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A pseudostratified columnar epithelia are tissues formed by a single layer of cells that give the appearance of being made from multiple layers. The nuclei of these epithelial cells are at different levels leading to the illusion of being stratified. The goblet cells secrete mucus, a viscous fluid composed primarily of highly glycosylated proteins…[Read more]

Elastic Cartilage is one of three types of cartilage found in the human body. It is a form of connective tissue. The matrix is dominated by a dense network of elastin fibres. Elastic cartilage provides support with moderate elasticity. It is found mainly in the larynx, the external part of the ear (pinna), and the tube leading from the middle part…[Read more]

In Latin, the word cerebellum means little brain. The cerebellum is a part of the brain and it lies behind and below the cerebrum. It functions to coordinate both the voluntary movements and muscle function in order to maintain balance, coordination and speech that lead to a smooth and balance muscular activity. The cerebellum is comprised of a…[Read more]

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Mammal Cerebellum – cerebellum coordinates muscular activity, maintains posture and equilibrium. The cerebellar cortex forms a series of deeply convoluted folds or folia supported by branching central medulla of white matter. Molecular layer – contains two main types of neurons: stellate cells and basket cells, w/c are scattered among dendritic…[Read more]

Simple cuboidal epithelium is a type of epithelium that consists of a single layer of cuboidal (cube-like) cells. These cuboidal cells have large, spherical and central nuclei. Simple cuboidal epithelia are found on the surface of ovaries, the lining of nephrons, the walls of the renal tubules, and parts of the eye and thyroid. On these surfaces,…[Read more]

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Stratified squamous keratinized epithelium is found mainly in the epidermis of our skin. It helps prevent water loss or dehydration, and protection from external forces. The cells in the basement membrane move progressively toward the surface of the skin as they accumulate keratin (through keratinization). They become thinner as they approach the…[Read more]

This is an example of a Skeletal muscle (longitudinal section) viewed under HPO magnification… The numbered parts are: 1. MUSCLE FIBERS = Fibers are packed into regular parallel bundles. Long and cylindrical in shape. 2. NUCLEI = Muscle cells and muscle fibers have many nuclei because these cells arise from a fusion of myoblasts. 3. STRIATIONS =…[Read more]