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Structure of a Nephron. urine formation (filtration, reabsorption, secretion, excretion). liquid enters to the glomerulus (in Browmans capsule) goes down by the loop of henle to collecting duct (in the kidneys). Vector diagram for educational, medical, biological and science use. Ilustração

#111129143 - Structure of a Nephron. urine formation (filtration, reabsorption,..

Collagen induction therapy (microneedling) is a surgical for remove wrinkles, scars, stretch, marks, pigmentation. skin needling procedure, repeatedly puncturing the skin with tiny, sterile needles (microneedling the skin).

#102565769 - Collagen induction therapy (microneedling) is a surgical for..

Multiple myeloma, cancer of the bone marrow concept illustration.

#90653592 - Multiple myeloma, cancer of the bone marrow concept illustration.

Vaginitis is an inflammation of the vagina. vaginal infection and causative agents of vulvovaginitis: gardnerella (bacterium), candida (fungal), trichomonas (protozoan parasite). Vaginal discharge.

#90420767 - Vaginitis is an inflammation of the vagina. vaginal infection..

Partial knee replacement. Uni compartmental knee arthroplasty and uni knee implant concept in isolated background

#90270345 - Partial knee replacement. Uni compartmental knee arthroplasty..

Anatomy of the Lysosome: Hydrolytic enzymes, Membrane and transport proteins. This organelle use the enzymes to break down and digest food particles, engulfed viruses or bacteria in the cell. Vector diagram for medical use

#89686802 - Anatomy of the Lysosome: Hydrolytic enzymes, Membrane and transport..

Cellular respiration. vector diagram presentation of the processes of aerobic cellular respiration. Connecting Cellular Respiration and Photosynthesis Ilustração

#89549872 - Cellular respiration. vector diagram presentation of the processes..

Structure of a Nephron. Ilustração

#88395166 - Structure of a Nephron.

Skin care. Clogged and normal pores. Before and after using scrubs, cleansers and moisturizers Ilustração

#87517761 - Skin care. Clogged and normal pores. Before and after using scrubs,..

Foot wart. Many warts on the bottom of soles and toes.

#85278297 - Foot wart. Many warts on the bottom of soles and toes.

cell and free radicals. Healthy cell attacked by free radicals and oxidative stress with cell destruction. vector diagram

#85059995 - cell and free radicals. Healthy cell attacked by free radicals..

Activation of B-cell leukocytes: lymphoblast, activation, B-cell, memory, virus, plasma cell, antibody, antigen, naive lymphocyte

#84931037 - Activation of B-cell leukocytes: lymphoblast, activation, B-cell,..

B-cell and T helper cells. Basic B-cells function: bind an antigen, receive help from a T helper cell, and differentiate into a plasma cell that secretes large amounts of antibodies. Human immune system

#84856801 - B-cell and T helper cells. Basic B-cells function: bind an antigen,..

Activation of T-cell leukocytes. T-cell encounters its cognate antigen on the surface of an infected cell. T cells direct and regulate immune responses and attack infected or cancerous cells. Ilustração

#84800618 - Activation of T-cell leukocytes. T-cell encounters its cognate..

Biomes. Terrestrial ecosystem is a community of living organisms. Biotope: montane, desert, tropics, savanna, steppe, mediterranean, mixed forest, taiga, tundra and polar desert. Vector map Ilustração

#84556951 - Biomes. Terrestrial ecosystem is a community of living organisms...

Healthy foot and foot with Bunion. Human anatomy. Skeleton

#84263855 - Healthy foot and foot with Bunion. Human anatomy. Skeleton

A detailed diagram models of membrane structure Ilustração

#84069874 - A detailed diagram models of membrane structure

Probiotics. gut flora: Good (Lactobacillus, Bifidobacterium longum, Streptococcus thermophilus) and Bad (Streptococcus, Salmonella typhi, Helicobacter pylori) bacteria.

#83405011 - Probiotics. gut flora: Good (Lactobacillus, Bifidobacterium longum,..

