motor neurons (multipolar) with many processes 50x - ed reschke photography fotografías e imágenes de stock
arteriole, the smallest artery on human scalp (magnification x250) this arteriole shows all three tunics (or layers). smooth muscle cells are prominent in the tunica media. the tunica intima shows the endothelium and nuclei. by vasoconstriction and va - ed reschke photography fotografías e imágenes de stock
islets of langerhans, pancreas, 25x. shows: islets of langerhans (lightly stained, pink areas - composed of alpha and beta cells, endocrine tissue), and exocrine tissue (darker, surrounding tissue, secretes digestive enzymes) - ed reschke photography fotografías e imágenes de stock
astrocytes; neuroglial cells, 280x at 35mm. shows: processes (perivascular feet) of the astrocytes intimately associated with a brain capillary. possibly helps form the blood-brain barrier to drugs, antibiotics, etc. - ed reschke photography fotografías e imágenes de stock
five epidermal layers (or strata) in thick skin, human. magnification x50. from bottom to top: stratum basale, stratum spinosum, stratum granulosum, stratum lucidum and stratum corneum. also shows the dermis below. - ed reschke photography fotografías e imágenes de stock
photomicrograph of nerve cells showing axons and dendrites; 50x - ed reschke photography fotografías e imágenes de stock
copper ore from arizona, usa. rich in copper minerals, this is part of a boulder that was mined south of tucson. the blue-green is chrysocolla, the blue is azurite and the green is malachite. - ed reschke photography fotografías e imágenes de stock
herbaceous dicot stem, medicago (alfalfa), 25x - ed reschke photography fotografías e imágenes de stock
simple ciliated columnar epithelium, fallopian (uterine) tube, human, 250x shows: cilia, columnar ciliated cells, basement membrane, and supporting connective tissue below. - ed reschke photography fotografías e imágenes de stock
photomicrograph of human red bone marrow where eosinophils (red granular), neutrophils, and neuroblasts are formed; 250x - ed reschke photography fotografías e imágenes de stock
canyonlands national park. rabbit bush in foreground. buck canyon overlook, moab, utah. - ed reschke photography fotografías e imágenes de stock
capillary, arteriole & venule with red blood cells (erythrocytes), 250x at 35mm. the capillary is long vessel with red blood cells in single file and also shows endothelial lining. the venule is to the right of the capillary and shows several red bl - ed reschke photography fotografías e imágenes de stock
motor neuron (multipolar) with cell body and many processes (mostly dendrites), spinal cord (magnification x100). this multipolar motor neuron comes from the anterior (ventral) horn of the spinal cord grey matter. the stain is methylene blue and phloxine. - ed reschke photography fotografías e imágenes de stock
meiosis 1, telophase 1 (1st division), lilium (lily), 400x at 35mm. the cell plate is very evident. - ed reschke photography fotografías e imágenes de stock
epithelial (cheek) cells. oral cavity, methylene blue stain. shaus nuclei, 100x cytoplasm & cell membrane - ed reschke photography fotografías e imágenes de stock
malaria. plasmodium vivax. many parasites inside red blood cells 500x - ed reschke photography fotografías e imágenes de stock
light micrograph of human goblet cells. mucosa of large intestine, 250x at 35mm. the tissue is simple columnar epithelium with goblet cells. the mucous within the goblet cells is the light oval area. - ed reschke photography fotografías e imágenes de stock
simple columnar epithelium, uterus, human--250x - ed reschke photography fotografías e imágenes de stock
paramecium multimicronucleatum shows macro and micro nuclei 100x h - ed reschke photography fotografías e imágenes de stock
thymus. 10x shows: numerous lobules, cortex (darker with numerous lymphocytes), medulla (lighter). produces a hormone thymosin. - ed reschke photography fotografías e imágenes de stock
