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771 images for NERVE-CELL
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Stem cell research, Max Planck Institute for Molecular Genetics, laboratory technician observing nerve cells through a micros...
Stem cell research, Max Planck Institute for Molecular Genetics, laboratory technician observing nerve cells through a microscope, Berlin, Germany
SIGHT. SIGHT Night and day vision: retinal cones. A cone is a photoreceptor cell in the retina which makes it possible to see...
SIGHT. SIGHT Night and day vision: retinal cones. A cone is a photoreceptor cell in the retina which makes it possible to see in daylight (diurnal vision, below) and at night (nocturnal vision, above).
SYNAPSE. SYNAPSE LTP (long-term potentiation). Mechanism of LTP (long-term potentiation), which plays a role in learning. Sta...
SYNAPSE. SYNAPSE LTP (long-term potentiation). Mechanism of LTP (long-term potentiation), which plays a role in learning. Stage 1 (See images no. 11969 05 and 11970 05 for stages 2 and 3). In response to a stimulus (sight, taste, touch, etc.), an electrical signal is produced which triggers the release of massive quantities of glutamate (purple triangles) by the presynaptic element. This in turn triggers a massive release of calcium (red spheres) in the dendrite (postsynaptic element), se
NERVE IMPULSE, DRAWING. The sensorial receptors. Informations reach the sensorial cell at the top through the opening of an i...
NERVE IMPULSE, DRAWING. The sensorial receptors. Informations reach the sensorial cell at the top through the opening of an ion channel in violet. This chemical message is transformed into an electrical signal, that leads to the exocytosis of neurotransmitters green triang
Stem cell research, Max Planck Institute for Molecular Genetics, laboratory technician observing nerve cells through a micros...
Stem cell research, Max Planck Institute for Molecular Genetics, laboratory technician observing nerve cells through a microscope, Berlin, Germany
NEURINOMA, X_RAY. Neuronima, developped on the sheath of an intercostal nerve. Thoracic x_ray in front view.
Illustration of the nerve roots of the spinal nerves coming out of the vertebrae. The anterior ramus will innervate the muscl...
Illustration of the nerve roots of the spinal nerves coming out of the vertebrae. The anterior ramus will innervate the muscles as well as the structure of the members and the lateral and ventral parts of the trunk. The posterior ramus will innervate deep muscles and the back's skin. Anterior roots leave the communicating rami and join the sympathetic trunk's glands on each side of the vertebral body.
NEURON. Pyramidal neurons of a rabbit hippocampus. The hippocampus is part of the cerebral cortex with characteristic large s...
NEURON. Pyramidal neurons of a rabbit hippocampus. The hippocampus is part of the cerebral cortex with characteristic large sized pyramidal cells. The hippocampus is a nerve center implicated in memory. Each neuron has a cell body, an axon a protruding segment o
Transmission electron micrograph (TEM) of a section of axone. It is protected by a layer of myelin around.
SIGHT. SIGHT Night and day vision: retinal cones. A cone is a photoreceptor cell in the retina which makes it possible to see...
SIGHT. SIGHT Night and day vision: retinal cones. A cone is a photoreceptor cell in the retina which makes it possible to see in daylight (diurnal vision) and at night (nocturnal vision).
RETINA, SEM. RETINA, SEM The retina is a membrane covering the eye´s interior, containing 3 types of cells which capture ligh...
RETINA, SEM. RETINA, SEM The retina is a membrane covering the eye´s interior, containing 3 types of cells which capture light: photoreceptor (rod and cone), bipolar, and ganglion. Photoreceptor cones are responsible for visual acuity and color vision. Cones are responsible for vision in low-light levels and for peripheral vision. Bipolars transmit the light signal from the cones to the ganglions, which then transmit the stimulus to the optic nerve. Here, retinal pigment epithelium (RPE) at t
RETINA, SEM. RETINA, SEM The retina is a membrane covering the eye´s interior, containing 3 types of cells which capture ligh...
RETINA, SEM. RETINA, SEM The retina is a membrane covering the eye´s interior, containing 3 types of cells which capture light: photoreceptor (rod and cone), bipolar, and ganglion. Photoreceptor cones are responsible for visual acuity and color vision. Cones are responsible for vision in low-light levels and for peripheral vision. Bipolars transmit the light signal from the cones to the ganglions, which then transmit the stimulus to the optic nerve. Here, rods, viewed under SEM. Magnification
Nerve bundle. Light micrograph of a section through a nerve bundle from the sciatic nerve. Myelin sheaths dark blue circles c...
