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Digestive system with the gallbladder at the back of the liver. Stock Photo

RF2JKWT54–Digestive system with the gallbladder at the back of the liver.

Representation of an aquarium isolated on a white background. Stock Photo

RF2JKWT21–Representation of an aquarium isolated on a white background.

RF2JKWT0A–Representation of an aquarium isolated on a white background.

When analyzing brain cells, a computer program Stock Photo

RM2JKFTN0–When analyzing brain cells, a computer program

In this image: SARS-CoV-2 (pink) and ACE2 receptor (white) RNA were found in salivary gland cells, which are outlined in green. Stock Photo

RM2JKFTMP–In this image: SARS-CoV-2 (pink) and ACE2 receptor (white) RNA were found in salivary gland cells, which are outlined in green.

A parvalbumin (green) containing an interneuron is stained for the glutamate receptor subunit GluA4 (red). Stock Photo

RM2JKFTCX–A parvalbumin (green) containing an interneuron is stained for the glutamate receptor subunit GluA4 (red).

This image integrates the thousands of known molecular and genetic interactions that occur inside our bodies using a computer program called Cytoscape. Images like this are known as network wiring diagrams, but Cytoscape creator Trey Ideker jokingly calls them quothairballs and quot because they can be so convoluted, complex, and difficult to unravel. Cytoscape comes with tools to help scientists assess specific interactions, such as differences between species or between diseased and diseased cells. Stock Photo

RM2JKFTD7–This image integrates the thousands of known molecular and genetic interactions that occur inside our bodies using a computer program called Cytoscape. Images like this are known as network wiring diagrams, but Cytoscape creator Trey Ideker jokingly calls them quothairballs and quot because they can be so convoluted, complex, and difficult to unravel. Cytoscape comes with tools to help scientists assess specific interactions, such as differences between species or between diseased and diseased cells.

Comparison of the size of Mimivirus with bacteria and virus. Stock Photo

RF2JKWND6–Comparison of the size of Mimivirus with bacteria and virus.

Eye, surgery, photokeractectomy step 4: the cornea is reshaped using the Excimer laser. Stock Photo

RF2JKWT6P–Eye, surgery, photokeractectomy step 4: the cornea is reshaped using the Excimer laser.

Bronchiolitis epidemic in a hospital pediatric ward. Stock Photo

RM2JKFT0F–Bronchiolitis epidemic in a hospital pediatric ward.

Inferior view of the human skull with the upper jaw. Stock Photo

RF2JKWR41–Inferior view of the human skull with the upper jaw.

Brain (right and left cerebral hemispheres) in a woman's face. Stock Photo

RF2JKWR4D–Brain (right and left cerebral hemispheres) in a woman's face.

Pediatric resuscitation simulation workshop at the Nimes Faculty of Medicine. Stock Photo

RM2JKFNJ2–Pediatric resuscitation simulation workshop at the Nimes Faculty of Medicine.

RM2JKFPP5–Pediatric resuscitation simulation workshop at the Nimes Faculty of Medicine.

This transmission electron microscope image shows SARS-CoV-2 also known as 2019-nCoV, the virus that causes COVID-19. Virus particles emerge from the surface of a cell cultured in the laboratory. Spikes on the outer edge of virus particles give coronaviruses their name, shaped like a crown. Image captured and colorized at Rocky Mountain Laboratories in Hamilton, Montana. Credit: NIAID Stock Photo

RM2JKFT6T–This transmission electron microscope image shows SARS-CoV-2 also known as 2019-nCoV, the virus that causes COVID-19. Virus particles emerge from the surface of a cell cultured in the laboratory. Spikes on the outer edge of virus particles give coronaviruses their name, shaped like a crown. Image captured and colorized at Rocky Mountain Laboratories in Hamilton, Montana. Credit: NIAID

Cross-section of the epidermis of a dark phototype skin with many grains of melanin. Stock Photo

RF2JKWT0G–Cross-section of the epidermis of a dark phototype skin with many grains of melanin.

Anatomy of the respiratory system of a hen with lungs and air sacs. Stock Photo

RF2JKWMHB–Anatomy of the respiratory system of a hen with lungs and air sacs.

Lungs formed by an upper and lower lobe separated by a fissure. Stock Photo

RF2JKWMRD–Lungs formed by an upper and lower lobe separated by a fissure.

Students and their teacher during an echography simulation workshop on a robot mannequin. Stock Photo

RM2JKFR2X–Students and their teacher during an echography simulation workshop on a robot mannequin.

RM2JKFPN0–Pediatric resuscitation simulation workshop at the Nimes Faculty of Medicine.

