Lacunae Collection

Pine stem, light micrograph
Pine stem. Light micrograph of a section through the stem of a pine (Pinus sp.) tree, showing xylem tissue. The xylem is made up of tracheid cells (light pink)

Compact bone, light micrograph
Compact bone. Polarised light micrograph of a transverse section through compact bone tissue, showing Haversian canals (circular regions)

Water lily leaf, light micrograph
Water lily leaf. Light micrograph of a transverse section through the leaf of a water lily (Nympha sp.) plant. All aquatic plants (hydrophytes) have a similar structure

Water fern rhizome, light micrograph
Water fern rhizome. Polarised light micrograph of a section through a rhizome from a water fern (Marselia vestita). Under the epidermis (the outer layer)

Spongy bone, light micrograph
Spongy bone. Light micrograph of a section through stained and decalcified human spongy bone. This bone type is also called cancellous bone

Compact bone. Coloured scanning electron micrograph (SEM) of Haversian canals in compact bone. Bundles of Haversian canals form the core of compact bone

Deer antler, SEM
Deer antler. Coloured scanning electron micrograph (SEM) of a transverse section through cortical (compact) bone from the antler of a deer

Compact bone, SEM
Compact bone. Coloured scanning electron micrograph (SEM) of a freeze-fractured sample of compact bone from a knee joint. This type of bone is found in the walls of bones

Bone canals, light micrograph
Bone canals. Coloured light micrograph of a section through human compact bone, showing Haversian canals (circular regions). The concentric rings surrounding the Haversian canals are called lamellae

Fossilised compact bone, SEM
Fossilised compact bone. Coloured scanning electron micrograph (SEM) of a section through fossilised compact bone. This tissue is found in the dense walls of the shafts of bones

Hyaline cartilage, SEM
Hyaline cartilage. Coloured scanning electron micrograph (SEM) of a freeze-fractured section through hyaline cartilage, a semi-rigid connective tissue

Bone tissue, light micrograph

Osteoclast bone cells, artwork
Osteoclast bone cells. Computer artwork of normal osteoclasts (green) in the lacunae (spaces) of bone tissue. Osteoclasts remodel bone by degrading

Water parsnip rhizome, light micrograph
Water parsnip rhizome. Light micrograph of a cross-section through an underwater rhizome of the lesser water parsnip (Berula erecta)

Bone structure, artwork
Bone structure, computer artwork. In the interior of the bone is cancellous, or spongy, bone (left), which is found at the ends of long bones and vertebra (spine bones)

Water lily leaf stalk, light micrograph
Water lily leaf stalk. Light micrograph of a transverse section through the leaf stalk (petiole) of a water lily (Nymphaea sp.). All aquatic plants (hydrophytes) have a similar structure

Pondweed stem, light micrograph
Pondweed stem. Light micrograph of a transverse section through the stem of a pondweed (Potamogeton sp.) plant. All aquatic plants (hydrophytes) have a similar stem structure

Compact bone, light micrograph
Compact bone. Polarised light micrograph of a transverse section through compact bone tissue, showing Haversian canals (circular regions)

Osteoclasts in bone lacunae, SEM
Osteoclasts in bone lacunae, coloured scanning electron micrograph (SEM). These osteoclasts are seen in Howslips lacunae, spaces in the bone where they are responsible for remodeling the bone

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"Lacunae: Unveiling the Intricate World of Microscopic Spaces" Delving into the depths of nature's secrets, a pine stem reveals its hidden beauty under the lens of a light micrograph. Lacunae, small cavities within this structure, hold untold stories waiting to be discovered. Journeying further into the realm of bone, a compact bone unveils its intricate network through a mesmerizing light micrograph. Within these lacunae lies an unseen world where cells reside and communicate with each other. Like delicate water lily leaves floating on calm waters, their enchanting beauty extends beyond what meets the eye. A light micrograph exposes lacunae within these leaves, offering glimpses into their complex cellular architecture. Beneath the surface of a water fern rhizome lies an astonishing labyrinth of interconnected spaces known as lacunae. Through a captivating light micrograph, we witness nature's ingenuity in creating structures that support life. The spongy bone dances with grace under the microscope's gaze, revealing its porous texture and countless lacunae housing living cells responsible for maintaining our skeletal framework. Exploring deeper into aquatic realms brings us to pondweed stems adorned with intricate patterns when viewed through a light micrograph—each pattern representing unique arrangements that contribute to plant growth and survival. Stepping away from microscopic wonders but still embracing artistry is "Episodes from the Life of St. Augustine, " depicted in fresco form between 1463-65 by unknown hands (see also 192535, 192549). Just like hidden lacunae within bones or plants' tissues reveal secrets about their existence; this artwork hides tales waiting to be deciphered by curious minds. Captivating our attention once again is compact bone—a marvelously structured tissue revealed through both light micrographs and scanning electron microscopy (SEM).