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Cross section digital illustration of spinal nerve fibres and convey motor signals highlighted in pink and green





MESOTHERAPY. MESOTHERAPY Photo essay from doctor´s office in Fismes France. Mesotherapy at the level of the carpal tunnel.





Illustration of the areas of the brain that are active while taking a written test. The reading area (light blue area) is act...
Illustration of the areas of the brain that are active while taking a written test. The reading area (light blue area) is activated and the prefrontal cortex (small red area) activates the working memory, reasoning and language. The temporal lobe (green area) activates short-term memory. The visual cortex (pink area) is activated to a greater or lesser extent depending on the test and the motor cortex (orange area) activates the hand.





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





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





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).





MAGNETIC CORTICAL STIMULATION. Photo essay from hospital. In Cortical Magnetic Stimulation CxMS, a magnetic field is sent to ...
MAGNETIC CORTICAL STIMULATION. Photo essay from hospital. In Cortical Magnetic Stimulation CxMS, a magnetic field is sent to the brain via a pad. On a clinical level, this therapy is indicated for depression, while research into the technique has concentrated on neurologic





Woman taking off her clothes. You can only see her legs. Behind a mirror. In it you can see a cat and unfocussed another pers...
Woman taking off her clothes. You can only see her legs. Behind a mirror. In it you can see a cat and unfocussed another person.





ELBOW, X-RAY. ELBOW, X-RAY The elbow is the articular region forming the joint between the upper arm and the forearm. The elb...
ELBOW, X-RAY. ELBOW, X-RAY The elbow is the articular region forming the joint between the upper arm and the forearm. The elbow joint is composed of three bony articulations: the humeroradial, humeroulnar and radioulnar joints. In the anterior region of the elbow joint, the biceps is situated in the antecubital fossa. The olecranon, the upper extremity of the ulna, forms the posterior aspect of the elbow joint over which passes the medial nerve. Colorized x-ray.





People gathering outside a white church with a steeple predominantly two women in the foreground wearing hats





CARPAL TUNNEL, SURGERY. Photo essay from clinic. Jeanne d´Arc clinic, in Nantes, France. Surgery of the carpal tunnel.





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





ANATOMY, EYE. Anatomic model of the human right eye three_quarter view. The eye, lying on the orbital fat in yellow, is enclo...
ANATOMY, EYE. Anatomic model of the human right eye three_quarter view. The eye, lying on the orbital fat in yellow, is enclosed in the orbit. This cavity is delimited mainly by the frontal orbital apex and side wall, sphenoid behind, zygomatic medial wall, t





BRAIN, SCAN. Photo essay from hospital. Scanner cut_away view of a human brain showing the eyeballs and the optic nerves. Nor...
BRAIN, SCAN. Photo essay from hospital. Scanner cut_away view of a human brain showing the eyeballs and the optic nerves. Normal aspect.





INTERNAL EAR, DRAWING. The ear is the organ enabling audition and balance. The inner ear analyses sounds and transmits the in...
INTERNAL EAR, DRAWING. The ear is the organ enabling audition and balance. The inner ear analyses sounds and transmits the information to the brain by way of the auditory nerve. It comprises the vestibule, the semicircular canals and the cochlea. The outer ear is made up of the





OPTIC NERVE SCHWANNOMA, MRI. Intracranial benign tumor, neurinoma in the right temporal lobe, near the optic nerve. Transvers...
OPTIC NERVE SCHWANNOMA, MRI. Intracranial benign tumor, neurinoma in the right temporal lobe, near the optic nerve. Transversal MRI of the skull.





Facial and auditory nerves. Handcolored steel engraving by Davesne of a drawing by Leveille from Dr. Joseph Nicolas Masse's "...
Facial and auditory nerves. Handcolored steel engraving by Davesne of a drawing by Leveille from Dr. Joseph Nicolas Masse's "Petit Atlas complet d'Anatomie descriptive du Corps Humain," Paris, 1864, published by Mequignon-Marvis. Masse's "Pocket Anatomy of the Human Body" was first published in 1848 and went through many editions.





ANATOMY, TOOTH. Anatomic model of an human upper molar in frontal section. The upper molar, located in the back of the jaw, c...
ANATOMY, TOOTH. Anatomic model of an human upper molar in frontal section. The upper molar, located in the back of the jaw, chews and grinds food, it has for that four cusps. It is inserted in the gum by three roots. A tooth is outwardly composed of two parts: the cr





Chronicle pain treatment by implantation of medullary neurostimulation electrods. The patient manages the delivery of low int...
Chronicle pain treatment by implantation of medullary neurostimulation electrods. The patient manages the delivery of low intensity electric current with external control box by electrods implanted into the spinal cord. Pain treatment center, Lariboisière Hospital, Paris, France.





