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The calcitonin gene related peptide (yellow) binds to its receptor (blue) on neurons and smooth muscle cells of cerebral blood vessels, activating a signal cascade through G-proteins (dark blue) in this cells that  leads to a dilatation of the blood vessels (vasodilatation).
What micro plastic is made of - Chemical ingredients.\nClose up of microplastic on finger concept of water pollution and global warming
Science background with molecule or atom
3D Rendered Illustration, visualization of Neurons firing neurotransmitters in the synaptic gap.
CRISPR or Endonuclease enzyme, 3d illustration
Digital background depicting innovative technologies in (AI) artificial systems, neural interfaces and internet machine learning technologies
Chromosome and cell nucleus  with telomere and DNA concept for a human biology x structure containing dna genetic information as a medical symbol for gene therapy or microbiology genetics as a 3D illustration.
Abstract Science nanotechnology surface - 3d rendered SEM (TEM) like image. Medical research concept. Hologram.
Monosodium glutamate, MSG or sodium glutamate molecules. MSG is used in cooking as a flavor enhancer with an umami taste 3d rendering
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
From left to right: the NMDA and  AMPA receptors transport calcium cations into neurons after being activated by the neurotransmitter glutamate and  the GABA receptor (right) transport chloride anions after the activation by gamma aminobutyrate. PDB entries: 6wht,  3kg2, 6d6u
Cells in the body examined by endoscope
Molecular model of insulin hormone, 3D illustration. It is produced by pancreas and takes part in glucose and lipid metabolism
Phospholipid bilayer membrane structures that make up living cells and their contents. This is an image of membrane proteins in the membrane.\nThis image, which looks like a plastic model, evokes biology and biochemistry. It can be used as a cover for magazines, textbooks and presentation materials.\nThis image was not created by AI.
Angiopoietin 1, a protein with important roles in vascular development and angiogenesis. It also contributes to blood vessel maturation and stability. 3d rendering.
Vitamin D Capsule with D3 Element. Dietary Supplements. 3D Render
3D cartoon model in two purpendicular projections, PDB 4g0v, white background.
Abstract particles
Folic acid, folate molecule. It is known as vitamin B9. Molecular model. 3D rendering. Illustration
A molecular model of the flavonoid Quercetin.  An antioxidant and anti-inflamatory, it is used as a nutritional suplement.  It is commonly found in many fruits and vegetables and is a significant chemical component of tea.  Isolated on white.
Tryptophan or Trp is an alpha-amino acid that is used in the biosynthesis of proteins, 3d illustration
Molecular model of lactose, a disaccharide sugar in milk.
Lobomycosis, a chronic skin disease caused by microscopic fungi Lacazia loboi and characterized by nodular and keloidal lesions primarily affecting the limbs and ears, 3D illustration
Open capsule or pill with molecular structure. Nanotechnology concept
Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases.
Evolution and Mystery of Life: Mollusks Living in Water
Cellulase, a cellulose breakdown enzyme.  Produced chiefly by fungi, bacteria, and protozoans and used in laundry detergents.  3d structure.
3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen
Baryte or barite is a mineral consisting of barium sulfate. The baryte group consists of baryte, celestine, anglesite and anhydrite. 3d illustration
DNA - Molecular Structure,
Free Images: "bestof:Dopamine D2 Receptors in Addiction cs.png en The PET images show that repeated exposure to drugs depletes the brain's dopamine receptors which are critical for"
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