We call this selection microscopic anatomy. The microscopic anatomy is about structures that are examined by optical microscopy or electron microscopy.
In the large and wide selection, you will first and foremost find models that show tissues and cells. These include liver tissue, kidney tissue, bone tissue, a model of blood vessels, the tissue of the tongue as well as a model of specific tissues and cells in the eye.
You will also find models of individual cells as well as structures in the cell. These include a skeletal muscle muscle fiber, a general animal cell, an undifferentiated human cell, models of the phases of meiosis and mitosis, and DNA models.
Previously, we called the sample microanatomy. The models in the sample are used both for histological purposes (the study of tissues), biological purposes and for understanding diseases.
Anatomically, the models of tissues and cells show the structure / architecture that is characteristic of the tissues of the organ. With the model of liver tissue in hand, you can e.g. see liver lobules, liver cells, bile ducts, the central vein and the Glisson triads (portal triads).
With the model of kidney tissue in hand, one can see the beginning of the ureter (ureter), the renal cortex (kidney cortex), the renal marrow (medulla renalis) in the form of pyramids and the entire renal pelvis (with calices). Furthermore, one can see many details regarding. small and physiologically important structures such as the renal body (corpusculum renis), the nephron with Henle's sling and tubule, and collecting ducts.
The model of bone tissue shows the clear differences between the compact bone tissue (substantia compacta / cortical bone) and the spongy bone tissue (substantia spongiosa / trabecular bone). With the model in hand, one can see that the former consists of bone matrix in the form of lamellae, which are organized in Haverske systems (cortical osteons). One can also see the spongy network of spongy bone tissue of trabeculae with communicating cavities filled with bone marrow. Membranes such as the periosteum (periosteum) and endostasis are also shown.
The model of blood vessels primarily shows 2 arteries and 1 vein. With the model in hand, you can see details such as the venous pump (flap and muscle pump system) and the different layers in the walls of the blood vessels (tunica intima, tunica media and tunica adventitia).
The model of the tongue shows the many different tissues. With the model in hand, you can see details such as taste buds, nerve supply (via the cranial nerves), tongue muscles and the 4 papillae (papillae vallatae, papillae filiformes, papillae fungiformes and papillae foliatae).
The model of specific tissues and cells in the eye shows the retina (retina), choroidea (choroid) and sclera (tendon) as well as related nerve cell branches. With the model in hand, you can e.g. see the photoreceptors (rod and tap layer / stratum photosensorium) with many details.
As for the models, which show individual cells as well as structures in the cell, you will find, for example, the model of a muscle fiber from the skeletal muscles. With the model in hand, one can see the neuromuscular endplate and details such as sarcolemma, Transverse Tubuli / T-tubuli, sarcomeres, myosin and actin filaments, cell nucleus and mitochondria.
The models of cells show primarily organelles. With one of the models in hand, in addition to the cell membrane (plasma lemma), one can see structures such as nucleus (cell nucleus) with chromatin and nucleolus, ribosomes, rough and smooth ER, the Golgi apparatus, mitochondria, lysosomes and peroxisomes.
With a model in hand of mitosis or meiosis, one can see the different phases of cell division in an educational way.
DNA models offer in various ways insight into the chemical structure of DNA strands, which is the basis for the genome / genome / genes.
Clinically, the models of tissues and cells can be used to understand diseases in the respective tissues. These can be liver diseases such as cirrhosis ("cirrhosis"), acute and chronic hepatitis as well as NASH and liver tumors, as well as kidney diseases such as diabetic nephropathy and glomerulonephritis.
The model of bone tissue can be used to understand e.g. osteoporosis and multiple myeloma. The model of blood vessels is ideal for understanding atherosclerosis, blood clots, DVT and the use of support stocking, while the model of the tongue can be used for understanding disorders such as fissured tongue, infections, cancer and issues related to the cranial nerves supplying the tongue.
The model of tissues and cells in the eye can be used to understand disorders such as retinal detachment, AMD, uveitis, scleritis as well as metastases and primary tumors.
The models of individual cells as well as the cell structures can also be used for clinical purposes. The model of a muscle fiber from skeletal muscle can be used to understand hypertrophy as well as the importance of protein. The other models of cells can be used to understand e.g. mitochondrial diseases and lysosomal diseases.
The DNA models can also be used to understand disease - eg sickle cell anemia due to a mutation.