Overview of the Lymphatic System
... Interstitial fluid • Complex, organized fluid that fills the spaces between the cells and is part of the extracellular matrix • Resembles blood plasma in composition with a lower percentage of protein • Along with blood plasma, constitutes the extracellular fluid ...
... Interstitial fluid • Complex, organized fluid that fills the spaces between the cells and is part of the extracellular matrix • Resembles blood plasma in composition with a lower percentage of protein • Along with blood plasma, constitutes the extracellular fluid ...
Chapter 2: The Brain and Behavior
... FIGURE 2.4 The interior of an axon. The right end of the top axon is at rest. Thus, it has a negative charge inside. An action potential begins when ion channels open and sodium ions (Na+) rush into the axon. In this drawing, the action potential would travel from left to right along the axon. In th ...
... FIGURE 2.4 The interior of an axon. The right end of the top axon is at rest. Thus, it has a negative charge inside. An action potential begins when ion channels open and sodium ions (Na+) rush into the axon. In this drawing, the action potential would travel from left to right along the axon. In th ...
Results: Mitochondrial transport in dendrites and axons Maximum
... energetic requirements within a particular experimental model. For example, our observed increase in anterograde transport with developmental maturity is opposite to that observed in sympathetic neurons [57,58], which showed net anterograde mitochondrial transport in growing axons, but net retrograd ...
... energetic requirements within a particular experimental model. For example, our observed increase in anterograde transport with developmental maturity is opposite to that observed in sympathetic neurons [57,58], which showed net anterograde mitochondrial transport in growing axons, but net retrograd ...
Synaptic transmission
... • In addition, some postsynaptic neurons respond with large numbers of output impulses, and others respond with only a few. Thus, the synapses perform a selective action, often blocking weak signals while allowing strong signals to pass, but at other times selecting and amplifying certain weak signa ...
... • In addition, some postsynaptic neurons respond with large numbers of output impulses, and others respond with only a few. Thus, the synapses perform a selective action, often blocking weak signals while allowing strong signals to pass, but at other times selecting and amplifying certain weak signa ...
lec#37 by Dalin Mohammad corrected by Bayan
... Types of receptors: Mechanical to electrical impulses which is the action potential Thermoreceptors that will change from heat to electrical impulses Shape-sensitive receptors Nociceptors that are pain-senstive Electromagnetic that are light-sensitive for vision Chemoreceptors taste and smell- sensi ...
... Types of receptors: Mechanical to electrical impulses which is the action potential Thermoreceptors that will change from heat to electrical impulses Shape-sensitive receptors Nociceptors that are pain-senstive Electromagnetic that are light-sensitive for vision Chemoreceptors taste and smell- sensi ...
Categories in the Brain - Rice University -
... • Hypothesis IV: (Coming Soon!) “[T]he effective unit of operation…is not the single neuron and its axon, but bundles or groups of cells and their axons with similar functional properties and anatomical connections.” Vernon Mountcastle, Perceptual Neuroscience (1998), p. 192 ...
... • Hypothesis IV: (Coming Soon!) “[T]he effective unit of operation…is not the single neuron and its axon, but bundles or groups of cells and their axons with similar functional properties and anatomical connections.” Vernon Mountcastle, Perceptual Neuroscience (1998), p. 192 ...
neuromuscular transmission neuromuscular junction
... current sink created by this local potential depolarizes the adjacent muscle membrane to its firing level. Action potentials are generated on either side of the end plate and are conducted away from the end plate in both directions along the muscle fiber. The muscle action potential, in turn, initia ...
... current sink created by this local potential depolarizes the adjacent muscle membrane to its firing level. Action potentials are generated on either side of the end plate and are conducted away from the end plate in both directions along the muscle fiber. The muscle action potential, in turn, initia ...
Skeletal System
... Neurofilaments are cytoskeleton elements that also aid in the transport of substances to and from the cell body as the axonal cytoplasm is continually recycled and renewed This movement of substances along axons is called axonal transport ...
... Neurofilaments are cytoskeleton elements that also aid in the transport of substances to and from the cell body as the axonal cytoplasm is continually recycled and renewed This movement of substances along axons is called axonal transport ...
Cardiovascular drugs Digitalis Cardiac glycosides include digoxin
... in the action potential duration is probably the result of increase potassium conductance that is caused by increase intracellular ca ions. All these effects can be observed at therapeutic concentration in the absence of over toxicity. Shortening of the action potential contributes to the shortenin ...
... in the action potential duration is probably the result of increase potassium conductance that is caused by increase intracellular ca ions. All these effects can be observed at therapeutic concentration in the absence of over toxicity. Shortening of the action potential contributes to the shortenin ...