Stem cells possibilities. These cells can become any tissue in the body. Internal organs in the background of a male figure and a human cell (gepatocytes, osteocyte, cardiac, enterocytes, neuron). Ilustração

#83390456 - Stem cells possibilities. These cells can become any tissue in..

From ovulation to fertilization. development of a human embryo: ovulation, fertilization, implantation of blastocyst in the uterine wall. anatomy of the female reproductive system. uterus with broad ligament on the white background.

#83231783 - From ovulation to fertilization. development of a human embryo:..

Earths season. Illumination of the earth during various seasons. The Earths movement around the Sun. Top position: vernal equinox. Bottom: autumnal equinox. Left: summer solstice. Right: winter solstice.

#81714848 - Earths season. Illumination of the earth during various seasons...

Human embryonic development. from ovulation to implantation. fetal development Ilustração

#81667351 - Human embryonic development. from ovulation to implantation...

test egg. Egg float. Science Experiments (Eggs dropped in fresh and salt water to show the properties of density.) and Test Eggs for Freshness (The fresh egg will sink but the rotten one will float). Ilustração

#80108673 - test egg. Egg float. Science Experiments (Eggs dropped in fresh..

tilt of the Earths axis. seasons is the result from the Earths axis of rotation being tilted with respect to its orbital plane. the northern and southern hemispheres always experience opposite seasons. One part of the planet is more directly exposed to

#80092287 - tilt of the Earths axis. seasons is the result from the Earths..

Cross-section ofa volcano. eruption scheme on white background. Vector Infographic

#79676480 - Cross-section ofa volcano. eruption scheme on white background...

Artesian water and Groundwater. Schematic of an artesian well. Typical aquifer cross-section. Vector diagram Ilustração

#79443732 - Artesian water and Groundwater. Schematic of an artesian well...

soil layers. Soil Formation and Soil Horizons. Soil is a mixture of plant residue and fine mineral particles, which form layers. Vector diagram Ilustração

#79381703 - soil layers. Soil Formation and Soil Horizons. Soil is a mixture..

Desalination plant. desalt saline water. Vector isometric. infographic element. water treatment plant and related facilities

#79259648 - Desalination plant. desalt saline water. Vector isometric. infographic..

Cell division. Mitosis. Vector scheme Ilustração

#78687894 - Cell division. Mitosis. Vector scheme

meiosis. Cell division and Interphase. In the illustration labeled chiasma, Sister chromatids and homologous chromosomes. vector diagram

#78685723 - meiosis. Cell division and Interphase. In the illustration labeled..

Viral conjunctivitis. Adenoviruses is the cause of viral conjunctivitis

#78266454 - Viral conjunctivitis. Adenoviruses is the cause of viral conjunctivitis

Hyaluronic acid. Hyaluronic acid in skin-care products. Low molecular and High molecular. Difference Ilustração

#78261210 - Hyaluronic acid. Hyaluronic acid in skin-care products. Low molecular..

Bacterial conjunctivitis. Eye with conjunctivitis and bacteria that cause it. Staphylococci

#78193323 - Bacterial conjunctivitis. Eye with conjunctivitis and bacteria..

Conjunctivitis. Healthy eye and pink eye (with inflammation).

#78193319 - Conjunctivitis. Healthy eye and pink eye (with inflammation).

Free radical and Antioxidant. structure of the atom. Antioxidant donates electron to Free radical Ilustração

#78171521 - Free radical and Antioxidant. structure of the atom. Antioxidant..

Liver disease. Healthy, fatty and cirrhosis of the liver. liver cells (hepatocyte). Ilustração

#78023285 - Liver disease. Healthy, fatty and cirrhosis of the liver. liver..

Diagram of an adult human testicles

#77980626 - Diagram of an adult human testicles

Photochromic lens filter out harmful UV

#77920155 - Photochromic lens filter out harmful UV

glycolysis. Warburg effect. Metabolism in the Normal cell and Cancer cell. Tumor cells have higher levels of glycolysis and lactate production

#77841304 - glycolysis. Warburg effect. Metabolism in the Normal cell and..

