![General anatomy [edit]](http://s1.studyres.com/store/data/000712414_1-9f164978a5775158fafd921c8e3d4cef-300x300.png)
General anatomy [edit]
... which is involved in intensive alertness modulation and in autonomic reflexes. ...
... which is involved in intensive alertness modulation and in autonomic reflexes. ...
The Spinal Cord
... Ventral (Anterior) Horn: Cell bodies of neurons which receive efferent information from the brain and send it to skeletal myocytes (somatic motor innervation) ...
... Ventral (Anterior) Horn: Cell bodies of neurons which receive efferent information from the brain and send it to skeletal myocytes (somatic motor innervation) ...
Topography of Modular Subunits in the Mushroom Bodies of the
... suggests that extrinsic neurons of this class receive synaptic inputs from Kenyon cells in every other slab, i.e., in only dark slabs or light slabs. Four of 17 Golgi-impregnated extrinsic neurons in the b lobe have segmented dendritic arborizations. We reported that about 35% of output neurons in t ...
... suggests that extrinsic neurons of this class receive synaptic inputs from Kenyon cells in every other slab, i.e., in only dark slabs or light slabs. Four of 17 Golgi-impregnated extrinsic neurons in the b lobe have segmented dendritic arborizations. We reported that about 35% of output neurons in t ...
Fig. 1
... Hsp90α/β, βIII-tubulin from Santa Cruz Biotechnology; Hsp70/Hsc70 from Stressgen; tau1 from Millipore; α-tyrosinated-tubulin from Sigma; kinesin 5c and MAP2 from Abcam; GSK3α/β from Invitrogen; pGSK3α/βS9/21, Akt and pAktS473 from Cell Signaling Technology. 2.2. Neuronal cultures and treatment Neuro ...
... Hsp90α/β, βIII-tubulin from Santa Cruz Biotechnology; Hsp70/Hsc70 from Stressgen; tau1 from Millipore; α-tyrosinated-tubulin from Sigma; kinesin 5c and MAP2 from Abcam; GSK3α/β from Invitrogen; pGSK3α/βS9/21, Akt and pAktS473 from Cell Signaling Technology. 2.2. Neuronal cultures and treatment Neuro ...
Nerves and how they work File
... Communication between neurons and between neurons and target tissue • Neurons do not directly touch one another • Neither to their directly touch their target tissue i.e. a muscle cell or glandular tissue • There is a minute gap called the …………………? • The action potential does not jump across the ga ...
... Communication between neurons and between neurons and target tissue • Neurons do not directly touch one another • Neither to their directly touch their target tissue i.e. a muscle cell or glandular tissue • There is a minute gap called the …………………? • The action potential does not jump across the ga ...
autonomic nervous system
... nerve fibers secrete mainly one or the other of two synaptic transmitter substances, acetylcholine or norepinephrine. • All preganglionic neurons are cholinergic in both the sympathetic or parasympathetic nervous systems. Therefore, acetylcholine or acetylcholine-like substance, applied to the gangl ...
... nerve fibers secrete mainly one or the other of two synaptic transmitter substances, acetylcholine or norepinephrine. • All preganglionic neurons are cholinergic in both the sympathetic or parasympathetic nervous systems. Therefore, acetylcholine or acetylcholine-like substance, applied to the gangl ...
Chapter 7 The Nervous System
... 6. Some neurons sprout new axons and establish new synapses a. New synapses = net increase in connections b. Learning requires development of new synapses ...
... 6. Some neurons sprout new axons and establish new synapses a. New synapses = net increase in connections b. Learning requires development of new synapses ...
15 2nd,3rd, 4th &6th..
... – Impaired downward & inward movement of the eye ball on the damaged side. The preganglionic parasympathetic fibers run superficially in the nerve and are therefore the first axons to suffer when a nerve is affected by external pressure. Consequently, the first sign of compression of the occulomotor ...
... – Impaired downward & inward movement of the eye ball on the damaged side. The preganglionic parasympathetic fibers run superficially in the nerve and are therefore the first axons to suffer when a nerve is affected by external pressure. Consequently, the first sign of compression of the occulomotor ...
8-5 The brain and spinal cord are surrounded by three layers of
... » Lateral gray horn visceral motor neurons ...
... » Lateral gray horn visceral motor neurons ...
excitation and inhibition of the reflex eye withdrawal of the crab
... The common shore crab, Carcinus maenas, was used in all experiments. Isolated brains were prepared for electrophysiological studies by dissecting the anterior portion of the carapace away from the rest of the body leaving the eyes, brain and statocysts intact. The oesophageal connectives and part of ...
