Histology Collection (page 33)

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

Rabbit eye, longitudinal section
Rabbit eye. Light micrograph of a longitudinal section through the eye of a rabbit (Oryctolagus cuniculus). The rabbit has a typical mammalian eye structure

Plasma cell, TEM
Plasma cell, coloured transmission electron micrograph (TEM). This section has revealed the cells large central nucleus (brown)

Taste buds, light micrograph
Taste buds. Coloured light micrograph of a section through the tongue, showing taste buds (round, purple). The taste buds are within papillae (projections) located on the surface of the tongue

Stomach pylorus glands, light micrograph
Stomach pylorus glands. Light micrograph of a section through glands (pink) in the pylorus region of the stomach. Pyloric glands contain mucus cells and G cells that secrete gastrin

Thyroid follicle structures, TEM
Thyroid follicle structures. Coloured transmission electron micrograph (TEM) of a section through structures in a thyroid follicle

Sheeps hoof, light micrograph
Sheeps hoof. Polarised light micrograph of a transverse section through the hoof of a sheep. In sheep and other hooved animals, the hoof is made of the same material as nails and claws

Sago cycad leaf, SEM
Sago cycad leaf. Coloured scanning electron micrograph (SEM) of a section through a sago cycad (Cycas revoluta) leaf. At lower centre and left are vascular bundles (orange clusters)

Mushroom, light micrograph
Mushroom. Light micrograph (LM) of a section through a mushroom, Agaricus sp. (formerly Psalliota sp.), showing its stalk (orange) and gills (long white projections)

Mushroom gills, light micrograph
Mushroom gills. Light micrograph (LM) of a section through the gills of a mushroom, Agaricus sp. (formerly Psalliota sp.)

Spinal cord, transverse section
Spinal cord. Light micrograph of a transverse section through a human spinal cord. The spinal cord has a central canal around which are the dorsal and ventral horns (orange)

Dog tongue tissue, light micrograph
Dog tongue tissue. Light micrograph of a transverse section through the tongue of a dog, showing the tongues surface (across top)

Foot skin tissue, light micrograph
Foot skin tissue. Light micrograph of a transverse section through skin from a human foot. The skin is made up of an outer epidermis (across top)

Nerve cell trauma response. Fluorescent light micrograph of a section through a spinal cord affected by multiple sclerosis (MS)

Brain tissue, light micrograph
Brain tissue. Light micrograph of a section through tissue from the mammalian brain, in this case from the cerebellum. The cerebellum is the part of the brain that controls sensory perception

Skin sweat glands, light micrograph
Skin sweat glands. Light micrograph of a transverse section through skin from a human foot. The skin is made up of an outer epidermis (across top) and a lower epidermis (deep purple)

Cat tongue tissue, light micrograph
Cat tongue tissue. Polarised light micrograph of a transverse section through a cats tongue. The outer stratified epithelium (right) has spike-like (white) keratinised papillae

Tongue tissue, light micrograph
Tongue tissue. Polarised light micrograph of a transverse section through a tongue, showing the surface (across top). Here, there are four rounded fungiform papillae

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Histology, the study of tissues at a microscopic level, unveils the intricate beauty and complexity of our body's structures. Through techniques like light micrography and transmission electron microscopy (TEM), scientists have been able to explore various tissues and unravel their secrets. One such tissue is the cerebellum, which plays a crucial role in coordinating movement and balance. By examining cerebellum tissue under a light microscope, we can observe its distinct layers and cell types. The synapse nerve junctions captured through TEM reveal the precise connections between neurons that allow for seamless communication. In 1894, Spanish histologist Santiago Ramon y Cajal created an exquisite drawing showcasing different cell types within the mammalian cerebellum. His meticulous work laid the foundation for understanding neural networks. Moving beyond just one region of the brain, histologists also delve into other fascinating areas like the hippocampus. Microscopic examination of hippocampus brain tissue provides insights into memory formation and spatial navigation. Purkinje nerve cells found within the cerebellum are particularly captivating under scrutiny. Their elaborate branching patterns give rise to their unique appearance when observed through a microscope slide. Histological studies extend beyond neurological tissues; they encompass organs throughout our body systems as well. For instance, kidney tubules in section offer glimpses into renal function while highlighting their structural organization. The human brain itself holds countless mysteries waiting to be unraveled by histologists examining microscope slides containing delicate slices of this complex organ. These slides provide glimpses into both healthy brains and those affected by diseases like Alzheimer's - offering valuable insights into neurodegenerative disorders. Exploring deeper with TEM reveals cellular components such as rough endoplasmic reticulum - an organelle involved in protein synthesis - providing detailed views at nanoscale resolution. Histology not only focuses on neurons but also encompasses glial cells that support neuronal functions. Light micrographs capturing glial stem cell cultures showcase the potential for regeneration and repair within the nervous system.