Nerve bundle. Light micrograph of a section through a nerve bundle from the sciatic nerve. Myelin sheaths dark blue circles can be seen surrounding the axons light blue dots. Perineurium connective tissue, light blue surrounds the nerve bundle. Adipose fat cells dark brown surround the nerve bundle. Magnification: x200 when printed at 10 centimetres wide.
SKULL, SCAN. Photo essay at the regional hospital complex of Lille, France, hospital Roger Salengro, department of neurosurge...
SKULL, SCAN. Photo essay at the regional hospital complex of Lille, France, hospital Roger Salengro, department of neurosurgery, Gamma knife. Treatment of an acoustic neuroma by stereotaxic radiosurgery Gamma knife. The neurosurgeon is processing the data acquired by Scanner and MRI. Two systems of imagery that can be combined to increase the accuracy and a better definition of lesion borders. A schwannoma of the auditory nerve, also called acoustic neuroma is a benign tumor of Schwann cells for
ALZHEIMER´S DISEASE, SCINTISCAN. ALZHEIMER´S DISEASE, SCINTISCAN Scintiscan. Normal brain and evidence of cerebral atrophy.
Neurology : Examination of perception of vibration with tuning fork . On , fŸr example , polyneuropathy this is restricted
Neural stem cell. Cultured neural stem cells (multipotent nerve cells) of transgenic mouse on adhesive substrate. At center, ...
Neural stem cell. Cultured neural stem cells (multipotent nerve cells) of transgenic mouse on adhesive substrate. At center, a sphere of glial cells (astrocytes), able to reproduce by mitosis, gives by differenciation nerve cells (neurons), seen on the outside of the sphere. Light Micrograph.
Illustration of different types of cells, nerve cells, red blood cell, muscle cell, and guard cells of a leaf
PAIN, DRAWING. PAIN, DRAWING The pain circuit. The pain circuit and the body´s endorphin reaction to it.
SYNAPSE. SYNAPSE Synaptic transmission. Illustration of synaptic transmission of a nerve impulse from a synapse on neuron A (...
SYNAPSE. SYNAPSE Synaptic transmission. Illustration of synaptic transmission of a nerve impulse from a synapse on neuron A (purple) to a dendritic spine on neuron B (green). Vesicles liberate excitatory neurotransmitters (orange spheres) which attach themselves to the receptors (red) and open the sodium channels, enabling Na+ ions to penetrate a dendritic spine on neuron B, creating an electric current.
HEAD, MRI. HEAD, MRI Sagittal section. (Cf. image 0212106 for the numbers) 1. Brain. 2. Corpus callosum (splenium). 3. Septum...
HEAD, MRI. HEAD, MRI Sagittal section. (Cf. image 0212106 for the numbers) 1. Brain. 2. Corpus callosum (splenium). 3. Septum lucidum. 4. Thalamus. 5. Mamillary body. 6.Mesencephalon. 7. Pons. 8. Medulla oblongata. 9. Spinal cord. 10. Cerbellum. 11. Frontal sinus. 12. Ethmoid cells. 13. Concha. 14. Sphenoidal sinus. 15. Genioglossus muscle, tongue. 16. Mandible. 17. Rhinopharynx. 18. Oropharynx. 19. Laryngopharynx. 20. Trachea. 21. Soft palate. 22. Bone of the skull. 2
Neurology : Examination of perception of vibration with tuning fork . On , für example , polyneuropathy this is restricted
RETINA, DRAWING. Illustration of cross-section of the retina showing the photoreceptors, cones (pink) and rods (orange), and ...
RETINA, DRAWING. Illustration of cross-section of the retina showing the photoreceptors, cones (pink) and rods (orange), and the optic nerve cells (green).
GENETICS RESEARCH. GENETICS RESEARCH Photo essay. Genetics research laboratory. Gene therapy requires a gene-drug and a vecto...