... The common shore crab, Carcinus maenas, was used in all experiments. Isolated brains were prepared for electrophysiological studies by dissecting the anterior portion of the carapace away from the rest of the body leaving the eyes, brain and statocysts intact. The oesophageal connectives and part of ...
3 Anatomy of the Nervous System
... The vertebrate nervous system is composed of two divisions: the central nervous system and the peripheral nervous system (see Figure 3.1). Roughly speaking, the central nervous system (CNS) is the division of the nervous system that is located within the skull and spine; the peripheral nervous syste ...
... The vertebrate nervous system is composed of two divisions: the central nervous system and the peripheral nervous system (see Figure 3.1). Roughly speaking, the central nervous system (CNS) is the division of the nervous system that is located within the skull and spine; the peripheral nervous syste ...
The cytoarchitectonic and neuronal structure of the red nucleus in
... rarely conical, dendritic trunks, which at the distance of 10–40 mm from the soma (even within one neuron) divide into secondary and subsequently up to quaternary dendrites. Dendritic branches are usually longer than their parent dendrite. In that case, when the length of the secondary dendrites is ...
... rarely conical, dendritic trunks, which at the distance of 10–40 mm from the soma (even within one neuron) divide into secondary and subsequently up to quaternary dendrites. Dendritic branches are usually longer than their parent dendrite. In that case, when the length of the secondary dendrites is ...
1 - Test Bank
... Chapter 2 1. In the structure of the neuron, the __________ sends information to other cells. a. axon b. dendrite c. soma d. myelin ANS: a LO=2.1 2. Which type of cell makes up 10 percent of the brain? a. glial cells b. neurons c. stem cells d. afferent cells ANS: b LO=2.1 3. Damaged nerve fibers in ...
... Chapter 2 1. In the structure of the neuron, the __________ sends information to other cells. a. axon b. dendrite c. soma d. myelin ANS: a LO=2.1 2. Which type of cell makes up 10 percent of the brain? a. glial cells b. neurons c. stem cells d. afferent cells ANS: b LO=2.1 3. Damaged nerve fibers in ...
Slide 1
... difficult to demonstrate the synaptic connections of these fibers, and therefore the incidence of synapses on these fibers is still being debated. The basket axon system (M fibers) arises from the median raphe (MnR) nucleus with thick, non-varicose axons, giving rise to branches with characteristic ...
... difficult to demonstrate the synaptic connections of these fibers, and therefore the incidence of synapses on these fibers is still being debated. The basket axon system (M fibers) arises from the median raphe (MnR) nucleus with thick, non-varicose axons, giving rise to branches with characteristic ...
New neurons retire early - The Gould Lab
... of optically silencing new neurons of different ages in living mice to determine their influence on cognitive function. To do this, they examined two different learning tasks that are dependent on the hippocampus: spatial navigation in the Morris water maze and contextual fear conditioning. Silencin ...
... of optically silencing new neurons of different ages in living mice to determine their influence on cognitive function. To do this, they examined two different learning tasks that are dependent on the hippocampus: spatial navigation in the Morris water maze and contextual fear conditioning. Silencin ...
The Autonomic Nervous System
... Paraympathetic input to the blood vessel • Parasympathetic vasodilator fibers (releasing ACh) are far less common than vasoconstrictor sympathetic fibers • They supply salivary glands, some GI glands and erectile tissue • They indirectly cause vasodilation binding to M receptor on neighboring cel ...
... Paraympathetic input to the blood vessel • Parasympathetic vasodilator fibers (releasing ACh) are far less common than vasoconstrictor sympathetic fibers • They supply salivary glands, some GI glands and erectile tissue • They indirectly cause vasodilation binding to M receptor on neighboring cel ...
FUNCTIONAL NEUROANATOMY OF SPINAL CORD LEARNING
... The intermediate group of cells from the small lateral gray column which extends from 1st thoracic to 2nd or 3rd lumber segments of spinal cord Cells are relatively small and gives rise to preganglionic sympathetic fibers. Similar group of cells found in the 2 nd,3rd and 4th sacral spinal segments o ...
... The intermediate group of cells from the small lateral gray column which extends from 1st thoracic to 2nd or 3rd lumber segments of spinal cord Cells are relatively small and gives rise to preganglionic sympathetic fibers. Similar group of cells found in the 2 nd,3rd and 4th sacral spinal segments o ...