Presentation
... What molecular properties of dorsal raphe serotonin neurons make them unusually successful at axonal regeneration compared to most other neurons in the brain? Could we use such molecular insights to design therapies to promote axon regeneration in other types of neurons in the brain or spinal cord a ...
... What molecular properties of dorsal raphe serotonin neurons make them unusually successful at axonal regeneration compared to most other neurons in the brain? Could we use such molecular insights to design therapies to promote axon regeneration in other types of neurons in the brain or spinal cord a ...
Ch 48 49 Notes - Dublin City Schools
... • The speed of an action potential increases with the axon’s diameter • In vertebrates, axons are insulated by a myelin sheath, which causes an action potential’s speed to increase • Myelin sheaths are made by glia— oligodendrocytes in the CNS and Schwann cells in the PNS ...
... • The speed of an action potential increases with the axon’s diameter • In vertebrates, axons are insulated by a myelin sheath, which causes an action potential’s speed to increase • Myelin sheaths are made by glia— oligodendrocytes in the CNS and Schwann cells in the PNS ...
PowerPoint on spinal cord and grey/white matter
... 1. Grey matter is made up of nerve cell bodies while white matter is made up of fibers. 2. Unlike the white matter, the neurons of grey matter do NOT have extended axons. 3. Grey matter occupies 40 percent of the brain, while white matter fills 60 percent of the brain. 4. Grey matter has this color ...
... 1. Grey matter is made up of nerve cell bodies while white matter is made up of fibers. 2. Unlike the white matter, the neurons of grey matter do NOT have extended axons. 3. Grey matter occupies 40 percent of the brain, while white matter fills 60 percent of the brain. 4. Grey matter has this color ...
Confocal imaging of glial cells in the intact rat optic nerve
... Forty LRD-filled cells were imaged on a confocal la- Processes were predominantly smooth, fine calibre and ser scanning microscope (Bio-Rad Microscience Divi- branched close to the cell body (Fig.2B). Primary branches sion, Ltd.). The fluorescent dye is excited by a laser passed radially to the pia ...
... Forty LRD-filled cells were imaged on a confocal la- Processes were predominantly smooth, fine calibre and ser scanning microscope (Bio-Rad Microscience Divi- branched close to the cell body (Fig.2B). Primary branches sion, Ltd.). The fluorescent dye is excited by a laser passed radially to the pia ...
Expression of KCNA10, a Voltage-Gated K Channel, in Glomerular
... The specificity of the antibody was tested further in competition studies with the peptide used to generate anti-KCNA10. As shown in Figure 1b, the signal obtained with anti-KCNa10 was nearly completely abolished by the addition of the peptide. KCNA10 is the only Kv channel gene that is more abundan ...
... The specificity of the antibody was tested further in competition studies with the peptide used to generate anti-KCNA10. As shown in Figure 1b, the signal obtained with anti-KCNa10 was nearly completely abolished by the addition of the peptide. KCNA10 is the only Kv channel gene that is more abundan ...
DOC - ADAM Interactive Anatomy
... the ___________________(a gap between the neurons) to the receiving neuron. Advantages of the chemical synapse: 1. The signal can be either ____________ or ____________. 2. The signal can be ______________ as it passes from one neuron to the next. ...
... the ___________________(a gap between the neurons) to the receiving neuron. Advantages of the chemical synapse: 1. The signal can be either ____________ or ____________. 2. The signal can be ______________ as it passes from one neuron to the next. ...
Electrical Signaling
... such as channels, – other membrane channels allow for ions to flow down concentration gradients, creating a change that can affect other membrane potentials. – Excitable tissues have Na+ & K+ channels that operate at a threshold level ...
... such as channels, – other membrane channels allow for ions to flow down concentration gradients, creating a change that can affect other membrane potentials. – Excitable tissues have Na+ & K+ channels that operate at a threshold level ...
Chapter 7 Membrane Structure and Function
... - In 1972, Singer and Nicolson proposed that membrane proteins are dispersed and individually inserted into the phospholipid bilayer. - Freeze-fracture studies of the plasma membrane supported the fluid mosaic model of membrane structure. B. The Fluidity of Membranes - Phospholipids in the plasma me ...
... - In 1972, Singer and Nicolson proposed that membrane proteins are dispersed and individually inserted into the phospholipid bilayer. - Freeze-fracture studies of the plasma membrane supported the fluid mosaic model of membrane structure. B. The Fluidity of Membranes - Phospholipids in the plasma me ...