GENETICS RESEARCH. GENETICS RESEARCH Photo essay. Genetics research laboratory. Gene therapy requires a gene-drug and a vector to carry it to the target cell. The study of these vectors (vectorology) has demonstrated that viruses can be useful. The pathogenic capacity of the virus is replaced by the gene-drug which is carried to the target cell by natural viral infection. Researchers are developing vectors belonging to several viral families (adenovirus, retrovirus, parvovirus, herpes viru
ALZHEIMER´S DISEASE, DRAWING. ALZHEIMER´S DISEASE, DRAWING Alzheimer’s disease is the cause of three-fourths of all cases of ...
ALZHEIMER´S DISEASE, DRAWING. ALZHEIMER´S DISEASE, DRAWING Alzheimer’s disease is the cause of three-fourths of all cases of dementia in subjects over 65 years of age. Dementia results from a reduction in the number of nerve cells and brain atrophy. A reduction in brain volume, particularly the gray matter which is rich in nerve cells, is a characteristic feature of Alzheimer’s disease.
BLOOD CAPILLARY, DRAWING. In the center, cross_section of capillaries. Above, cross_section of a muscle. Below, cross_section...
BLOOD CAPILLARY, DRAWING. In the center, cross_section of capillaries. Above, cross_section of a muscle. Below, cross_section of a nerve a neuraxon
HEAD, MRI. HEAD, MRI Sagittal section. 1. Brain. 2. Corpus callosum (splenium). 3. Septum lucidum. 4. Thalamus. 5. Mamillary ...
HEAD, MRI. HEAD, MRI Sagittal section. 1. Brain. 2. Corpus callosum (splenium). 3. Septum lucidum. 4. Thalamus. 5. Mamillary body. 6.Mesencephalon. 7. Pons. 8. Medulla oblongata. 9. Spinal cord. 10. Cerbellum. 11. Frontal sinus. 12. Ethmoid cells. 13. Concha. 14. Sphenoidal sinus. 15. Genioglossus muscle, tongue. 16. Mandible. 17. Rhinopharynx. 18. Oropharynx. 19. Laryngopharynx. 20. Trachea. 21. Soft palate. 22. Bone of the skull. 23. Internal cerebral vein, Great cere
Conceptual computer artwork of a female head that could be used to depict memory, nerve cells or artificial intelligence.
NEURINOMA, X_RAY. Neuronima, developped on the sheath of an intercostal nerve. Saggital thoracic x_ray.
Anatomical model with an illuminated brain showing the activity of nerve cells which causes head pain.
ALZHEIMER´S DISEASE, DRAWING. ALZHEIMER´S DISEASE, DRAWING Illustration of Alzheimer´s disease affection of the cortex and hi...
ALZHEIMER´S DISEASE, DRAWING. ALZHEIMER´S DISEASE, DRAWING Illustration of Alzheimer´s disease affection of the cortex and hippocampus. This image is part of a series on the brain anatomy and pathologies. See. images 0445207 for an external view, 0444707, 0444807, 0444907 and 0445007 for a median section, 0444507, 0445107 and 0445307 for a median section of the brain in the cranial box, 0444307 for the cerebral vascularization, 0446307, 0446407 and 0446507 for the cephaleas, 0443907 and 0444007
Pyramidal neurons or pyramidal cells are a type of neuron found in the brain including regions such as the cerebral cortex, h...
Pyramidal neurons or pyramidal cells are a type of neuron found in the brain including regions such as the cerebral cortex, hippocampus, and amygdala. Note the pyramid shaped soma, or cell body, after which the neuron is named.
PARKINSON´S DISEASE, TREATMENT. PARKINSON´S DISEASE, TREATMENT Henri Mondor Hospital, in the French region of Ile-de-France. ...
PARKINSON´S DISEASE, TREATMENT. PARKINSON´S DISEASE, TREATMENT Henri Mondor Hospital, in the French region of Ile-de-France. Neuro-surgery for Parkinson´s Disease. Neuronal transplants. Culture of cerebral cells. nerve cells removed from embryo (IVF) will be transplanted into the patient´s brain.
EYE, DRAWING. EYE, DRAWING The eye, retina and fovea. Illustration of the eye with the retina in close-up showing its structu...
EYE, DRAWING. EYE, DRAWING The eye, retina and fovea. Illustration of the eye with the retina in close-up showing its structure, as well as the fovea (lower left), a dimple at the center of the macula (jaune-rouge). This area provides the sharpest vision and highest level of color perception.
SYNAPSE. SYNAPSE Mechanism of LTP (long-term potentiation), after a week. Mechanism of LTP (long-term potentiation), one week...
