Ηλεκτρονική μικρογραφία σάρωσης

Nerve cells. Coloured scanning electron micrograph (SEM) of nerve cells, known as neurones. Nerve cells occur in the brain, spinal cord, and in ganglia. Each nerve cell has a large cell body (brown) with several long processes extending from it. The processes usually consist of one thicker axon and several thinner branched dendrites. The dendrites collect information in the form of nerve impulses from other nerve cells and pass it to the cell body.

Nerve cells. Coloured scanning electron micrograph (SEM) of nerve cells, known as neurones. Nerve cells occur in the brain, spinal cord, and in ganglia. Each nerve cell has a large cell body (brown) with several long processes extending from it. The processes usually consist of one thicker axon and several thinner branched dendrites. The dendrites collect information in the form of nerve impulses from other nerve cells and pass it to the cell body.

Moss spore capsule: Colored Scanning electron micrograph (SEM) of moss (Funaria sp) spore capsule. : pics

Moss spore capsule: Colored Scanning electron micrograph (SEM) of moss (Funaria sp) spore capsule. : pics

Fertilization. Colored scanning electron micrograph (SEM) of a sperm (blue) attempting to penetrate a human egg (orange).

Fertilization. Colored scanning electron micrograph (SEM) of a sperm (blue) attempting to penetrate a human egg (orange).

Blood clot. Coloured scanning electron micrograph (SEM) of a blood clot from the inner wall of the left ventricle of a human heart. Red blood cells (erythrocytes) are trapped within a fibrin protein mesh (cream). The fibrin mesh is formed in response to chemicals secreted by platelets (pink), fragments of white blood cells. Clots are formed in response to cardiovascular disease or injuries to blood vessels. Connective tissue (orange) is also seen.

Blood clot. Coloured scanning electron micrograph (SEM) of a blood clot from the inner wall of the left ventricle of a human heart. Red blood cells (erythrocytes) are trapped within a fibrin protein mesh (cream). The fibrin mesh is formed in response to chemicals secreted by platelets (pink), fragments of white blood cells. Clots are formed in response to cardiovascular disease or injuries to blood vessels. Connective tissue (orange) is also seen.

Cochlea from Inner Ear. Color-enhanced SEM of the inside of a guinea pig inner ear showing the hearing organ, or cochlea. Running along the spiral structure are rows of sensory cells which respond to different frequencies of sound. The whole organ is just a few millimeters long.

Cochlea from Inner Ear. Color-enhanced SEM of the inside of a guinea pig inner ear showing the hearing organ, or cochlea. Running along the spiral structure are rows of sensory cells which respond to different frequencies of sound. The whole organ is just a few millimeters long.

Nerve bundle. Coloured scanning electron micrograph (SEM) of a freeze-fractured section through a bundle of myelinated nerve fibres. Myelin sheaths (yellow) can be seen surrounding the axons (blue). Perineurium (connective tissue, pink) surrounds the nerve bundle while endoneurium divides the individual fibres.

Nerve bundle. Coloured scanning electron micrograph (SEM) of a freeze-fractured section through a bundle of myelinated nerve fibres. Myelin sheaths (yellow) can be seen surrounding the axons (blue). Perineurium (connective tissue, pink) surrounds the nerve bundle while endoneurium divides the individual fibres.

21 Foods Under The Microscope

Food Under The Microscope

21 Foods Under The Microscope

Breathtaking Scanning electron micrograph of a stem cell Regenerative therapies such as stem cells have the potential to change the face of medicine over the next 20 years. Description from pinterest.com. I searched for this on bing.com/images

Breathtaking Scanning electron micrograph of a stem cell Regenerative therapies such as stem cells have the potential to change the face of medicine over the next 20 years. Description from pinterest.com. I searched for this on bing.com/images

Caption: Dendritic and T-cells. Coloured Scanning Electron Micrograph (SEM) of two types of protective cell of the human immune system. A large dendritic or Langerhans cell is seen (at lower right) with a T cell attached (at upper left). Dendritic cells are found in the skin. They recognise foreign proteins (antigens) and ingest them into cytoplasmic Birbeck granules. Antigens are then "processed" and secreted out of the cell, to be dealt with by other immune cells.

Caption: Dendritic and T-cells. Coloured Scanning Electron Micrograph (SEM) of two types of protective cell of the human immune system. A large dendritic or Langerhans cell is seen (at lower right) with a T cell attached (at upper left). Dendritic cells are found in the skin. They recognise foreign proteins (antigens) and ingest them into cytoplasmic Birbeck granules. Antigens are then "processed" and secreted out of the cell, to be dealt with by other immune cells.

Colored scanning electron micrograph (SEM) of squamous cell carcinoma (cancer) cells from a human mouth. The many blebs (lumps) and microvilli (small projections) on the cells' surfaces are typical of cancer cells.

Mouth Cancer Cells, Sem

Colored scanning electron micrograph (SEM) of squamous cell carcinoma (cancer) cells from a human mouth. The many blebs (lumps) and microvilli (small projections) on the cells' surfaces are typical of cancer cells.

Pinterest
Αναζήτηση