CHAPTER 10: NERVOUS SYSTEM I
... depolarization of axonal terminal/synaptic knob. Ca2+ channels open and calcium ions rush into axonal terminal causing synaptic vesicles (filled with neurotransmitter/NT) to release NT via exocytosis into the synaptic cleft. NT diffuses across synaptic cleft and depolarizes the postsynaptic neuron's ...
... depolarization of axonal terminal/synaptic knob. Ca2+ channels open and calcium ions rush into axonal terminal causing synaptic vesicles (filled with neurotransmitter/NT) to release NT via exocytosis into the synaptic cleft. NT diffuses across synaptic cleft and depolarizes the postsynaptic neuron's ...
Introduction to Psychology - John Marshall High School
... and the dendrite or cell body of the receiving neuron tiny gap at this junction is called the synaptic gap or cleft ...
... and the dendrite or cell body of the receiving neuron tiny gap at this junction is called the synaptic gap or cleft ...
nervous system text a - powerpoint presentation
... ganglia. Developmentally, this type of neuron starts out as a bipolar neuron. ...
... ganglia. Developmentally, this type of neuron starts out as a bipolar neuron. ...
CHAPTER 10: NERVOUS SYSTEM I
... Sensory receptors (located at the ends of peripheral neurons) detect changes (i.e. are stimulated) occurring in their surroundings; Once stimulated, sensory receptors transmit a sensory impulse to the CNS. A sensory impulse is carried on a sensory neuron. ...
... Sensory receptors (located at the ends of peripheral neurons) detect changes (i.e. are stimulated) occurring in their surroundings; Once stimulated, sensory receptors transmit a sensory impulse to the CNS. A sensory impulse is carried on a sensory neuron. ...
Introduction to neural computation
... activated simultaneously (synchronously), then the strength of that synapse is selectively increased. 2. If two neurons on either side of a synapse are activated asynchronously, then that synapse is selectively weakened or eliminated.a ...
... activated simultaneously (synchronously), then the strength of that synapse is selectively increased. 2. If two neurons on either side of a synapse are activated asynchronously, then that synapse is selectively weakened or eliminated.a ...
Chapter 10b
... of the middle ear, oval window create fluid which vibrate. waves within the cochlea. ...
... of the middle ear, oval window create fluid which vibrate. waves within the cochlea. ...
Unit 1: Maintaining Dynamic Equilibrium (II) The Nervous System
... It triggers opening of special calcium ion gates. ...
... It triggers opening of special calcium ion gates. ...
Ear
... bathed by the fluids of the mouth. Many chemicals can generate the sensation of taste, but taste sensations (modalities) are traditionally divided into four basic groups: sweet, sour, salty, and bitter, each group having a distinct transductional system. For example, salt taste begins with sodium en ...
... bathed by the fluids of the mouth. Many chemicals can generate the sensation of taste, but taste sensations (modalities) are traditionally divided into four basic groups: sweet, sour, salty, and bitter, each group having a distinct transductional system. For example, salt taste begins with sodium en ...
Chapter 5
... A neuron contains two types of nerve fibers: dendrites and axons -Dendrites allow nerve impulses to be transmitted to the nerve’s cell body -Axons send away impulses from the cell body ...
... A neuron contains two types of nerve fibers: dendrites and axons -Dendrites allow nerve impulses to be transmitted to the nerve’s cell body -Axons send away impulses from the cell body ...
Biology of the Mind
... When these channels close, others open and positive atoms are pumped back out, restoring the neuron to its polarized state. When electrical impulses reach the axon terminal, they stimulate the release of chemical messengers called neurotransmitters that cross the junction between neurons called ...
... When these channels close, others open and positive atoms are pumped back out, restoring the neuron to its polarized state. When electrical impulses reach the axon terminal, they stimulate the release of chemical messengers called neurotransmitters that cross the junction between neurons called ...
Unit 2 - Monroe Community College
... communicate here they meet: the synapse ● separated by the synaptic cleft: a microscopic gap ● presynaptic neuron and postsynaptic neuron ● neurotransmitters: stored in terminal button’s vesicles ● neurotransmitters diffuse across the cleft to the membrane of the receiving neuron ● bind with special ...
... communicate here they meet: the synapse ● separated by the synaptic cleft: a microscopic gap ● presynaptic neuron and postsynaptic neuron ● neurotransmitters: stored in terminal button’s vesicles ● neurotransmitters diffuse across the cleft to the membrane of the receiving neuron ● bind with special ...
ppt - UK College of Arts & Sciences
... Record excitatory and inhibitory junctional potentials (EJP's and IJP's) will be a goal fro the students. Recording action potentials extracellularly from the superficial branch of the third root using a fine-tipped suction electrode applied to the side of the nerve, and match different sized spikes ...
... Record excitatory and inhibitory junctional potentials (EJP's and IJP's) will be a goal fro the students. Recording action potentials extracellularly from the superficial branch of the third root using a fine-tipped suction electrode applied to the side of the nerve, and match different sized spikes ...
File
... the dendrite or cell body of the receiving neuron tiny gap at this junction is called the synaptic gap or cleft ...
... the dendrite or cell body of the receiving neuron tiny gap at this junction is called the synaptic gap or cleft ...
Class Notes
... Multipolar neurons have many nerve fibers arising from their cell bodies and are commonly found in the brain and spinal cord. ...
... Multipolar neurons have many nerve fibers arising from their cell bodies and are commonly found in the brain and spinal cord. ...
The Peripheral Nervous System The P.N.S.
... cord to the hand muscles, telling them to draw away. __________________________________________ __________________________________________ __________________________________________ ...
... cord to the hand muscles, telling them to draw away. __________________________________________ __________________________________________ __________________________________________ ...
Smell
... Receptor binding activates an effector Olfactory receptors between the olfactory receptor axons and known as the lateral olfactory tract Olfaction--sense of smell 1. Not the nose (water soluble) Circuit enzyme (either adenylate cyclase or phospho1.Only receptor discussed thus far that are mitral cel ...
... Receptor binding activates an effector Olfactory receptors between the olfactory receptor axons and known as the lateral olfactory tract Olfaction--sense of smell 1. Not the nose (water soluble) Circuit enzyme (either adenylate cyclase or phospho1.Only receptor discussed thus far that are mitral cel ...
Report
... dorsal root ganglia (DRG), accounting for the largest fraction of the resting potassium conductance in these neurons. Recent evidence supports the role of TRESK in setting up sensory neuron excitability under pathological conditions. (Tulleuda et al., 2011, Mol Pain). The exaggerated glycolytic meta ...
... dorsal root ganglia (DRG), accounting for the largest fraction of the resting potassium conductance in these neurons. Recent evidence supports the role of TRESK in setting up sensory neuron excitability under pathological conditions. (Tulleuda et al., 2011, Mol Pain). The exaggerated glycolytic meta ...
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.