Biomarkers_04-Mechanisms-Membranes
... Nonspecific (basal, narcotic) toxicity - All organic compounds tend to accumulate in membranes, being “narcotic” at relatively "high“ concentrations - Compounds then affect membranes nonspecific disruption of fluidity and/or disruption of membrane proteins - Related to lipophilicity (Kow): tend ...
... Nonspecific (basal, narcotic) toxicity - All organic compounds tend to accumulate in membranes, being “narcotic” at relatively "high“ concentrations - Compounds then affect membranes nonspecific disruption of fluidity and/or disruption of membrane proteins - Related to lipophilicity (Kow): tend ...
Achieving CNS axon regeneration by manipulating convergent
... ~40 % vs control) (Rong et al. 2004). However, if DNRAGE was expressed in both monocytes and neurons, impairment was significantly greater (decrease ~70 % vs control) (Rong et al. 2004). These elegant studies illustrate that PRR activation can affect repair processes via convergent signaling in immu ...
... ~40 % vs control) (Rong et al. 2004). However, if DNRAGE was expressed in both monocytes and neurons, impairment was significantly greater (decrease ~70 % vs control) (Rong et al. 2004). These elegant studies illustrate that PRR activation can affect repair processes via convergent signaling in immu ...
1: Nervous System II: Anatomy Review
... nervous system (PNS) generally slows down everything but digestion. Signals from the SNS cause the heart rate to _________, while signals from the PNS cause the heart rate to ___________. Signals from the SNS cause smooth muscles of the intestine to _________ contractions, while signals from the PNS ...
... nervous system (PNS) generally slows down everything but digestion. Signals from the SNS cause the heart rate to _________, while signals from the PNS cause the heart rate to ___________. Signals from the SNS cause smooth muscles of the intestine to _________ contractions, while signals from the PNS ...
Synapses lecture 2012 De Camilli final
... Imaging synaptic transmission (postsynaptic action of glutamate) Simultaneous(22photon(Calcium(Imaging(and(Focal(Glutamate(Uncagingin(Living(Brain( ...
... Imaging synaptic transmission (postsynaptic action of glutamate) Simultaneous(22photon(Calcium(Imaging(and(Focal(Glutamate(Uncagingin(Living(Brain( ...
The effects of normal aging on myelin and nerve fibers: A review
... cognition is because damage to myelin sheaths results in a decrease in conduction velocity along nerve fibers. For example, Xi et al. (1999) found that compared with young cats the conduction velocity along nerve fibers in the pyramidal tracts of old cats is decreased by 43%, and Morales et al. (198 ...
... cognition is because damage to myelin sheaths results in a decrease in conduction velocity along nerve fibers. For example, Xi et al. (1999) found that compared with young cats the conduction velocity along nerve fibers in the pyramidal tracts of old cats is decreased by 43%, and Morales et al. (198 ...
Document
... Nociceptors are receptors that respond only to actual or imminent tissue damage Several types: •High threshold mechanoreceptors: mostly Aδ •Thermal nociceptors: mostly Aδ •Polymodal nociceptors: mostly C: nociceptors that respond to more than one modality (mechanical, heat, chemical etc) ...
... Nociceptors are receptors that respond only to actual or imminent tissue damage Several types: •High threshold mechanoreceptors: mostly Aδ •Thermal nociceptors: mostly Aδ •Polymodal nociceptors: mostly C: nociceptors that respond to more than one modality (mechanical, heat, chemical etc) ...
Full size lecture slides (PowerPoint file, 7.3 MB)
... Nociceptors are receptors that respond only to actual or imminent tissue damage Several types: •High threshold mechanoreceptors: mostly Aδ •Thermal nociceptors: mostly Aδ •Polymodal nociceptors: mostly C: nociceptors that respond to more than one modality (mechanical, heat, chemical etc) ...
... Nociceptors are receptors that respond only to actual or imminent tissue damage Several types: •High threshold mechanoreceptors: mostly Aδ •Thermal nociceptors: mostly Aδ •Polymodal nociceptors: mostly C: nociceptors that respond to more than one modality (mechanical, heat, chemical etc) ...
Chapter 05: Synaptic Transmission
... • Metabotropic: G-protein-coupled receptors Trigger slower, longer-lasting and more diverse postsynaptic actions Same neurotransmitter could exert different actions depending on what receptors it bind to (1) NT 1st messenger binds. (2) G protein subunit breaks away. (3) Ion channel opened/clos ...
... • Metabotropic: G-protein-coupled receptors Trigger slower, longer-lasting and more diverse postsynaptic actions Same neurotransmitter could exert different actions depending on what receptors it bind to (1) NT 1st messenger binds. (2) G protein subunit breaks away. (3) Ion channel opened/clos ...
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.