Exocytosis. Cell transports molecules out of the cell. vesicles are carried to the cell membrane, fuses with membrane, contents are secreted into the extracellular environment. Ilustração

#77744419 - Exocytosis. Cell transports molecules out of the cell. vesicles..

injectable cosmetic filler or Dermal fillers

#76996788 - injectable cosmetic filler or Dermal fillers

Anatomy of an apple flower. Flower Parts. Detailed Diagram with cross section. useful for study botany and science education. Flower and fruit

#75144917 - Anatomy of an apple flower. Flower Parts. Detailed Diagram with..

Anatomy of a bean seed. vector diagram

#75106264 - Anatomy of a bean seed. vector diagram

life cycle of a bean plant. Stages of growing of bean seed. The most common example of life cycle from a seed to adult plant. Plant Development. Useful for study botany and science education

#75006915 - life cycle of a bean plant. Stages of growing of bean seed. The..

life cycle of an apple tree. flower, seeds, fruit, sprout, seed and tree. The most common example of germination from a seed and life cycle of tree. Useful for study botany and science education Ilustração

#75006885 - life cycle of an apple tree. flower, seeds, fruit, sprout, seed..

Anatomy of a grain. cross section. inside the seed. parts of whole grain: endosperm, bran with aleurone layer, germ (radicle, plumule, scutellum) hairs of brush. Ilustração

#74723849 - Anatomy of a grain. cross section. inside the seed. parts of..

Osmosis. Water passing through a semi-permeable membrane into a region of higher sugar concentration.

#74594840 - Osmosis. Water passing through a semi-permeable membrane into..

Friction is a force exerted by a surface.

#74576163 - Friction is a force exerted by a surface.

Friction. simple machines. forces acting upon an objects (wooden box and ball): gravity, normal force, friction and acceleration. Ilustração

#74573589 - Friction. simple machines. forces acting upon an objects (wooden..

stem cells. These inner cell mass from a blastocyst. These stem cells can become any tissue in the body. for example: neuron, chondrocyte, enterocytes, red blood cells, muscle, fat or epithelial cells

#73524099 - stem cells. These inner cell mass from a blastocyst. These stem..

Endometriosis. Schematic drawing of various types of endometriosis disease.

#73192852 - Endometriosis. Schematic drawing of various types of endometriosis..

human brain, in two halves: healthy and Alzheimers disease. Healthy neuron and neuron with amyloid plaques. in comparison

#72363457 - human brain, in two halves: healthy and Alzheimers disease. Healthy..

stages of atherosclerosis. Detailed illustration. Healthy artery and unhealthy arteries. Developing of plaque from fatty streak to Calcification and thrombosis. cardiovascular disease. Human anatomy Ilustração

#71809948 - stages of atherosclerosis. Detailed illustration. Healthy artery..

Normal human cell reborn to cancer cells, and growing to malignant tumor. Human anatomy

#71670057 - Normal human cell reborn to cancer cells, and growing to malignant..

The human brain. Cross section. Healthy and brain with Alzheimers disease (dementia, senility) Ilustração

#71477971 - The human brain. Cross section. Healthy and brain with Alzheimers..

detailed anatomy of the human brain. Illustration showing the medulla, pons, cerebellum, hypothalamus, thalamus, midbrain. Sagittal view of the brain. Isolated on a white background.

#71358063 - detailed anatomy of the human brain. Illustration showing the..

Protect human skin from UVA , UVB rays. without protective cream rays penetrate deep into skin damaging elastin and collagen fibers, skin loses moisture. The sunscreen lotion protected the skin from harmful radiation.

#70264534 - Protect human skin from UVA , UVB rays. without protective cream..

Hair growth. anagen is the growth phase; catagen is the regressing phase; and telogen, the resting or quiescent phase. Vector diagram Ilustração

#70093505 - Hair growth. anagen is the growth phase; catagen is the regressing..

light therapy, Phototherapy or laser therapy. Electromagnetic spectrum with colors of the various wavelengths in the human skin. Different light spectrums would penetrate the skin to different depths. Depth of penetration by wave light Ilustração

#69725355 - light therapy, Phototherapy or laser therapy. Electromagnetic..

