Blood vessels sem hi-res stock photography and images

Colored scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic, enabling them to pass through narrow capillary vessels. The nucleus and other organelles are lost as the cells mature. The cell's interior is packed with hemoglobin, a red iron-containing pigment that has an oxygen-carrying capacity. The main function of red blood cells is to distribute oxygen to body tissues and to carry waste carbon dioxide back to the lungs. Stock Photo

RM2BE0GFT–Colored scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic, enabling them to pass through narrow capillary vessels. The nucleus and other organelles are lost as the cells mature. The cell's interior is packed with hemoglobin, a red iron-containing pigment that has an oxygen-carrying capacity. The main function of red blood cells is to distribute oxygen to body tissues and to carry waste carbon dioxide back to the lungs.

Fossilised dinosaur bone, coloured scanning electron micrograph (SEM). This specimen is from a Tyrannosaurus rex fossil. This dinosaur was a carnivore from the Cretaceous Period. The circular holes are the Haversian canals that carry blood vessels. Magnification: x20 when printed at 10 centimetres across. Stock Photo

RF2Y74T7F–Fossilised dinosaur bone, coloured scanning electron micrograph (SEM). This specimen is from a Tyrannosaurus rex fossil. This dinosaur was a carnivore from the Cretaceous Period. The circular holes are the Haversian canals that carry blood vessels. Magnification: x20 when printed at 10 centimetres across.

This scanning electron micrograph (SEM) depicted a number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular catheter; Magnified 2858x. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo setting. In their adult phase, these cells possess no nucleus. What appears to be irregularly-shaped chunks of debris, are actually fibrin clumps, which when inside the living organi Stock Photo

RM2BE0H23–This scanning electron micrograph (SEM) depicted a number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular catheter; Magnified 2858x. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo setting. In their adult phase, these cells possess no nucleus. What appears to be irregularly-shaped chunks of debris, are actually fibrin clumps, which when inside the living organi

White blood cells lymphocytes in human vein A lymphocyte is a white blood cell that is formed in lymphoid tissue A venule is Stock Photo

RMANHA54–White blood cells lymphocytes in human vein A lymphocyte is a white blood cell that is formed in lymphoid tissue A venule is

RFBDGD6N–ENDOTHELIUM RABBIT, SEM

. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. relaxed contracted Figure 4. Water-tube dimension, (a) Cross-sectional area of the water tubes per unit gill length significantly decreased upon muscular contraction tor each of the species (Corbicula fluminea, Dreissena polymorpha, and Mercenaria mercenaria) examined (mean ± SE; n = 5). (b. c) M. mercenaria gill (SEM) in cross-section: (b) relaxed gill; (c) gill from the same animal after the gill muscles contracted. Blood vessels (bv) are visible, with only the vessel at the top left appearing to be open. the pressure drop Stock Photo

RMRHMBE9–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. relaxed contracted Figure 4. Water-tube dimension, (a) Cross-sectional area of the water tubes per unit gill length significantly decreased upon muscular contraction tor each of the species (Corbicula fluminea, Dreissena polymorpha, and Mercenaria mercenaria) examined (mean ± SE; n = 5). (b. c) M. mercenaria gill (SEM) in cross-section: (b) relaxed gill; (c) gill from the same animal after the gill muscles contracted. Blood vessels (bv) are visible, with only the vessel at the top left appearing to be open. the pressure drop

RF2CGGAW0–Platelet-1 vector icon. Modern vector illustration concepts. Easy to edit and customize.

RF2Y74TC4–Fossilised dinosaur bone, coloured scanning electron micrograph (SEM). This specimen is from a Tyrannosaurus rex fossil. This dinosaur was a carnivore from the Cretaceous Period. The circular holes are the Haversian canals that carry blood vessels. Magnification: x20 when printed at 10 centimetres across.

RM2BE0H0H–This scanning electron micrograph (SEM) depicted a number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular; Magnified 2849x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo setting. In their adult phase, these cells possess no nucleu

Blood clot, Coloured scanning electron micrograph (SEM) of blood clotting in an ovarian follicle. Stock Photo

RFB6DYY8–Blood clot, Coloured scanning electron micrograph (SEM) of blood clotting in an ovarian follicle.

