The Nervous System
... •These are the suport cells in the peripheral nervous system. •Schwann cells provide the myelin sheath for peripheral axons. •Satellite cells serve a slightly similar function to astrocytes, supporting the cell bodies of peripheral neurons. ...
... •These are the suport cells in the peripheral nervous system. •Schwann cells provide the myelin sheath for peripheral axons. •Satellite cells serve a slightly similar function to astrocytes, supporting the cell bodies of peripheral neurons. ...
Stimulus space topology and geometry from neural activity
... generated in our brains. How do we do this? Many studies have investigated how the electrical activity of neurons (action potentials) is related to outside stimuli, and maps of these relationships – often called receptive fields – are routinely computed from data collected in neuroscience experiment ...
... generated in our brains. How do we do this? Many studies have investigated how the electrical activity of neurons (action potentials) is related to outside stimuli, and maps of these relationships – often called receptive fields – are routinely computed from data collected in neuroscience experiment ...
File
... depending on the range that it covers (longer axons are myelinated). - it is possible for more than one interneuron to be involved in ‘connecting’ a sensory neuron to a motor neuron ...
... depending on the range that it covers (longer axons are myelinated). - it is possible for more than one interneuron to be involved in ‘connecting’ a sensory neuron to a motor neuron ...
DOC - ADAM Interactive Anatomy
... Chemical synapses are not as fast as electrical but are the most common type of synapse. A chemical, called a ______________________, is released from the sending neuron and travels across the ___________________(a gap between the neurons) to the receiving neuron. Advantages of the chemical synapse: ...
... Chemical synapses are not as fast as electrical but are the most common type of synapse. A chemical, called a ______________________, is released from the sending neuron and travels across the ___________________(a gap between the neurons) to the receiving neuron. Advantages of the chemical synapse: ...
Lecture_30_2014
... • Excitatory synapses cause the post-synaptic cell to become less negative triggering an excitatory post-synaptic potential (EPSP) – Increases the likelihood of firing an action potential ...
... • Excitatory synapses cause the post-synaptic cell to become less negative triggering an excitatory post-synaptic potential (EPSP) – Increases the likelihood of firing an action potential ...
15_Neuro
... synapse to receptor sites on the dendrite of the next neuron. Generates the next electrical stimulus. Terminal ends of the axon release a transmitter substance that affects the dendrites of the next neuron. One way transmission of the impulse is assured because only the axons release these che ...
... synapse to receptor sites on the dendrite of the next neuron. Generates the next electrical stimulus. Terminal ends of the axon release a transmitter substance that affects the dendrites of the next neuron. One way transmission of the impulse is assured because only the axons release these che ...
04-21-06
... – Electrical current flows directly from one cell to another via a gap junction (tail flick escape response in lobster uses electrical connection because it must be as fast as possible). ...
... – Electrical current flows directly from one cell to another via a gap junction (tail flick escape response in lobster uses electrical connection because it must be as fast as possible). ...
Nervous Tissue
... • Gray matter = nerve cell bodies, dendrites, axon terminals, bundles of unmyelinated axons and neuroglia (gray color) – In the spinal cord = gray matter forms an H-shaped inner core surrounded by white matter – In the brain = a thin outer shell of gray matter covers the surface & is found in cluste ...
... • Gray matter = nerve cell bodies, dendrites, axon terminals, bundles of unmyelinated axons and neuroglia (gray color) – In the spinal cord = gray matter forms an H-shaped inner core surrounded by white matter – In the brain = a thin outer shell of gray matter covers the surface & is found in cluste ...
Document
... b. The choline is then taken up by the axon terminal and used to make more ACh 2. What happens in postsynaptic cell? a. Binding to receptor initiates release of a “second messenger” into the cytoplasm of the postsynaptic cell. This is most often Ca ion, cyclic AMP (= cAMP), or cyclic GMP (= cGMP). b ...
... b. The choline is then taken up by the axon terminal and used to make more ACh 2. What happens in postsynaptic cell? a. Binding to receptor initiates release of a “second messenger” into the cytoplasm of the postsynaptic cell. This is most often Ca ion, cyclic AMP (= cAMP), or cyclic GMP (= cGMP). b ...
Lecture 2_101_blanks
... Psychology 101: Lecture 2 Neuroscience and Behavior Parts of a Neuron 3 main parts _________________ Receive information from other neurons _________________ (cell body) Cellular maintenance _________________ Transmits information to other neurons How a Neuron Works What do you know about how a neur ...
... Psychology 101: Lecture 2 Neuroscience and Behavior Parts of a Neuron 3 main parts _________________ Receive information from other neurons _________________ (cell body) Cellular maintenance _________________ Transmits information to other neurons How a Neuron Works What do you know about how a neur ...
Physiology
... The basic living unit of the body is the cell. All cells use oxygen as one of the major substances from which energy is divided; the oxygen combines with carbohydrates, fat or protein to release the energy required for cell function. About 60% of the adult human body is fluid, most of this fluid is ...
... The basic living unit of the body is the cell. All cells use oxygen as one of the major substances from which energy is divided; the oxygen combines with carbohydrates, fat or protein to release the energy required for cell function. About 60% of the adult human body is fluid, most of this fluid is ...
Neuroanatomy Part 2
... Taste and smell are often associated. This is because odors from food will pass through the nasopharynx and nasal cavity and stimulate the olfactory receptors. A given concentration of a substance will stimulate the olfactory system thousand times more than taste. Each taste bud is an oval body made ...
... Taste and smell are often associated. This is because odors from food will pass through the nasopharynx and nasal cavity and stimulate the olfactory receptors. A given concentration of a substance will stimulate the olfactory system thousand times more than taste. Each taste bud is an oval body made ...