Ingrown hair after hair removal and shaving. buried hair. structure of the hair follicle Ilustração

#69542256 - Ingrown hair after hair removal and shaving. buried hair. structure..

Three stages of the acne formation in the human skin. The sebum in the clogged pore promotes the growth of a bacteria Propionibacterium Acnes. This leads to the redness and inflammation, that associated with pimples. For clinics and Schools Ilustração

#69366932 - Three stages of the acne formation in the human skin. The sebum..

Human skin changes or ageing skin. A diagram of younger and older skin showing the decrease in collagen fibers, atrophy and broken elastin, formed wrinkles, hair becomes gray in the elderly.

#69356811 - Human skin changes or ageing skin. A diagram of younger and older..

Hyaluronic Acid in the human Body. Ilustração

#69252664 - Hyaluronic Acid in the human Body.

Tanning process. When ultraviolet light waves touch melanocytes, they begin to increase the production of melanin. The skin becomes dark color

#68919400 - Tanning process. When ultraviolet light waves touch melanocytes,..

UV protection by the ozone layer. UV-C is entirely screened out, UV-B radiation is partially absorbed, UV-A are not strongly absorbed by the ozone layer and most of this radiation reaches the surface the Earth.

#68257490 - UV protection by the ozone layer. UV-C is entirely screened out,..

Cytokines are produced by macrophages, lymphocytes, mast cells, endothelial cells and fibroblasts. Cytokines include chemokines, interferons, interleukins, lymphokines, and tumour necrosis factors, but not hormones or growth factors

#68230044 - Cytokines are produced by macrophages, lymphocytes, mast cells,..

injectable cosmetic filler. How it works. Procedure. Before and after injection.

#68211960 - injectable cosmetic filler. How it works. Procedure. Before and..

Hyaluronic acid. Hyaluronic acid in skin-care products.

#68199460 - Hyaluronic acid. Hyaluronic acid in skin-care products.

ATP. Structural chemical formula and model of adenosine triphosphate Ilustração

#68039320 - ATP. Structural chemical formula and model of adenosine triphosphate

wound healing process with help surgical suture. Series of stitches made to secure apposition of the edges of a surgical or traumatic wound

#67754491 - wound healing process with help surgical suture. Series of stitches..

Earths atmosphere. with Ozone layer. Structure of the atmosphere: Exosphere; Thermosphere; Mesosphere; Stratosphere, Troposphere.

#67068783 - Earths atmosphere. with Ozone layer. Structure of the atmosphere:..

Natural greenhouse effect and human enhanced greenhouse effect. global warming. Earth, planets atmosphere and solar radiation Ilustração

#67008336 - Natural greenhouse effect and human enhanced greenhouse effect...

Greenhouse effect. diagram showing how the greenhouse effect works. global warming Ilustração

#66662245 - Greenhouse effect. diagram showing how the greenhouse effect..

Phagocytosis. Human immune system Ilustração

#64857493 - Phagocytosis. Human immune system

Anatomy of the hip. Human femur and pelvis

#64857490 - Anatomy of the hip. Human femur and pelvis

Anions and cations for example sodium and chlorine atoms. positive ion - atom that has one of its normal encircling electrons removed. An atom with an extra electron added is called a negative ion. Ilustração

#63923779 - Anions and cations for example sodium and chlorine atoms. positive..

Respiration or Breathing. Gas exchange in humans. Path of Red Blood Cells. Oxygen and carbon dioxide are transported in the blood: from the lungs to the organs and again to the lungs.

#63923774 - Respiration or Breathing. Gas exchange in humans. Path of Red..

Differentiation of monocytes. Osteoclast, Macrophage and Dendric cell

#63923767 - Differentiation of monocytes. Osteoclast, Macrophage and Dendric..

Structure of a typical animal cell. isolated on white background

#63923760 - Structure of a typical animal cell. isolated on white background

blood sugar level or glucose level. Normal level, Hyperglycemia and Hypoglycemia. test-tube with blood

#63923738 - blood sugar level or glucose level. Normal level, Hyperglycemia..