RFBDGD6R–ENDOTHELIUM RABBIT, SEM

. The Cephalopoda. Cephalopoda. Oegopsida sacc; v. etl prost. can cil. ves. sem. 2 figure 14. Cross section of the genitalia of a male Illex (at the level of y in Figure 12). The descending branch of the 3rd part of the seminal vesicle is cut at the left, the ascending branch at the right. The swelling (>v.) is recognizable in the second part of the seminal vesicle (w. sem. 2), as in the 3rd part. can. cil. ciliated canal; v. blood vessels .sacc' diverticulum of genital pockets between vas efferens and spermatophore sac. Other lettering as in Figure 13. A dashed line indicates the epitheli Stock Photo

RMRJCP67–. The Cephalopoda. Cephalopoda. Oegopsida sacc; v. etl prost. can cil. ves. sem. 2 figure 14. Cross section of the genitalia of a male Illex (at the level of y in Figure 12). The descending branch of the 3rd part of the seminal vesicle is cut at the left, the ascending branch at the right. The swelling (>v.) is recognizable in the second part of the seminal vesicle (w. sem. 2), as in the 3rd part. can. cil. ciliated canal; v. blood vessels .sacc' diverticulum of genital pockets between vas efferens and spermatophore sac. Other lettering as in Figure 13. A dashed line indicates the epitheli

SEM depicting red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular. The erythrocyte in the center had undergone the process of crenation, whereupon, it developed a number of cell wall projections, thereby, transforming it into what is termed an acanthocyte. Acanthocytosis could be indicative of a number of hematologic disease processes, but in this instance, was probably due to the fixation procedure carried out on this specimen prior to electron micrographic viewing. Note the normally appearing, biconcave cytomorphologic shape of the other eryt Stock Photo

RM2BE0H14–SEM depicting red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular. The erythrocyte in the center had undergone the process of crenation, whereupon, it developed a number of cell wall projections, thereby, transforming it into what is termed an acanthocyte. Acanthocytosis could be indicative of a number of hematologic disease processes, but in this instance, was probably due to the fixation procedure carried out on this specimen prior to electron micrographic viewing. Note the normally appearing, biconcave cytomorphologic shape of the other eryt

Kidney glomeruli. Coloured scanning electron micrograph (SEM) of a resin cast of glomeruli capillaries and the larger blood vessels supplying them wit Stock Photo

RF2D0738M–Kidney glomeruli. Coloured scanning electron micrograph (SEM) of a resin cast of glomeruli capillaries and the larger blood vessels supplying them wit

RFBDGD6J–ENDOTHELIUM RABBIT, SEM

RMCT1E9X–BLOOD CAPILLARY, SEM

RM2BE0H0B–This scanning electron micrograph (SEM) depicted a number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular catheter; Magnified 11432x Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo setting. In their adult phase, these cells possess no nucleus. What appears to be irregularly-shaped chunks of debris, are actually fibrin clumps, which when inside the living organi

RF2D07392–Kidney glomeruli. Coloured scanning electron micrograph (SEM) of a resin cast of glomeruli capillaries and the larger blood vessels supplying them wit

RMCT1E0Y–BLOOD CAPILLARY, SEM

RM2BE0H0J–This scanning electron micrograph (SEM) depicted a number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular catheter; Magnified 2858x Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo setting. In their adult phase, these cells possess no nucleus. What appears to be irregularly-shaped chunks of debris, are actually fibrin clumps, which when inside the living organis

Artery, Coloured scanning electron micrograph (SEM) of sectioned artery containing red bloodcells (erythrocytes, red). Stock Photo

RFB6DYXD–Artery, Coloured scanning electron micrograph (SEM) of sectioned artery containing red bloodcells (erythrocytes, red).

RMCT1EBE–BLOOD CAPILLARY, SEM

RMCRYN0J–BLOOD CAPILLARY, SEM

RMCT54Y7–CEREBRAL ARTERIOGRAPHY

RM2BE0H18–This scanning electron micrograph (SEM) depicted a number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular catheter; Magnified 5716x Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo setting. In their adult phase, these cells possess no nucleus. What appears to be irregularly-shaped chunks of debris, are actually fibrin clumps, which when inside the living organis

RF2D07393–Kidney glomeruli. Coloured scanning electron micrograph (SEM) of a resin cast of glomeruli capillaries and the larger blood vessels supplying them wit

Blood cells and platelets. Scanning electron micrograph (SEM) of human blood showing red and white cells and platelets. Red blood cells (erythrocytes) have a characteristic biconcave-disc shape and are numerous. These large cells contain hemoglobin, a red pigment by which oxygen is transported around the body. They are more numerous than white blood cells one of which is visible in this sample. White blood cells (leukocytes) are rounded cells with microvilli projections from the cell surface. Leucocytes play an important role in the immune response of the body. Platelets are smaller cells that Stock Photo

RM2BE0GCG–Blood cells and platelets. Scanning electron micrograph (SEM) of human blood showing red and white cells and platelets. Red blood cells (erythrocytes) have a characteristic biconcave-disc shape and are numerous. These large cells contain hemoglobin, a red pigment by which oxygen is transported around the body. They are more numerous than white blood cells one of which is visible in this sample. White blood cells (leukocytes) are rounded cells with microvilli projections from the cell surface. Leucocytes play an important role in the immune response of the body. Platelets are smaller cells that