Kingdom Anamalia Terms
... move nutrients, oxygen, information, and waste throughout the organism. • Plants have vascular systems to move water, sugar and nutrients around– ...
... move nutrients, oxygen, information, and waste throughout the organism. • Plants have vascular systems to move water, sugar and nutrients around– ...
Introduction to Cellular and Molecular Neurobiology (and what it`s for).
... Neurons carry out basic cellular processes like protein synthesis and energy ...
... Neurons carry out basic cellular processes like protein synthesis and energy ...
word - My eCoach
... 13. All students are required to have vaccines before entering public school. Use the information in the above figure to recognize if this vaccine requirement is a good idea. a. There is no good reason to vaccinate for a disease, since the body will make antibodies and have a response to the infecti ...
... 13. All students are required to have vaccines before entering public school. Use the information in the above figure to recognize if this vaccine requirement is a good idea. a. There is no good reason to vaccinate for a disease, since the body will make antibodies and have a response to the infecti ...
Chapter - Heartland Community College
... A. The resting potential of a typical neuron is -70 mV within the neuron. B. There is a difference in electrical potential between the sides of the cell membrane. C. There is a voltage difference between the inside and the outside of the cell membrane. D. The resting potential is the difference in e ...
... A. The resting potential of a typical neuron is -70 mV within the neuron. B. There is a difference in electrical potential between the sides of the cell membrane. C. There is a voltage difference between the inside and the outside of the cell membrane. D. The resting potential is the difference in e ...
Neuroscience and Behavior
... excitatory and inhibitory signals from many neurons. When the excitatory signals minus the inhibitory signals exceed a minimum intensity (threshold) the neuron fires an action potential. ...
... excitatory and inhibitory signals from many neurons. When the excitatory signals minus the inhibitory signals exceed a minimum intensity (threshold) the neuron fires an action potential. ...
Lecture notes for Chapter 13
... above schema separate from Special sensory and Visceral sensory) Receives inputs from Exteroceptors, proprioceptors, and interoceptors Input relayed toward head, but processed along way ...
... above schema separate from Special sensory and Visceral sensory) Receives inputs from Exteroceptors, proprioceptors, and interoceptors Input relayed toward head, but processed along way ...
Chapter 7
... • 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 storage sites in the taste receptor, increasing the re ...
... • 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 storage sites in the taste receptor, increasing the re ...
The Nervous System Part I
... Axon terminal – small swelling at tips of branched end of an axon Synapse – region of close proximity between two neurons Presynaptic membrane – membrane of first neuron Postsynaptic membrane – membrane of next neuron Synaptic cleft – small gap between presynaptic and postsynaptic neuron Neurotrans ...
... Axon terminal – small swelling at tips of branched end of an axon Synapse – region of close proximity between two neurons Presynaptic membrane – membrane of first neuron Postsynaptic membrane – membrane of next neuron Synaptic cleft – small gap between presynaptic and postsynaptic neuron Neurotrans ...
sensory, motor, and integrative systems
... From the thalamus, where does somatic sensory information go? From the thalamus, the sensory information proceeds to the somatosensory (primary sensory cortex) cortex of the postcentral gyrus in the parietal lobe of the cerebrum. It is in this cortical region that the sensory input becomes conscious ...
... From the thalamus, where does somatic sensory information go? From the thalamus, the sensory information proceeds to the somatosensory (primary sensory cortex) cortex of the postcentral gyrus in the parietal lobe of the cerebrum. It is in this cortical region that the sensory input becomes conscious ...
Respiratory and Nervous Systems
... The neurotransmitters diffuse across the cleft. The neurotransmitters bind with specific receptors on the postsynaptic membrane. Depolarization occurs on the postsynaptic membrane if threshold is reached. The neurotransmitter is destroyed by an enzyme (ex. acetylcholinesterase) or reabsorbed back in ...
... The neurotransmitters diffuse across the cleft. The neurotransmitters bind with specific receptors on the postsynaptic membrane. Depolarization occurs on the postsynaptic membrane if threshold is reached. The neurotransmitter is destroyed by an enzyme (ex. acetylcholinesterase) or reabsorbed back in ...
Ch. 15 – Sensory Pathways and the Somatic Nervous System
... Extremely strong visceral pain sensations can cross-stimulate somatic pain interneurons located at the same level of the SC or brain stem, so you feel pain in the corresponding part of the body surface = referred pain (e.g. heart attack, appendicitis, etc.) ...
... Extremely strong visceral pain sensations can cross-stimulate somatic pain interneurons located at the same level of the SC or brain stem, so you feel pain in the corresponding part of the body surface = referred pain (e.g. heart attack, appendicitis, etc.) ...
Stimulus (physiology)
In physiology, a stimulus (plural stimuli) is a detectable change in the internal or external environment. The ability of an organism or organ to respond to external stimuli is called sensitivity. When a stimulus is applied to a sensory receptor, it normally elicits or influences a reflex via stimulus transduction. These sensory receptors can receive information from outside the body, as in touch receptors found in the skin or light receptors in the eye, as well as from inside the body, as in chemoreceptors and mechanorceptors. An internal stimulus is often the first component of a homeostatic control system. External stimuli are capable of producing systemic responses throughout the body, as in the fight-or-flight response. In order for a stimulus to be detected with high probability, its level must exceed the absolute threshold; if a signal does reach threshold, the information is transmitted to the central nervous system (CNS), where it is integrated and a decision on how to react is made. Although stimuli commonly cause the body to respond, it is the CNS that finally determines whether a signal causes a reaction or not.