What is the function of the granular cell layer?

Granule cells are the smallest and most numerous type of neurons in the brain. They are involved in functions ranging from processing visual and motor information to learning and memory.

What does granular layer contain?

n. The deeper of the two layers of the cortex of the cerebellum, containing many granule cells whose dendrites synapse with incoming highly branched nerve fibers but whose axons form synapses with dendrites of Purkinje cells, basket cells, and stellate cells; granular layer of the cerebellar cortex.

What is the function of granule cells in the olfactory bulbs?

Granule cells (GCs) are the most abundant inhibitory neuronal type in the olfactory bulb and play a critical role in olfactory processing. GCs regulate the activity of principal neurons, the mitral cells, through dendrodendritic synapses, shaping the olfactory bulb output to other brain regions.

What is the granular layer of cerebellar cortex?

granular layer – the layer is densely populated by small granule cells with dark-staining nuclei and scanty cytoplasm. Each cell emits four to five dendrites, which make synaptic contact with the afferent mossy fibers.

What is a granular layer?

The stratum granulosum (or granular layer) is a thin layer of cells in the epidermis lying above the stratum spinosum and below the stratum corneum (stratum lucidum on the soles and palms). Keratinocytes migrating from the underlying stratum spinosum become known as granular cells in this layer.

What is in the granular layer of the epidermis?

The granule cell layer (stratum granulosum) is the next layer (3-5 layers of cells). As the cells move up into this layer, they start to lose their nuclei and cytoplasmic organelles, and turn into the keratinised squames of the next layer. The granules contain a lipid rich secretion, which acts as a water sealant.

What does the piriform cortex do?

The piriform cortex (PC) is a key brain area involved in both processing and coding of olfactory information. It is implicated in various brain disorders, such as epilepsy, Alzheimer’s disease, and autism.

What is granular layer?

What are the 3 layers of cerebellum?

Cerebellar cortex. As previously mentioned, the grey matter of the cerebellum is also referred to as the cortex and may be split into three layers; the outer molecular layer, the middle layer of Purkinje cells and the inner granular layer.

What is stratum granulosum and its function?

The cells of the stratum granulosum (SGR) accumlate dense basophilic keratohyalin granules (seen on the close-up view). These granules contain lipids, which along with the desmosomal connections, help to form a waterproof barrier that functions to prevent fluid loss from the body.

What are the granules in stratum granulosum?

Keratohyalin granules primarily exist within the stratum granulosum, with some present in the stratum spinosum. These granules are insoluble in water and located within the cytoplasm where they promote dehydration of the cell.