Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
Backgrounds of Bacteria and Mold under the microscope in Lab.
Male athlete reads label on prescription, medication bottle. He holds his neck to show headache or neck pain.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Hose valve and gasket for water purifier
Microscopic close view of high vaginal swab Gram stain smear, 100x. diagnosis of Bacterial vaginosis (BV).
Photomicrograph of rotifer, probably Rotaria rotatoria. Rapidly rotating cilia at top of head, internal organs visible. Green circles are algae. Live specimen. Original image at 40X, wet mount, transmitted brightfield illumination. Indistinct image due to motion blur of live specimen and very shallow depth of field of brightfield illumination.
Catheter is not currently connected to any medication
Lily leaf c.s. under microscope
Close up of dry lip of a young men ,
Cropped shot with selective focus on  sterilized dental equipment used for teeth cleaning arranged on a tray in a dental office while in the background an unrecognizable dentist works on a patient.
Adipose tissue under the microscope view show contains large lipid droplet.
Liver Fluke Section under light microscope with white background
False color image of diatom under the microscope
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
prostate cancer, prostatic hyperplasia, Structure of male prostate, cross section, 3d illustration
Blastomycosis is a fungal infection caused by inhaling Blastomyces dermatitidis spores. If it involves only the lungs, it is called pulmonary blastomycosis. Only about half of people with the disease have symptoms, which can include fever, cough, night sweats, muscle pains, weight loss, chest pain, and feeling tired.
Teenage woman with acne on her face.
Photomicrograph of one celled amoeba. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
TNF-alfa (blue) is the most potent proinflammatory cytokine and is crucial in the pathogenesis of PsA. TNF-  inhibitors considerably relieve symptons in patients. A therapeutic antibody (adalimumab) blocks the receptor binding site of  TNF-.
Freshness capsule
abstract background with bokeh lights
Threadworm (Enterobius vermicularis) eggs containing worm larvae, computer illustration. Threadworms are nematode worms that parasitize the large intestine and caecum of many animals. In humans they cause the common infection enterobiasis. Nematodes are unsegmented worms that may be parasitic or free-living depending upon the species.
Beautiful young woman in beauty salon on lip makeup treatment. Beautician doing lips tattooing.
Close-up of stains on the back of teeth
A doctor  holding and examining a detailed anatomical model of the human large intestine
Bone marrow plasma cells .Plasma cell neoplasms are diseases in which the body makes too many plasma cells. Plasma cell neoplasms can be benign or malignant. Diagnosed with Immunostain CD138 positive.
bright, sterile hospital airway with medical equipment and beds, symbolizing healthcare, treatment, and healing
An ECG test chart with pills and a stethoscope
Free Images: "bestof:Glycolysis 3pg 2pg miguelferig.jpg en fosfoglicerate mutase reaction - glycolysis jpg own miguelferig 04-08-2011 Metabolic pathways"
Terms of Use   Search of the Day