SYNAPSE. SYNAPSE Mechanism of LTP (long-term potentiation), after a week. Mechanism of LTP (long-term potentiation), one week later. Stage 2 (See images 11968 05 and 11970 05 for stages 1 and 3). The synapse is stimulated once again, but this time, as explained in stage 1, its efficacy is enhanced. This increased sensitivity enables the nerve impulse to travel more easily from one neuron to another. This is the learning process.
Multiple nerve cells, which are also called neurons. These are responsible for passing information around the central nervous...
Multiple nerve cells, which are also called neurons. These are responsible for passing information around the central nervous system within the human body.
NEURON. NEURON A neuron is a nerve cell composed of a spherical body with a nucleus, an axon and cylindrical fiber-like exten...
NEURON. NEURON A neuron is a nerve cell composed of a spherical body with a nucleus, an axon and cylindrical fiber-like extensions with irregular contours called dendrites. Neurons send and receive sensorial and motor messages. Incoming message arrive via the dendrite and reach the cell body where the information is analyzed and sent out again via the axon. The point of junction between the dendrites of one neuron and the axon of another neuron is called a nerve synapse. Different chemical su
ACOUSTIC MACULA, DRAWING. Functionning of the macula. The macula is the organ of the static equilibrium position of the head ...
ACOUSTIC MACULA, DRAWING. Functionning of the macula. The macula is the organ of the static equilibrium position of the head and participates to the dynamic equilibrium recognition of the linear accelerations. Located at the level of the inner ear, the macula is a thickening
EYE, DRAWING. EYE, DRAWING The eye: retina and fovea. Illustration of the eye with close-up of the retina, showing its struct...
EYE, DRAWING. EYE, DRAWING The eye: retina and fovea. Illustration of the eye with close-up of the retina, showing its structure, as well as the fovea (upper right), a dimple formed at the center of the macula (jaune-rouge). This area provides the sharpest vision and highest level of color perception.
Neuron, nerve cells, dendritic tree, axons, soma, synapses, 400 X optical microscope, photomicrography , histology
Pyramidal neurons or pyramidal cells are a type of neuron found in the brain including regions such as the cerebral cortex, h...
Pyramidal neurons or pyramidal cells are a type of neuron found in the brain including regions such as the cerebral cortex, hippocampus, and amygdala. Note the pyramid shaped soma, or cell body, after which the neuron is named.
Neurology : Examination of perception of vibration with tuning fork . On , für example , polyneuropathy this is restricted
ACOUSTIC MACULA, DRAWING. Mechanism of the macula. The macula is the organ of static balance (position of the head) and parti...
ACOUSTIC MACULA, DRAWING. Mechanism of the macula. The macula is the organ of static balance (position of the head) and participate in the dynamic balance (recognition of the linear accelerations). Located at the level of the inner ear, the macula is a thickening of the inner walls of the saccule and the utricle (see images 0228706 and 0228806). It is composed of hair cells (in orange), constitute the sensory receptors, and supporting cells (in pink). Each hair cell is possessed of 40
ACOUSTIC MACULA, DRAWING. Mechanism of the macula. The macula is the organ of static balance (position of the head) and parti...
ACOUSTIC MACULA, DRAWING. Mechanism of the macula. The macula is the organ of static balance (position of the head) and participate in the dynamic balance (recognition of the linear accelerations). Located at the level of the inner ear, the macula is a thickening of the inner walls of the saccule and the utricle (see images 0228706 and 0228806). It is composed of hair cells (in orange), constitute the sensory receptors, and supporting cells (in pink). Each hair cell is possessed of 40
Illustration of the patellar reflex. On the left, an illustration of the nerve signal with, in blue, the journey of the affer...
Illustration of the patellar reflex. On the left, an illustration of the nerve signal with, in blue, the journey of the afferent impulse from the muscle spindle in the muscle near the bone marrow, counterbalanced by the efferent impulse response (red) which triggers muscle contraction, resisting and opposing stretching, and the efferent impulse (purple) which prevents the antagonistic muscle contracting. The leg remains static. On the right, an illustration of the actors in the patellar reflex.
PARKINSON´S DISEASE, TREATMENT. PARKINSON´S DISEASE, TREATMENT Henri Mondor Hospital, in the French region of Ile-de-France. ...