TREATMENT FOR EPILEPSY, DRAWING. Treatement of epilepsy by vagus nerve stimulation. A small case neurostimulateur NCP, Neuroc...
TREATMENT FOR EPILEPSY, DRAWING. Treatement of epilepsy by vagus nerve stimulation. A small case neurostimulateur NCP, Neurocybernetic prosthesis, type pacemaker, is implanted under the left clavicle. It is linked to electrodes rolled up around the vagus nerve, at the level of the nec





NEURINOMA, X_RAY. Neuronima, developped on the sheath of an intercostal nerve. Thoracic x_ray in front view.





Female palm and wrist, anterior view, xray skin, detailed anatomy, full color on black background





A rear view of a stylized female figure with a wire frame appearance with nerves and brain present.





EYE, DRAWING. EYE, DRAWING The eye. Anatomy of the right eye : horizontal cutaway_view showing the main structures of the eye...
EYE, DRAWING. EYE, DRAWING The eye. Anatomy of the right eye : horizontal cutaway_view showing the main structures of the eye, including the retina and its vascularization, the lens, the vitreous body, the retina, the optic nerve, the choroid, the sclera. The yellow arrows represent the light that penetrate into the eye.





LUMBAR VERTEBRA DRAW. Lumbar spinal nerves. Representation of the lumbar spinal nerves exiting from the lumbar vertebrae by t...
LUMBAR VERTEBRA DRAW. Lumbar spinal nerves. Representation of the lumbar spinal nerves exiting from the lumbar vertebrae by the conjugation hole and giving an anterior branch passing before the transverse processes of the lumbar vertebrae and that innervates the muscles and the structures of the members and lateral and ventral parts of the trunk, and a posterior branch passing behind the transverse process and that innervates the deep muscles and the skin of the back. These anterior branches for





ANATOMY OF THE BRAIN. Anatomy of the brain. The right hemisphere light grey, the caudate nucleus, putamen and globus pallidus...
ANATOMY OF THE BRAIN. Anatomy of the brain. The right hemisphere light grey, the caudate nucleus, putamen and globus pallidus yellow, the thalamus light blue, the amygdala pink, the hippocampus purple, the hypothalamus dark blue, the lateral ventricles grey blue, the olfactory bulbs light green, the fornix green, the cingulate cortex blue, the optical nerves orange.





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





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.





BRAIN, SCAN. BRAIN, SCAN The brain is divided into two hemispheres bridged by a mass of nerve fibers, the corpus callosum. Th...
BRAIN, SCAN. BRAIN, SCAN The brain is divided into two hemispheres bridged by a mass of nerve fibers, the corpus callosum. The brain as a whole (encephalon) is composed of these areas along with the brain stem (the prolongation of the spinal cord), and the cerebellum (a sort of branch circuit located in the posterior region of the skull). Deep grooves separate the brain into lobes designated by the names of the overlying skull bones: frontal, parietal, temporal, occipital. Seen here, a normal





REFLEXOTHERAPY, DRAWING. REFLEXOTHERAPY, DRAWING 1 : heart, 2 : brain, 3 : sinuses, 4 : ear, 5 : eye, 6 : epiphysis, 7 : pitu...
REFLEXOTHERAPY, DRAWING. REFLEXOTHERAPY, DRAWING 1 : heart, 2 : brain, 3 : sinuses, 4 : ear, 5 : eye, 6 : epiphysis, 7 : pituitary gland, 8 : nose, 9 : lungs, 10 : liver, 11 : gall bladder, 12 : solar plexus, 13 : spleen, 14 : thymus, 15 : thyroid, 16 : small and large intestines, 17 : bladder, 18 : sciatic nerve, 19 : uterus/prostate, 20 : ovaries/testicles, 21 : anus/hemorrhoids, 22 : spinal column, region from wrist to thumb: coccyx, sacrum, lumbar, dorsal and cervical vertebrae, 23 : li





PHOTOTRANSDUCTION. Functionning of a photoreceptor in night vision. Phototransduction transformation of luminous energy into ...
PHOTOTRANSDUCTION. Functionning of a photoreceptor in night vision. Phototransduction transformation of luminous energy into nerve impulse occurs in the external segment of photoreceptors cones and rods. In the darkness, the voltage_dependent sodium channels in viole

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