Muscular System
... o Neurotransmitters are stored in membrane-bound vesicles of the nerve ending (axon terminal), each containing thousands of neurotransmitter molecules. o When an impulse moves along the axon and arrives at the axon terminal, these vesicles migrate to the membrane in the gap and release their neurot ...
... o Neurotransmitters are stored in membrane-bound vesicles of the nerve ending (axon terminal), each containing thousands of neurotransmitter molecules. o When an impulse moves along the axon and arrives at the axon terminal, these vesicles migrate to the membrane in the gap and release their neurot ...
Hippocampus, hippocampal sclerosis and epilepsy
... the dentate gyrus granule cell dispersion are also characteristic of HS [14]. They constitute a histological basis of functional reorganization of the hippocampus manifested by excessive excitation in the abovementioned excitatory reciprocal circuit of nerve impulses EC – dentate gyrus – CA3 – CA1 – ...
... the dentate gyrus granule cell dispersion are also characteristic of HS [14]. They constitute a histological basis of functional reorganization of the hippocampus manifested by excessive excitation in the abovementioned excitatory reciprocal circuit of nerve impulses EC – dentate gyrus – CA3 – CA1 – ...
7. MODELING THE SOMATOTOPIC MAP 7.1 The Somatotopic Map
... in which chemical control processes are also significantly involved (Campenot 1977). However, the value of such a demonstration is not primarily the description of biological detail, but the isolation of significant and simple functional principles and their capacity for contributing to important or ...
... in which chemical control processes are also significantly involved (Campenot 1977). However, the value of such a demonstration is not primarily the description of biological detail, but the isolation of significant and simple functional principles and their capacity for contributing to important or ...
PHYSIOLOGICAL PSYCHOLOGY B.Sc. Counselling Psychology
... and the distance separating the ears. Neurons of the medial superior olive are able to use this phase difference as an aid to locating the source of the sound. A second cue to location comes from sound intensity differences that arise from what is called the sonic shadow. This method of detection is ...
... and the distance separating the ears. Neurons of the medial superior olive are able to use this phase difference as an aid to locating the source of the sound. A second cue to location comes from sound intensity differences that arise from what is called the sonic shadow. This method of detection is ...
Laboratory Exercise 10: Anatomy and Physiology of the Spinal Cord
... The withdrawal or flexor reflex has an interneuron between the sensory and motor neuron. Due to the interneuron, it brings the stimulus to the level of consciousness. This reflex has at least two synapses. The withdrawal reflex draws a body part away from a harmful stimulus to prevent damage to the ...
... The withdrawal or flexor reflex has an interneuron between the sensory and motor neuron. Due to the interneuron, it brings the stimulus to the level of consciousness. This reflex has at least two synapses. The withdrawal reflex draws a body part away from a harmful stimulus to prevent damage to the ...
NMDA Receptors Contribute to Primary Visceral Afferent
... synaptic transmission in the NTS may be due to true differences in the glutamate receptor subtypes activated in these different autonomic reflex pathways or to limitations of the microinjection technique, which typically relies on relatively large volumes (10–100 nl) of highly concentrated agents th ...
... synaptic transmission in the NTS may be due to true differences in the glutamate receptor subtypes activated in these different autonomic reflex pathways or to limitations of the microinjection technique, which typically relies on relatively large volumes (10–100 nl) of highly concentrated agents th ...
P312Ch11_Auditory III (Coding Frequency And Intensity
... If a sound is composed of several frequencies, it will activate several receptors – one for each of the frequencies comprising the sound. Analogy: 100s of different cone types in the eye - a different type of cone for each wavelength of light. Since each auditory nerve synapses only with hair cells ...
... If a sound is composed of several frequencies, it will activate several receptors – one for each of the frequencies comprising the sound. Analogy: 100s of different cone types in the eye - a different type of cone for each wavelength of light. Since each auditory nerve synapses only with hair cells ...
Ch 15 Chemical Senses
... – 2DG, which contains glucose, is ingested into an animal – Animal is exposed to different chemicals – Neural activation is measured by amount of radioactivity present • This technique shows the pattern of neural activation is Figure 15.10 These molecules have the same related to both chemical chemi ...
... – 2DG, which contains glucose, is ingested into an animal – Animal is exposed to different chemicals – Neural activation is measured by amount of radioactivity present • This technique shows the pattern of neural activation is Figure 15.10 These molecules have the same related to both chemical chemi ...