PARKINSON´S DISEASE, TREATMENT. PARKINSON´S DISEASE, TREATMENT Henri Mondor Hospital, in the French region of Ile-de-France. Neuro-surgery for Parkinson´s Disease. Neuronal transplants. Culture of cerebral cells. nerve cells removed from embryo (IVF) transplanted into the patient´s brain.
NERVE FIBERS, TEM. A small bundle of non_myelinated nerve fibers without a myelin sheath. These very small fibers 0.2 to 0.5 ...
NERVE FIBERS, TEM. A small bundle of non_myelinated nerve fibers without a myelin sheath. These very small fibers 0.2 to 0.5 nanometers in red are surrounded by Schwann cells green. This type of nerve fiber conducts nerve influx much slower than myelinated fibers co
ACOUSTIC NEUROMA, MRI. Photo essay at the regional hospital complex of Lille, France, hospital Roger Salengro, department of ...
ACOUSTIC NEUROMA, MRI. Photo essay at the regional hospital complex of Lille, France, hospital Roger Salengro, department of neurosurgery, Gamma knife. Treatment of an acoustic neuroma by stereotaxic radiosurgery Gamma knife. The two systems of imagery scanner and MRI can be combined to increase the accuracy and a better definition of lesion borders. A schwannoma of the auditory nerve, also called acoustic neuroma is a benign tumor of Schwann cells forming the sheath of the vestibular branch of
Anatomical model with an illuminated brain showing the activity of nerve cells which causes head pain.
RAMON AND CAJAL, Santiago (Petilla of Aragon, Navarre 1852-Madrid, 1934). Spanish histologist, physician and pathologist. He ...
RAMON AND CAJAL, Santiago (Petilla of Aragon, Navarre 1852-Madrid, 1934). Spanish histologist, physician and pathologist. He made important discoveries such as laws governing the morphology and connections of nerve cells in the brain. Nobel Prize in Medicine in 1906 along with C. Golgi.
Purkinje cells. Light micrograph of a section through the cerebellum, which has been treated with silver stains, showing puki...
Purkinje cells. Light micrograph of a section through the cerebellum, which has been treated with silver stains, showing pukinje cells dark blue and their dendritic processes. Magnification: x250 when printed at 10 centimetres wide.
Nerve fiber. Transmission electron micrograph (TEM) of unmyelinated fiber consisting in the nucleus of a Schwann's cell at ce...
Nerve fiber. Transmission electron micrograph (TEM) of unmyelinated fiber consisting in the nucleus of a Schwann's cell at center, and two axons at right. Magnification x2000.
NEURON. The synapse is the junction between two neurons, which conducts the nerve impulse action potential. Here, synaptic ve...
NEURON. The synapse is the junction between two neurons, which conducts the nerve impulse action potential. Here, synaptic vesicle in red and mitochondria in blue and pink.
SEROTONIN SYNAPSE. Serotoninergic synapse The nerve impulse is transmitted between two synapses thanks to serotonin garnet ba...
SEROTONIN SYNAPSE. Serotoninergic synapse The nerve impulse is transmitted between two synapses thanks to serotonin garnet balls contained in the vescicles of the presynaptic neuron. In the synaptic cleft, these vesicles release the serotonin, that fixes to the receptors of the synaptic button´s postsynaptic neuron. The presynaptic neuron possess two types of membrane receptors that control the concentration of serotonin in the synaptic cleft : the autoreceptor in pink and the carrier of the ser
DOPAMINE SYNAPSE. Synaptic cleft. At the level of the synaptic cleft, the transmission of the nerve impulse is made thanks to...
DOPAMINE SYNAPSE. Synaptic cleft. At the level of the synaptic cleft, the transmission of the nerve impulse is made thanks to a neurotransmitter in green , released by the exocytosis of the synaptic vesicles of the upstream neuron , example : dopamine that links to a receptor located in the membrane of the downstream neuron in purple , example : dopaminergic receptor. When it becomes fixed to the receptor, the neurotransmitter in green enables the transmission of the nerve impulse. An antagonist
Prion. Creutzfeldt-Jacob Disease Brain humain Vacuole hole in neuron in green Nucleolus neuron nucleus in blue Electronic mic...
Prion. Creutzfeldt-Jacob Disease Brain humain Vacuole hole in neuron in green Nucleolus neuron nucleus in blue Electronic microscope
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