Healthy ankle and ankle with hemophilic arthropathy in frontal cut. Stock Photo

RF2JKWP0P–Healthy ankle and ankle with hemophilic arthropathy in frontal cut.

Bacteriophage consisting of a protein envelope, containing its nucleic acid, and a tail. Stock Photo

RF2JKWMG8–Bacteriophage consisting of a protein envelope, containing its nucleic acid, and a tail.

Median sagittal section of the brain with cerebellum and beginning of the brainstem. Stock Photo

RF2JKWR79–Median sagittal section of the brain with cerebellum and beginning of the brainstem.

Jellyfish are particularly good models for studying the evolution of embryonic tissue layers. Although they are primitive, jellyfish have a nervous system (colored in green here) and a musculature (red). Cell nuclei are stained blue. By studying the distribution of tissues in this simple organism, scientists can learn about the evolution of shapes and characteristics of various animals. Stock Photo

RM2JKFTE7–Jellyfish are particularly good models for studying the evolution of embryonic tissue layers. Although they are primitive, jellyfish have a nervous system (colored in green here) and a musculature (red). Cell nuclei are stained blue. By studying the distribution of tissues in this simple organism, scientists can learn about the evolution of shapes and characteristics of various animals.

RM2JKFNE9–Pediatric resuscitation simulation workshop at the Nimes Faculty of Medicine.

In this image of a genetically modified mouse model, lung cancer caused by the oncogene Kras is shown in purple. As a key driver of many types of cancer, the Kras gene is a promising target for new cancer therapies. Stock Photo

RM2JKFTDE–In this image of a genetically modified mouse model, lung cancer caused by the oncogene Kras is shown in purple. As a key driver of many types of cancer, the Kras gene is a promising target for new cancer therapies.

Colorized scanning electron micrograph of a natural killer cell from a human donor. Stock Photo

RM2JKFTBK–Colorized scanning electron micrograph of a natural killer cell from a human donor.

Skin epidermis from the basal layer to the stratum corneum. Stock Photo

RF2JKWPH0–Skin epidermis from the basal layer to the stratum corneum.

Childbirth, step 3: release of the upper shoulder by the midwife. Stock Photo

RF2JKWT3E–Childbirth, step 3: release of the upper shoulder by the midwife.

RM2JKFT04–Bronchiolitis epidemic in a hospital pediatric ward.

First stage tooth decay (enamel damage). Stock Photo

RF2JKWMT7–First stage tooth decay (enamel damage).

Scanning electron micrograph of Ebola virus particles (green) budding and attached to the surface of infected VERO E6 cells (orange). Focused image at the NIAID Integrated Research Center in Fort Detrick, Maryland. Credit: NIAID Stock Photo

RM2JKFT4G–Scanning electron micrograph of Ebola virus particles (green) budding and attached to the surface of infected VERO E6 cells (orange). Focused image at the NIAID Integrated Research Center in Fort Detrick, Maryland. Credit: NIAID

Anatomy of the breast and the principle of lactation with a zoom on a lobule and an acinus in section. Stock Photo

RF2JKWR7N–Anatomy of the breast and the principle of lactation with a zoom on a lobule and an acinus in section.

Single-cell RNA sequencing helped scientists map the development of sensory (pink) hair cells in the cochlea of a newborn mouse. Stock Photo

RM2JKFTEP–Single-cell RNA sequencing helped scientists map the development of sensory (pink) hair cells in the cochlea of a newborn mouse.

Third stage tooth decay (involvement of the dental pulp). Stock Photo

RF2JKWMW7–Third stage tooth decay (involvement of the dental pulp).

Contraction of microtubules. Top, microtubules (blue) in a resting cardiac muscle cell. Bottom, contracted microtubules (blue) in a moving cardiac muscle cell. Stock Photo

RM2JKFT6B–Contraction of microtubules. Top, microtubules (blue) in a resting cardiac muscle cell. Bottom, contracted microtubules (blue) in a moving cardiac muscle cell.

The researchers used the gene-editing tool CRISPR to rapidly search the entire human genome for genetic suspects behind inherited versions of ALS and FTD. Stock Photo

RM2JKFTD1–The researchers used the gene-editing tool CRISPR to rapidly search the entire human genome for genetic suspects behind inherited versions of ALS and FTD.

Treatment of birth deafness with bilateral cochlear implants, a sound engineer gives him a hearing test to adjust them. Stock Photo

RF2JKWK3B–Treatment of birth deafness with bilateral cochlear implants, a sound engineer gives him a hearing test to adjust them.

Eye, cataract, phacoemulsification - step 1: making the self-sealing incision. Stock Photo

RF2JKWTEM–Eye, cataract, phacoemulsification - step 1: making the self-sealing incision.

