Pores Collection

Acrosphaera radiolarian, SEM
Acrosphaera radiolarian. Coloured scanning electron micrograph (SEM) of the shell of a Acrosphaera sp. radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Leaf pores, SEM
Leaf pores. Coloured scanning electron micrograph (SEM) of stomata (holes) on the surface of a leaf. These structures perform a similar function to the pores in human skin

Osteoporotic bone, SEM
Osteoporotic bone. Coloured scanning electron micrograph (SEM) of fractured bone tissue from a patient suffering from osteoporosis (brittle bone disease)

Foraminifera, SEM
Foraminifera. Coloured scanning electron micrograph (SEM) of a selection of foraminiferans, including Oolina hexagona (bottom right) and a number of Lagena sp

Picture No. 11675628
Scanning Electron Micrograph (SEM): Stomata of Yew Leaf. Date:

Close-up portrait of a tiger shark (Galeocerdo cuvier) close to the surface, Hawaii, USA
Close-up portrait of a tiger shark (Galeocerdo cuvier) swimming close to the surface of the ocean; Hawaii, United States of America

Grey Reef Shark
A close look at the sensory organs known as ampullae of Lorenzini, on a Grey reef shark (Carcharhinus amblyrhynchos. These dark pores around their snout and face pick up electrical fields)

Cell membrane ion channels, artwork C016 / 7689
Cell membrane ion channels. Computer artwork of a section through the membrane of an animal cell, showing transmembrane ion channel proteins (yellow)

Stomata on epidermis of Elder leaf
Stomata. Coloured scanning electron micrograph of the under surface of a leaf from an Elder tree, Sambucus nigra, showing an open stomata

Picture No. 11675633
Light Micrograph (LM): A transverse section of a stem of Clover (Trifolium sp.) with an unidentified parasite attached. Date:

Brown-rot (Postia placenta) close-up detail of pores, Clumber Park, Nottinghamshire, England, October

Natural sponge, rounded shape, close up

Sugar uptake in muscles, diagram
Sugar uptake in muscles. Diagram showing sugar from a drink (upper right) being taken up by the muscles of the human body

Radiolarian, SEM C014 / 4862
Radiolarian. Coloured scanning electron micrograph (SEM) of the shell or test of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Radiolarian, SEM C014 / 4863
Radiolarian. Coloured scanning electron micrograph (SEM) of the shell or test of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Natural sponge C013 / 9837
Natural sponge. Close-up of a natural sponge showing its structure. Sponges (phylum Porifera) are simple multicellular aquatic animals

Natural sponge C013 / 9836
Natural sponge. Sponges (phylum Porifera) are simple multicellular aquatic animals. They have bodies full of pores and channels (seen here) that allow water to circulate through them

Chickens egg outer shell detail, SEM
Chickens egg outer shell detail, coloured scanning electron micrograph (SEM). Hard-shelled eggs are produced by birds and some reptiles. The shell protects the growing embryo inside

Foraminiferan, SEM
Foraminiferan. Coloured scanning electron micrograph (SEM) of the foraminiferan Oolina squamosa. Foraminiferans are marine single-celled protists that construct and inhabit shells (tests)

Lavender leaf oil gland, SEM
Lavender leaf oil gland. Coloured scanning electron micrograph (SEM) of an oil gland on the surface of a French lavender (Lavandula dentata) leaf

Orbulina foraminiferan, SEM
Orbulina. Coloured scanning electron micrograph (SEM) of the shell of the foraminiferan Orbulina sp. Foraminiferans are marine single-celled protists that construct and inhabit shells (tests)

Lychnocanium radiolarian, SEM
Lychnocanium radiolarian. Coloured scanning electron micrograph (SEM) of the shell of a Lychnocanium sp. radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Amphisphaerina radiolarian, SEM
Amphisphaerina radiolarian. Coloured scanning electron micrograph (SEM) of the shell of a Amphisphaerina sp. radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Acrosphaera radiolarian, SEM
Acrosphaera radiolarian. Coloured scanning electron micrograph (SEM) of the shell of a Acrosphaera sp. radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Small white butterfly egg, SEM
Small white butterfly egg. Coloured scanning electron micrograph (SEM) of an egg of the small white butterfly (Pieris rapae)

Skin anatomy. Historical anatomical artwork of the human skin. The main diagram (lower centre) shows scalp hairs and sebaceous glands (yellow, near surface)

TEM of a cell nucleus membrane showing pores
Cell nucleus membrane. Transmission electron micrograph (TEM) of a section through part of the nuclear membrane of a kidney cell revealing its nuclear pores

Col. freeze-fracture TEM of cell nucleus membrane
Cell nucleus membrane. Coloured freeze-fracture transmission electron micrograph (TEM) of part of the nuclear membrane of a liver cell

Cellular clock. Conceptual artwork of a clock and the internal structures (organelles) of an animal cell. This could represent the rate of metabolic cell reactions

Dermatological examination
MODEL RELEASED. Dermatological examination. Dermatologist using a magnifying glass to examine the skin of a patients face