A17 - Viktor`s Notes for the Neurosurgery Resident
... Sensory receptors - transducers that convert various forms of energy in environment into action potentials in neurons. sensory receptors may be: a) neurons (distal tip of peripheral axon of sensory neuron) – e.g. in skin receptors. b) specialized cells (that release neurotransmitter and generate a ...
... Sensory receptors - transducers that convert various forms of energy in environment into action potentials in neurons. sensory receptors may be: a) neurons (distal tip of peripheral axon of sensory neuron) – e.g. in skin receptors. b) specialized cells (that release neurotransmitter and generate a ...
CONTROL 1 1ª EVALUACIÓN
... made in one part of the body, they travel to other parts of the body where they help control how cells and organs do their work. For example, insulin is a hormone that's made by the beta cells in the pancreas. When it's released into the blood, insulin helps regulate how the cells of the body use gl ...
... made in one part of the body, they travel to other parts of the body where they help control how cells and organs do their work. For example, insulin is a hormone that's made by the beta cells in the pancreas. When it's released into the blood, insulin helps regulate how the cells of the body use gl ...
Chapter 3
... When there is damage to an axon, usually there are changes, called chromatolysis, which occur in the cell body of the affected cell; this causes swelling of the cell body and peaks between 10 and 20 days after injury. By the third to fifth day, degeneration of the distal portion of the neuronal proc ...
... When there is damage to an axon, usually there are changes, called chromatolysis, which occur in the cell body of the affected cell; this causes swelling of the cell body and peaks between 10 and 20 days after injury. By the third to fifth day, degeneration of the distal portion of the neuronal proc ...
Neurotransmitter Function
... dendritic spine of another neuron (but no touching!) The terminal button converts action potentials into the release of neurotransmitter. ...
... dendritic spine of another neuron (but no touching!) The terminal button converts action potentials into the release of neurotransmitter. ...
Degeneration and Regeneration in Crustacean
... study of degenerative phenomena in Crustacea may be of interest because of the long-term survival of certain crayfish nerve axons and terminals following separation from their cell bodies. Thus, the nature of nerve-glial interactions, the longevity of messenger RNA, or the axonal capability for prot ...
... study of degenerative phenomena in Crustacea may be of interest because of the long-term survival of certain crayfish nerve axons and terminals following separation from their cell bodies. Thus, the nature of nerve-glial interactions, the longevity of messenger RNA, or the axonal capability for prot ...
Joint EuroSPIN/NeuroTime Meeting 2013, January 14
... many motor and cognitive functions. The striatum, the input stage of the basal ganglia, is a major recipient of massive glutamatergic inputs from the cerebral cortex and thalamus. Medium spiny neurons (MSNs) dominate in the striatum (up to 95% in rodents). They are inhibitory (GABAergic) and have me ...
... many motor and cognitive functions. The striatum, the input stage of the basal ganglia, is a major recipient of massive glutamatergic inputs from the cerebral cortex and thalamus. Medium spiny neurons (MSNs) dominate in the striatum (up to 95% in rodents). They are inhibitory (GABAergic) and have me ...
multispectral labeling technique to map many neighboring axonal
... gland such that the concentrated WGA (10 mg ml−1) at each injection site diffused into nearby areas and overlapped with the sites of dye spillover from other dye injections (Fig. 3b). In the experiments described below, the four dye injections covered an area of ~1 cm2, or ~10% of the flattened glan ...
... gland such that the concentrated WGA (10 mg ml−1) at each injection site diffused into nearby areas and overlapped with the sites of dye spillover from other dye injections (Fig. 3b). In the experiments described below, the four dye injections covered an area of ~1 cm2, or ~10% of the flattened glan ...
Neuroscience and Behavior Term Explanation
... Axons- part of a neuron where neural impulses take The longest part of a neuron place, which enables information to be sent to other neurons Myelin sheath- insulates, or covers the axon, which When myelin sheath starts to disintegrate, or disappear helps to speed up communication then multiple scler ...
... Axons- part of a neuron where neural impulses take The longest part of a neuron place, which enables information to be sent to other neurons Myelin sheath- insulates, or covers the axon, which When myelin sheath starts to disintegrate, or disappear helps to speed up communication then multiple scler ...
3-Biological Bases-table - Miami Beach Senior High School
... Axons- part of a neuron where neural impulses take The longest part of a neuron place, which enables information to be sent to other neurons Myelin sheath- insulates, or covers the axon, which When myelin sheath starts to disintegrate, or disappear helps to speed up communication then multiple scler ...