FUNCTIONAL NEUROANATOMY OF SPINAL CORD LEARNING
... Nerve cells in anterior gray column: Large multipolar cells; their axons form alpha efferent to skeletal muscle Smaller multipolar cell; their axons form gamma efferents to innervate intrafusal fiber of neuromuscular spindles Smaller multipolar cell; their axons form gamma efferents to innervate int ...
... Nerve cells in anterior gray column: Large multipolar cells; their axons form alpha efferent to skeletal muscle Smaller multipolar cell; their axons form gamma efferents to innervate intrafusal fiber of neuromuscular spindles Smaller multipolar cell; their axons form gamma efferents to innervate int ...
The Spinal Cord and Spinal Nerve
... Passes nerve impulse into the spinal cord through the dorsal root to the posterior horn of the gray matter. 3. Center - region of the spinal cord where the incoming sensory information generates an outgoing motor impulse - usually contains internuncial neurons 4. Motor Neuron - transmits impulses to ...
... Passes nerve impulse into the spinal cord through the dorsal root to the posterior horn of the gray matter. 3. Center - region of the spinal cord where the incoming sensory information generates an outgoing motor impulse - usually contains internuncial neurons 4. Motor Neuron - transmits impulses to ...
Ch 12
... • Typically short, highly branched & unmyelinated • Surfaces specialized for contact with other neurons • Contains neurofibrils & Nissl bodies ...
... • Typically short, highly branched & unmyelinated • Surfaces specialized for contact with other neurons • Contains neurofibrils & Nissl bodies ...
Chapter 3
... • Typically short, highly branched & unmyelinated • Surfaces specialized for contact with other neurons • Contains neurofibrils & Nissl bodies ...
... • Typically short, highly branched & unmyelinated • Surfaces specialized for contact with other neurons • Contains neurofibrils & Nissl bodies ...
exuberance in the development of cortical
... exuberance refers to the formation of transient projections between macroscopic brain parts. It includes transient afferent and efferent projections between a cortical site and one or more other brain regions, such as cortical areas, subcortical nuclei, the spinal cord or the cerebellum. Microscopic ...
... exuberance refers to the formation of transient projections between macroscopic brain parts. It includes transient afferent and efferent projections between a cortical site and one or more other brain regions, such as cortical areas, subcortical nuclei, the spinal cord or the cerebellum. Microscopic ...
Linear associator
... Labmodule: Linear Associator Introduction: The learning rules discussed in the previous tutorial can be applied to a number of models of human memory. In this tutorial, you will explore the properties of one of the more basic memory models, the linear associator. In the linear associator, two layers ...
... Labmodule: Linear Associator Introduction: The learning rules discussed in the previous tutorial can be applied to a number of models of human memory. In this tutorial, you will explore the properties of one of the more basic memory models, the linear associator. In the linear associator, two layers ...
Axon
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An axon (from Greek ἄξων áxōn, axis), also known as a nerve fibre, is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body. The function of the axon is to transmit information to different neurons, muscles and glands. In certain sensory neurons (pseudounipolar neurons), such as those for touch and warmth, the electrical impulse travels along an axon from the periphery to the cell body, and from the cell body to the spinal cord along another branch of the same axon. Axon dysfunction causes many inherited and acquired neurological disorders which can affect both the peripheral and central neurons.An axon is one of two types of protoplasmic protrusions that extrude from the cell body of a neuron, the other type being dendrites. Axons are distinguished from dendrites by several features, including shape (dendrites often taper while axons usually maintain a constant radius), length (dendrites are restricted to a small region around the cell body while axons can be much longer), and function (dendrites usually receive signals while axons usually transmit them). All of these rules have exceptions, however.Some types of neurons have no axon and transmit signals from their dendrites. No neuron ever has more than one axon; however in invertebrates such as insects or leeches the axon sometimes consists of several regions that function more or less independently of each other. Most axons branch, in some cases very profusely.Axons make contact with other cells—usually other neurons but sometimes muscle or gland cells—at junctions called synapses. At a synapse, the membrane of the axon closely adjoins the membrane of the target cell, and special molecular structures serve to transmit electrical or electrochemical signals across the gap. Some synaptic junctions appear partway along an axon as it extends—these are called en passant (""in passing"") synapses. Other synapses appear as terminals at the ends of axonal branches. A single axon, with all its branches taken together, can innervate multiple parts of the brain and generate thousands of synaptic terminals.