This scanning electron micrograph (SEM) depicted a closer view of number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular; Magnified 7766x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo setting. In their adult phase, these cells po Stock Photo

RM2BE0H0K–This scanning electron micrograph (SEM) depicted a closer view of number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular; Magnified 7766x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo setting. In their adult phase, these cells po

RMCT54W5–CEREBRAL ARTERIOGRAPHY

RMCPNW2Y–MENINGES, DRAWING

RFD3HT3G–HEAD, MRI

TRANSFONTANELLAR ULTRASONOGRAPHY Stock Photo

RMCT3X2P–TRANSFONTANELLAR ULTRASONOGRAPHY

RFBFMNR2–Liver vein, SEM

This highly enlarged scanning electron micrograph (SEM) depicted a closer look at the details exhibited by of number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular; Magnified 11397x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo Stock Photo

RM2BE0H1Y–This highly enlarged scanning electron micrograph (SEM) depicted a closer look at the details exhibited by of number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular; Magnified 11397x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo

RMCT3X8R–TRANSFONTANELLAR ULTRASONOGRAPHY

RFBFMNR6–Liver vein, SEM

RM2BE0H1A–This scanning electron micrograph (SEM) depicted a closer view of number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular; Magnified 5698x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo setting. In their adult phase, these cells po

RMCT3X8A–TRANSFONTANELLAR ULTRASONOGRAPHY

RFD3HT3F–HEAD, MRI

RFBFMNR0–Foetal vein, SEM

RM2BE0H07–This highly enlarged scanning electron micrograph (SEM) depicted a closer look at the details exhibited by of number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular; Magnified 11397x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo

RFD3HT3H–HEAD, MRI

BLOOD CIRCULATION, ILLUSTRATION Stock Photo

RMD3HNFP–BLOOD CIRCULATION, ILLUSTRATION

Kidney glomerulus. Coloured scanning electronmicrograph (SEM) showing the surface of aglomerulus. Stock Photo

RFB6E2MH–Kidney glomerulus. Coloured scanning electronmicrograph (SEM) showing the surface of aglomerulus.

RM2BE0H0W–This scanning electron micrograph (SEM) depicted a number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular; Magnified 1425x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary function in an in vivo setting. In their adult phase, these cells possess no nucleu

RMD3HNFC–BLOOD CIRCULATION, ILLUSTRATION

Kidney glomeruli, coloured scanning electron micrograph (SEM) Stock Photo

RFB6E022–Kidney glomeruli, coloured scanning electron micrograph (SEM)

This scanning electron micrograph (SEM) depicted a closer view of a number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular; Magnified 7766x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. Some of the erythrocytes are grouped in a stack known as a Rouleaux formation. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is t Stock Photo

RM2BE0H29–This scanning electron micrograph (SEM) depicted a closer view of a number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular; Magnified 7766x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. Some of the erythrocytes are grouped in a stack known as a Rouleaux formation. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is t

RMD3HNFD–BLOOD CIRCULATION, ILLUSTRATION

RMCT09J7–VEIN, SEM

$Small intestine. Coloured scanning electron micrograph (SEM) of a freeze-fractured of the small intestine. The surface consists of deep folds, called Stock Photo$

RF2BT3PN0–Small intestine. Coloured scanning electron micrograph (SEM) of a freeze-fractured of the small intestine. The surface consists of deep folds, called

RM2BE0H1D–This scanning electron micrograph (SEM) depicted a number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular; Magnified 2849x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. Some of the erythrocytes are grouped in stacks known as a Rouleaux formation. Note the biconcave cytomorphologic shape of each erythrocyte, which increases the surface area of these hemoglobin-filled cells, thereby, promoting a greater degree of gas exchange, which is their primary funct

RFBDGP6K–VEIN, SEM

$Intestinal lining. Coloured scanning electron micrograph (SEM) of a freeze-fractured of the small intestine. The surface consists of deep folds, calle Stock Photo$

RF2BT3PJT–Intestinal lining. Coloured scanning electron micrograph (SEM) of a freeze-fractured of the small intestine. The surface consists of deep folds, calle

RMCT01RY–VEIN, SEM

RM2BE0H47–This scanning electron micrograph (SEM) depicted a number of red blood cells found enmeshed in a fibrinous matrix on the luminal surface of an indwelling vascular catheter; Magnified 7766x. In this instance, the indwelling catheter was a tube that was left in place creating a patent portal directly into a blood vessel. The cell in the center was a white blood cell, also known as a leucocyte. The biconcave cytomorphologic shape of the red blood cell, or erythrocyte, increases its surface area of this hemoglobin-filled cell, thereby, promoting a greater degree of gas exchange, which is its prima