Facilitated diffusion or facilitated transport or passive-mediated transport. Carrier protein

#63923732 - Facilitated diffusion or facilitated transport or passive-mediated..

sodium-potassium pump or sodium-potassium adenosine triphosphatase. After binding ATP, the pump binds 3 ions sodium. ATP is hydrolyzed. the ions go to the outside. then The pump binds 2 extracellular ions potassium and transporting the ions into the cell. Ilustração

#63923729 - sodium-potassium pump or sodium-potassium adenosine triphosphatase...

Schematic depiction of water molecule movement through of the aquaporin channel. Ilustração

#63923720 - Schematic depiction of water molecule movement through of the..

stem cell application. Using stem cells to treat disease Ilustração

#63923714 - stem cell application. Using stem cells to treat disease

Lever. simple machines. Archimedes. lever is a machine consisting of a beam or rigid rod pivoted at a fixed hinge or fulcrum. Lever, one of the six simple machines identified by Renaissance scientists. Ilustração

#63923673 - Lever. simple machines. Archimedes. lever is a machine consisting..

Isotopes of hydrogen: protium, deuterium and tritium. Diagram Comparing Hydrogen Atoms Ilustração

#63923666 - Isotopes of hydrogen: protium, deuterium and tritium. Diagram..

Electromagnetic Spectrum. The spectrum of waves includes infrared rays, visible light, ultraviolet rays, and X-rays. Human eyes are only sensitive to the range that is between wavelength 780 nanometers and 380 nanometers in length. Ilustração

#63923662 - Electromagnetic Spectrum. The spectrum of waves includes infrared..

The three fundamental states of matter. The molecules of solid, gas and liquid in glass

#63923658 - The three fundamental states of matter. The molecules of solid,..

Electromagnetic spectrum. different types of electromagnetic radiation by their wavelengths. In order of increasing frequency and decreasing wavelength Ilustração

#63923646 - Electromagnetic spectrum. different types of electromagnetic..

states of matter. phase or state of matter and phase transition. This diagram shows the different phase transitions for example water

#63923636 - states of matter. phase or state of matter and phase transition...

A tsunami is a series of huge waves. It washes against the coast several times with great speed and force. Tsunamis generated by submarine earthquakes travel at subsonic speed across the ocean surface.

#63923635 - A tsunami is a series of huge waves. It washes against the coast..

Plate movement. A cross section illustrating the main types of tectonic plate boundaries. convergent, divergent, and transform

#63923634 - Plate movement. A cross section illustrating the main types of..

Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids. Ilustração

#63923633 - Acid rain is caused by emissions of sulfur dioxide and nitrogen..

Continental drift on the planet Earth. Before (Pangaea - 200 million years ago) and after (modern continents)

#63923609 - Continental drift on the planet Earth. Before (Pangaea - 200..

Ion channel. structure of the channel. Vector diagram.

#63903570 - Ion channel. structure of the channel. Vector diagram.

carbon cycle. The carbon path from the atmosphere, into living organisms, then turning into dead organic matter, and back into the atmosphere.

#63133912 - carbon cycle. The carbon path from the atmosphere, into living..

#62837429 - Soil Profile and Soil horizons. Piece of land with green grass..

Oil extraction. Conventional drilling. Earth layers.

#62818977 - Oil extraction. Conventional drilling. Earth layers.

soil layers and aquifer. Ilustração

#62671522 - soil layers and aquifer.

Taste receptors of the tongue. Are present in the taste buds of papillae. Taste buds are sensitive to the five major groups of tastes (sweet, salty, sour, bitter, and umami)

#60675779 - Taste receptors of the tongue. Are present in the taste buds..

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Sobre o 123RF

Quem somos

Seções

Blog

Tutoriais

Serviços

Corporate+

123RF Partners Program

Programa de Revenda com Valor Agregado (VAR)

Seja um Afiliado

Políticas

Legal

Licenças

Notificações de Privacidade

Termos de Uso

POLÍTICA DE COOKIE

Internacional

Русский язык

Português (PT)

Ajuda

Precisa de ajuda? Entre em contato com nosso atendimento

@ 1 866 655 3733

Contato

Central De Ajuda

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Follow us on Twitter

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