabotropic. One of the TRP channels, call it TRPQ, opens in response to heat. TRPQ is a nonspecific cation channel. TRPQ is found in t ...
... 6. Channels of the TRP family are required for sensing stimuli in many organisms. In some cases, the receptor for the stimulus is ionotropic and in some case it is metabotropic. One of the TRP channels, call it TRPQ, opens in response to heat. TRPQ is a nonspecific cation channel. TRPQ is found in t ...
Release of chemical transmitters from cell bodies and dendrites of
... towards the active zone. Membrane proteins of a vesicle that will interact with the active zone material must arrive in a characteristic arrangement determined by a radial assembly of macromolecules. As a result, in response to electrical stimulation, a specific region of the vesicle membrane—the fu ...
... towards the active zone. Membrane proteins of a vesicle that will interact with the active zone material must arrive in a characteristic arrangement determined by a radial assembly of macromolecules. As a result, in response to electrical stimulation, a specific region of the vesicle membrane—the fu ...
Nervous system
... http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20lectures/nervous%20system/neuron6.gif ...
... http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20lectures/nervous%20system/neuron6.gif ...
Muscle
... Muscle Fiber Contraction • Muscle action is initiated by a nerve impulse. • The nerve releases ACh, which allows sodium to enter and depolarize the cell. If the cell is sufficiently depolarized, an action potential occurs, which releases stored Ca2 ions. • Ca2 ions bind with troponin, which lifts th ...
... Muscle Fiber Contraction • Muscle action is initiated by a nerve impulse. • The nerve releases ACh, which allows sodium to enter and depolarize the cell. If the cell is sufficiently depolarized, an action potential occurs, which releases stored Ca2 ions. • Ca2 ions bind with troponin, which lifts th ...
The Nervous System: Neural Tissue
... • Sodium ions are in large concentration along the outside of the cell membrane • Potassium ions are in large concentration along the inside of the cell membrane ...
... • Sodium ions are in large concentration along the outside of the cell membrane • Potassium ions are in large concentration along the inside of the cell membrane ...
1 - Wsfcs
... repolarizing; in a refractory period E) depolarizing; firing an action potential C) depolarizing; in a refractory period ___ 21. You are a reporter who is watching an action potential in progress. Which of the following statements should you broadcast to your listeners to best describe what you are ...
... repolarizing; in a refractory period E) depolarizing; firing an action potential C) depolarizing; in a refractory period ___ 21. You are a reporter who is watching an action potential in progress. Which of the following statements should you broadcast to your listeners to best describe what you are ...
make motor neuron posters now
... of a second) the membrane is changing in Na+ permeability and cannot be stimulated. B. A RELATIVE REFRACTORY PERIOD follows in which the membrane is is finishing repolarization. Only a high intensity stimulus will trigger an impulse. ...
... of a second) the membrane is changing in Na+ permeability and cannot be stimulated. B. A RELATIVE REFRACTORY PERIOD follows in which the membrane is is finishing repolarization. Only a high intensity stimulus will trigger an impulse. ...
File
... The location at which a neuron can transfer an impulse to another cell is called a synapse. The synaptic cleft separates the axon terminal from the dendrites of the adjacent cell. Terminals contain vesicles filled with neurotransmitters. Neurotransmitters are chemicals used by a neuron to transmit ...
... The location at which a neuron can transfer an impulse to another cell is called a synapse. The synaptic cleft separates the axon terminal from the dendrites of the adjacent cell. Terminals contain vesicles filled with neurotransmitters. Neurotransmitters are chemicals used by a neuron to transmit ...
Section 35-2: The Nervous System The nervous system controls and
... The location at which a neuron can transfer an impulse to another cell is called a synapse. The synaptic cleft separates the axon terminal from the dendrites of the adjacent cell. Terminals contain vesicles filled with neurotransmitters. Neurotransmitters are chemicals used by a neuron to transmit ...
... The location at which a neuron can transfer an impulse to another cell is called a synapse. The synaptic cleft separates the axon terminal from the dendrites of the adjacent cell. Terminals contain vesicles filled with neurotransmitters. Neurotransmitters are chemicals used by a neuron to transmit ...
Chapter 7
... to move through Na+ ion channels in the cell membrane. • H+ ions in sour foods and sugar molecules in sweet foods close the K+ ion channels in receptor membranes, preventing K+ ions from leaving the cell. • In bitter foods, alkaloid compounds trigger the movement of Ca2+ ions into the cytoplasm from ...
... to move through Na+ ion channels in the cell membrane. • H+ ions in sour foods and sugar molecules in sweet foods close the K+ ion channels in receptor membranes, preventing K+ ions from leaving the cell. • In bitter foods, alkaloid compounds trigger the movement of Ca2+ ions into the cytoplasm from ...
Drugs and the Synapse
... with relaxation. • In greater amounts it impairs judgment and damages the liver and other organs. • Alcoholism/alcohol dependence is the continued use of alcohol despite medical or social harm even after one has decided to quit or decrease drinking. ...
... with relaxation. • In greater amounts it impairs judgment and damages the liver and other organs. • Alcoholism/alcohol dependence is the continued use of alcohol despite medical or social harm even after one has decided to quit or decrease drinking. ...
End-plate potential
End plate potentials (EPPs) are the depolarizations of skeletal muscle fibers caused by neurotransmitters binding to the postsynaptic membrane in the neuromuscular junction. They are called ""end plates"" because the postsynaptic terminals of muscle fibers have a large, saucer-like appearance. When an action potential reaches the axon terminal of a motor neuron, vesicles carrying neurotransmitters (mostly acetylcholine) are exocytosed and the contents are released into the neuromuscular junction. These neurotransmitters bind to receptors on the postsynaptic membrane and lead to its depolarization. In the absence of an action potential, acetylcholine vesicles spontaneously leak into the neuromuscular junction and cause very small depolarizations in the postsynaptic membrane. This small response (~0.5mV) is called a miniature end plate potential (MEPP) and is generated by one acetylcholine-containing vesicle. It represents the smallest possible depolarization which can be induced in a muscle.