... Axons- part of a neuron where neural impulses take The longest part of a neuron place, which enables information to be sent to other neurons Myelin sheath- insulates, or covers the axon, which When myelin sheath starts to disintegrate, or disappear helps to speed up communication then multiple scler ...
Nothing can be coincidence: synaptic inhibition and plasticity in the
... channels in nuclear cells are also particularly prone to slow inactivation, the neurons operate with a low availability of Na+ channels despite the presence of resurgent Na+ current [20]. In slice preparations, although spontaneous firing persists, even a short bout of rapid firing evoked by current ...
... channels in nuclear cells are also particularly prone to slow inactivation, the neurons operate with a low availability of Na+ channels despite the presence of resurgent Na+ current [20]. In slice preparations, although spontaneous firing persists, even a short bout of rapid firing evoked by current ...
introduction - HAL
... the stability and integrity of neuronal networks (3). However, recent evidences suggest that rapid ...
... the stability and integrity of neuronal networks (3). However, recent evidences suggest that rapid ...
Kaan Yücel M.D., Ph.D. http://fhs122.org
... The sympathetic system is the larger of the two parts of the autonomic system and is widely distributed throughout the body, innervating the heart and lungs, the muscle in the walls of many blood vessels, the hair follicles and the sweat glands, and many abdominopelvic viscera. The function of the s ...
... The sympathetic system is the larger of the two parts of the autonomic system and is widely distributed throughout the body, innervating the heart and lungs, the muscle in the walls of many blood vessels, the hair follicles and the sweat glands, and many abdominopelvic viscera. The function of the s ...
Learning as a phenomenon occurring in a critical state
... of the soma of the post-synaptic neuron, proportional to the number of in-going terminals kinj . The plus or minus sign in Eq.(1) is for excitatory or inhibitory synapses, respectively. After firing a neuron is set to a zero resting potential and in a refractory state lasting tref = 1 time step, dur ...
... of the soma of the post-synaptic neuron, proportional to the number of in-going terminals kinj . The plus or minus sign in Eq.(1) is for excitatory or inhibitory synapses, respectively. After firing a neuron is set to a zero resting potential and in a refractory state lasting tref = 1 time step, dur ...
Muscles, tendons, ligaments and connective tissue
... Muscles can contract and shorten (concentric), contract and lengthen (eccentric) or contract and remain the same length (isometric). Cobra, forward bend, hold a weight. Slides x 3 Skeletal muscles are arranged in layers from superficial (near the surface) to deep (toward the core of the body). Big m ...
... Muscles can contract and shorten (concentric), contract and lengthen (eccentric) or contract and remain the same length (isometric). Cobra, forward bend, hold a weight. Slides x 3 Skeletal muscles are arranged in layers from superficial (near the surface) to deep (toward the core of the body). Big m ...
reciprocal inhibition in the motor nervous system of the nematode
... shown that the dorsal cord of the nematode Ascaris lumbricoides includes the processes of three types of dorsal excitatory (DE) motoneurons and one type of ventral inhibitory (VI) motoneuron. Ultrastructural studies have revealed that the axons of the DE motoneurons make monosynaptic contacts with t ...
... shown that the dorsal cord of the nematode Ascaris lumbricoides includes the processes of three types of dorsal excitatory (DE) motoneurons and one type of ventral inhibitory (VI) motoneuron. Ultrastructural studies have revealed that the axons of the DE motoneurons make monosynaptic contacts with t ...
Pyrokinin peptides` effect on the stomatogastric nervous system in
... Central pattern generators are networks of neurons that produce rhythmic and repetitive outputs. These outputs control behaviors such as walking, breathing and digestion. In the American lobster, central pattern generators control the behavior of muscles in its foregut, which allows the digestion of ...
... Central pattern generators are networks of neurons that produce rhythmic and repetitive outputs. These outputs control behaviors such as walking, breathing and digestion. In the American lobster, central pattern generators control the behavior of muscles in its foregut, which allows the digestion of ...
Neuroscience Newsletter, May 2015 - MSc/PhD/MD
... paranodal loops. An elaborated system of cytoplasmic channels within the growing myelin sheath enables membrane trafficking to the leading edge. Most of these channels close during development but can be reopened in adults by experimentally raising phosphatidylinositol-(3,4,5)-triphosphate levels, w ...
... paranodal loops. An elaborated system of cytoplasmic channels within the growing myelin sheath enables membrane trafficking to the leading edge. Most of these channels close during development but can be reopened in adults by experimentally raising phosphatidylinositol-(3,4,5)-triphosphate levels, w ...