Beech tree leaf, light micrograph
Beech tree leaf. Light micrograph of a section through the leaf of a common beech tree (Fagus sylvatica), showing the midrib

Sweet pea stem, light micrograph
Sweet pea stem. Light micrograph of a section through the hollow stem of a sweet pea (Lathyrus odoratus) plant, showing a ring of vascular bundles

Beech tree leaves, light micrograph
Beech tree leaves. Light micrograph of a section through two leaves from different parts of a common beech tree (Fagus sylvatica)

Osteoporotic bone, artwork
Osteoporosis. Computer artwork of osteoporotic bone. Osteoporosis (brittle bone disease) causes a reduction in overall bone mass and an increase in the bones porosity

Aquaporins, artwork
Aquaporins. Computer artwork of water molecules (red and white) passing through pores (yellow) in a cell membrane (blue). These pores are proteins known as aquaporins that are embedded in

Photosynthesis, diagram
Photosynthesis. Diagram showing the inputs and outputs (coloured arrows) involved in photosynthesis in the leaf of a plant

mRNA leaving the nucleus, artwork. mRNA (messenger ribonucleic acid, orange) is the intermediary molecule between DNA (deoxyribonucleic acid) and its protein product

Radiolarian, SEM
Radiolarian. Coloured scanning electron micrograph (SEM) of the shell of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Bracket fungus (Daedaleopsis confragosa)
Blushing bracket fungus (Daedaleopsis confragosa). Close-up of the underside of the blushing bracket fungus showing its pores. The pores are the ends of the tubes within which the spores are produced

Radiolarian skeleton, artwork
Radiolarian skeleton. Computer artwork of the skeleton (test) of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Nuclear pore complexes, SEM
Nuclear pore complexes. Coloured scanning electron micrograph (SEM) of the surface of a cell nucleus showing the numerous nuclear pore complexes (NPCs, rings) in its envelope

Blocked pore in acne, artwork
Blocked pore in acne, computer artwork. Sweat pore (centre) that has become blocked (centre) due to acne. Acne is a skin disorder in which the sebaceous glands of the skin become inflamed (red areas)

Plant stomata, light micrograph
Plant stomata. Light micrograph of stomatal pores on the surface of a kidney bean (Phaseolus sp.) leaf. The stomata are gaps (white) within two guard cells (blue, kidney-shaped)

Tea leaf, light micrograph
Tea leaf. Light micrograph of a cross-section through a tea (Camellia sinensis) leaf. The upper and lower epidermis on the surfaces of the leaf are blue

Plant stoma, light micrograph
Plant stoma. Light micrograph of a stomatal pore (centre) on the surface of a stinging nettle (Urtica dioica) leaf. The stomata are gaps (white) within two guard cells (kidney-shaped)

Mushroom surface, SEM
Mushroom surface. Coloured scanning electron micrograph (SEM) of the spore-bearing surface of a hen of the woods mushroom (Grifola frondosa). This surface is found on the underside of the mushroom

Ivy stem, SEM
Ivy stem. Coloured scanning electron micrograph (SEM) of the surface of an ivy plant stem. The star- shaped trichomes, a type of modified hair cell, may function in preventing water loss

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"Pores: Unveiling the Hidden World" Pores, those tiny openings found in various natural and man-made structures, hold secrets waiting to be discovered. From osteoporotic bone to leaf pores, these microscopic gateways offer a glimpse into the intricate workings of our world. In the realm of science, scanning electron microscopy (SEM) has allowed us to explore the fascinating intricacies of pores. Picture No. 11675628 reveals the delicate network of osteoporotic bone, highlighting how these minuscule channels contribute to its strength and resilience. Moving on from bones to nature's wonders, SEM captures the beauty of leaf pores or stomata on an Elder leaf. These minute structures play a vital role in regulating gas exchange for photosynthesis and transpiration in plants. Venturing deeper into unseen realms, we encounter Acrosphaera radiolarian under SEM. These marine microorganisms showcase their complex skeletal structure with countless intricate pores that aid in nutrient absorption and locomotion. Zooming even closer under SEM's watchful eye, we discover small white butterfly eggs revealing their secret through magnification. The detailed examination unravels unique pore patterns that serve as entry points for oxygen exchange during embryonic development. Shifting gears from nature's wonders to oceanic marvels, a close-up portrait captures a tiger shark gracefully gliding near Hawaii's surface. Its sleek skin bears evidence of tiny dermal denticles with minute pores acting as sensory receptors within this majestic predator's domain. Delving further underwater brings us face-to-face with another inhabitant - the Grey Reef Shark. Its textured skin showcases numerous specialized dermal denticles housing microscopic openings that enhance hydrodynamics while navigating vast ocean depths. Stepping away from living organisms but still exploring hidden worlds brings us to brown-rot fungi thriving at Clumber Park in Nottinghamshire. A close-up detail highlights their porous surfaces responsible for breaking down wood fibers—a crucial step in the natural recycling process.