Inner ear and vestibular apparatus with semicircular canals, macule. Stock Photo

RF2JKWTJ1–Inner ear and vestibular apparatus with semicircular canals, macule.

Rutherford's experiment showing the existence of a nucleus in the atom. Stock Photo

RF2JKWRW6–Rutherford's experiment showing the existence of a nucleus in the atom.

Langat virus infection (bright green) in the tick's midgut (black) is shown six days post-infection in this fluorescence image. Stock Photo

RM2JKFTEA–Langat virus infection (bright green) in the tick's midgut (black) is shown six days post-infection in this fluorescence image.

Preparation of a piroxicam anti-inflammatory intramuscular injection to treat sciatica. Stock Photo

RM2JKFRB1–Preparation of a piroxicam anti-inflammatory intramuscular injection to treat sciatica.

Bone system: silhouette of a 70-year-old woman with severe osteoporosis. Stock Photo

RF2JKWMX2–Bone system: silhouette of a 70-year-old woman with severe osteoporosis.

Harvesting honey from a beekeeper in France. Stock Photo

RF2JKWMEK–Harvesting honey from a beekeeper in France.

Leaves and fruits (disamares) of the sycamore maple (Acer pseudoplatanus). Stock Photo

RF2JKWRF6–Leaves and fruits (disamares) of the sycamore maple (Acer pseudoplatanus).

View of the synchrotron or circular particle accelerator of a hadrontherapy center for cancer treatment. Stock Photo

RF2JKWKXJ–View of the synchrotron or circular particle accelerator of a hadrontherapy center for cancer treatment.

Wall of an artery made up of three tunics, each of which has one or more layers of tissue. Stock Photo

RF2JKWR08–Wall of an artery made up of three tunics, each of which has one or more layers of tissue.

Drawing of a sagittal section of teeth and its roots. Stock Photo

RF2JKWPGJ–Drawing of a sagittal section of teeth and its roots.

Private nurse performs a complete toilet in the home of an 86-year-old patient. Stock Photo

RM2JKFRFJ–Private nurse performs a complete toilet in the home of an 86-year-old patient.

RM2JKFNJJ–Faculty of Medicine Nimes

Breast anatomy (dark skin) with nipple, mammillary muscle. Stock Photo

RF2JKWT18–Breast anatomy (dark skin) with nipple, mammillary muscle.

RM2JKFNJ7–Pediatric resuscitation simulation workshop at the Nimes Faculty of Medicine.

Seniors sitting in chairs or wheelchairs attending a music concert in a retirement home. Stock Photo

RM2JKFPMG–Seniors sitting in chairs or wheelchairs attending a music concert in a retirement home.

Scanning electron microscopy image illustrates tiny extracellular links between stereocilia of an inner ear hair cell. One type of link, the tip link, rests the top of the shorter stereocilia to the side of a longer stereocilia and is crucial for hearing. The yellow dots in the inset are the immuno-OR particles that label specific proteins comprising the spike binding. Stock Photo

RM2JKFTNE–Scanning electron microscopy image illustrates tiny extracellular links between stereocilia of an inner ear hair cell. One type of link, the tip link, rests the top of the shorter stereocilia to the side of a longer stereocilia and is crucial for hearing. The yellow dots in the inset are the immuno-OR particles that label specific proteins comprising the spike binding.

Schematic of any virus with DNA strands inside. Stock Photo

RF2JKWN7Y–Schematic of any virus with DNA strands inside.

Structure of a bacterium: plasmids, ribosomes, DNA, flagella. Stock Photo

RF2JKWN6T–Structure of a bacterium: plasmids, ribosomes, DNA, flagella.

Virophages infecting mama viruses (very large viruses). Stock Photo

RF2JKWNAC–Virophages infecting mama viruses (very large viruses).

Fundus of a patient with macular edema. Stock Photo

RF2JKWMD3–Fundus of a patient with macular edema.

First step in the functioning of the brain when you fall in love. The thalamus sends information to the hippocampus, which allows it to cross-reference with memories already lived, it is the same mechanism as during a stress. Stock Photo

RF2JKWPH1–First step in the functioning of the brain when you fall in love. The thalamus sends information to the hippocampus, which allows it to cross-reference with memories already lived, it is the same mechanism as during a stress.

RF2JKWMF2–Harvesting honey from a beekeeper in France.

Interfering RNA, step 6: the RISC complex detaches from the target RNA molecule it has just cleaved. Stock Photo

RF2JKWR37–Interfering RNA, step 6: the RISC complex detaches from the target RNA molecule it has just cleaved.