blue-green algae (living). gloeocapsa. cyanobacteria. nitrogen fixing. unicellular cells enclosed in layers. 250x h - ed reschke photography fotografías e imágenes de stock
liver cells, eukaryotic cell, 250x. shows: nucleus, cytoplasm, plasma membrane. amphiuma (salamander, siren) - ed reschke photography fotografías e imágenes de stock
scarlet macaws preening. ara macao. brilliant plumage, harsh voice. range: brazil to mexico. florida - ed reschke photography fotografías e imágenes de stock
x-ray of adult right hand. 8 carpals, metacarpals, phalanges, distal radius & ulna, sesamoid bones (thumb). - ed reschke photography fotografías e imágenes de stock
gloeocapsa, a cyanobacteria, photosynthetic, gram negative, 250x at 35mm. nitrogen fixing, unicellar. cells enclosed in layers of gelatinous material. formerly known as blue-green algae. - ed reschke photography fotografías e imágenes de stock
motor neuron; spinal cord, 50x at 35mm. shows: cell body, nucleus, dendrites (numerous processes attached to cell body), axon (single, long, nerve fiber), and neuroglial cells (dark spots). - ed reschke photography fotografías e imágenes de stock
female dewy white-faced meadow hawk dragonfly (sympetrum obtrusum) michigan, usa - ed reschke photography fotografías e imágenes de stock
thin skin-epidermis, dermis, cornified layer - ed reschke photography fotografías e imágenes de stock
mimosa pudica. sensitive plant. unstimulated leaflets spread apart. turgor movements. tropical america. 1/2 - ed reschke photography fotografías e imágenes de stock
stem cross section. corn (zea), herbaceous monocot, 25x. shows: scattered vascular bundles typical of monocots, xylem, phloem, sclerenchyma, pith, and epidermis. - ed reschke photography fotografías e imágenes de stock
spermatozoa in a seminiferous tubule, 100x. spermatozoa show a: head, flagellum, and acrosome (secretes enzymes that help penetrate the egg), guinea pig. - ed reschke photography fotografías e imágenes de stock
roseate spoonbill (ajaja ajaja) in breeding plumage - ed reschke photography fotografías e imágenes de stock
black-tailed prairie dogs (cyomys ludovicianus) intimate behavioral interactions - ed reschke photography fotografías e imágenes de stock
black skimmer (rynchops niger) in flight showing much elogated mandible - ed reschke photography fotografías e imágenes de stock
anatomy of a small vein--tunics (or layers), cross section, 250x - ed reschke photography fotografías e imágenes de stock
normal artery in cross section (magnification x100) h & e stain. three distinct layers or tunics: tunica interna (intima), tunica media, tunica externa (adventitia). also shows endothelium and lumen with red and white blood cells. - ed reschke photography fotografías e imágenes de stock
scarlet macaw, ara macao, endangered species, south american parrot is poached in the pet trade, alligator farm, st. augustine, fl. v - ed reschke photography fotografías e imágenes de stock
the butchart gardens sunken garden victoria, bc, canada - ed reschke photography fotografías e imágenes de stock
epididymis. shows sperm in lumens, stereocilia, epithelium, connective tissue (between tubules) 50x - ed reschke photography fotografías e imágenes de stock
paramecium, food vacuoles and contractile vacuoles, 250x at 35mm. the food vacuoles contain stained yeast cells which were ingested. also shows two contractile vacuoles and cilia. ciliated protozoan. - ed reschke photography fotografías e imágenes de stock
small intestine---villi, simple columnar epithelium, goblet cells, intestinal glands, paneth cells, ileum, human, 50x - ed reschke photography fotografías e imágenes de stock
histology (microanatomy) of an arteriole---layers or tunics, cross section, 250x - ed reschke photography fotografías e imágenes de stock
nephron, renal corpuscle and renal tubules--glomerulus, bowman's capsule, macula densa, distal, convoluted tubules, proximal convoluted tubules, 100x - ed reschke photography fotografías e imágenes de stock
plant cell anatomy (spirogyra) chloroplast, cell wall, nucleus, pyrenodids, 250x - ed reschke photography fotografías e imágenes de stock