Pancreas placed in a male silhouette. Stock Photo

RF2JKWN3H–Pancreas placed in a male silhouette.

RM2JKFPP1–Pediatric resuscitation simulation workshop at the Nimes Faculty of Medicine.

RM2JKFNJ4–Pediatric resuscitation simulation workshop at the Nimes Faculty of Medicine.

Basal plant cell with outer wall, nucleus, chloroplasts, central vacuole. Stock Photo

RF2JKWPM3–Basal plant cell with outer wall, nucleus, chloroplasts, central vacuole.

RF2JKWK3D–Treatment of birth deafness with bilateral cochlear implants, a sound engineer gives him a hearing test to adjust them.

Normal eye with iridocorneal angle showing retina, lens. Stock Photo

RF2JKWT7E–Normal eye with iridocorneal angle showing retina, lens.

Anatomy of the colon: the cecum and the appendix. Stock Photo

RF2JKWMYP–Anatomy of the colon: the cecum and the appendix.

Eye: placement of an intraocular implant for treatment of cataracts. Stock Photo

RF2JKWTEN–Eye: placement of an intraocular implant for treatment of cataracts.

RM2JKFTCD–Colorized scanning electron micrograph of a natural killer cell from a human donor.

Anesthesiologist students during a critical situation resuscitation exercise at the Nimes Faculty of Medicine. Students train on a Sim Man 3 G robotic dummy. Stock Photo

RM2JKFR4K–Anesthesiologist students during a critical situation resuscitation exercise at the Nimes Faculty of Medicine. Students train on a Sim Man 3 G robotic dummy.

Reproductive system of a senior woman after menopause. Stock Photo

RF2JKWN14–Reproductive system of a senior woman after menopause.

Schematization of the universe resulting from nothing. Stock Photo

RF2JKWT3X–Schematization of the universe resulting from nothing.

Comparison between a healthy ankle and hemophilic arthropathy (hemarthrosis). Stock Photo

RF2JKWPAJ–Comparison between a healthy ankle and hemophilic arthropathy (hemarthrosis).

Saphenous vein valve incontinence. Stock Photo

RF2JKWN84–Saphenous vein valve incontinence.

Penetration and replication of the H1N1 virus through a host cell. Stock Photo

RF2JKWNWG–Penetration and replication of the H1N1 virus through a host cell.

A private nurse prepares a pill box at a patient's home. Stock Photo

RM2JKFRAN–A private nurse prepares a pill box at a patient's home.

Comparison of regions infected with human and avian influenza virus. Stock Photo

RF2JKWNW8–Comparison of regions infected with human and avian influenza virus.

The eye and retina with the vitreous, the internal limiting membrane. Stock Photo

RF2JKWMJR–The eye and retina with the vitreous, the internal limiting membrane.

Diagram of the sugar cycle in a child's silhouette. Stock Photo

RF2JKWT0N–Diagram of the sugar cycle in a child's silhouette.

Biobank: isolation of stem cells from umbilical cord blood, with automatic devices for separating blood components. Stock Photo

RF2JKWKWR–Biobank: isolation of stem cells from umbilical cord blood, with automatic devices for separating blood components.

Inner ear and zoom on the macule (organ of static balance). Stock Photo

RF2JKWTKW–Inner ear and zoom on the macule (organ of static balance).

Biobank storing stem cells from blood and cord tissue. Stock Photo

RF2JKWKWC–Biobank storing stem cells from blood and cord tissue.

Anatomy of the airways: trachea and lungs with bronchi. Stock Photo

RF2JKWPK4–Anatomy of the airways: trachea and lungs with bronchi.

Bronchiolitis epidemic in pediatrics, mother and son in hospital. Stock Photo

RM2JKFRR2–Bronchiolitis epidemic in pediatrics, mother and son in hospital.

Amino acid not synthesized by the ribosome route of which only the one on the left can be synthesized by ribosomes. This is why the synthesis of antibiotics is so complex. Stock Photo

RF2JKWPGK–Amino acid not synthesized by the ribosome route of which only the one on the left can be synthesized by ribosomes. This is why the synthesis of antibiotics is so complex.

Transmission electron micrograph of Ebola virus nucleocapsids (small orange circles) and virus particles (larger orange filamentous shapes) in infected African green monkey kidney cells. Focused image at the NIAID Integrated Research Center in Fort Detrick, Maryland. Stock Photo

RM2JKFT3W–Transmission electron micrograph of Ebola virus nucleocapsids (small orange circles) and virus particles (larger orange filamentous shapes) in infected African green monkey kidney cells. Focused image at the NIAID Integrated Research Center in Fort Detrick, Maryland.