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Brain cells make up the functional tissue of the brain. The rest of the brain tissue is the structural stroma that includes connective tissue such as the meninges , blood vessels , and ducts. The two main types of cells in the brain are neurons , also known as nerve cells, and glial cells , also known as neuroglia. [ 1 ]
The neural crest runs the length of the tube with cranial neural crest cells at the cephalic end and caudal neural crest cells at the tail. Cells detach from the crest and migrate in a craniocaudal (head to tail) wave inside the tube. [67] Cells at the cephalic end give rise to the brain, and cells at the caudal end give rise to the spinal cord ...
Images of the brain of flies. Visualization of dendritic spines using Golgi Method. SynapseWeb. Includes a time-lapse study of Golgi impregnation. Berrebi, Albert: Cell Biology of Neurons: Structure and Methods of Study. (in PDF) Stained brain slice images which include the "Golgi-stained neurons" at the BrainMaps project
Examining the human brain at the cellular level in more detail than ever before, scientists have identified an enormous array of cell types - more than 3,300 - populating our most complex organ ...
Stained brain slice images which include the "cerebral cortex" at the BrainMaps project "The primary visual cortex", Webvision: Comprehensive article about the structure and function of the primary visual cortex. "Basic cell types", Webvision: Image of the basic cell types of the monkey cerebral cortex. Cerebral Cortex – Cell Centered Database
White matter is composed of bundles, which connect various grey matter areas (the locations of nerve cell bodies) of the brain to each other, and carry nerve impulses between neurons. Myelin acts as an insulator, which allows electrical signals to jump , rather than coursing through the axon, increasing the speed of transmission of all nerve ...
This gets a little technical but basically, the study found that exercise improves the ability of brain cells to respond to insulin—and that can help thinking, memory, and brain health ...
The arachnoid mater covering the brain is referred to as the arachnoidea encephali, and the portion covering the spinal cord as the arachnoidea spinalis. The arachnoid and pia mater are sometimes considered as a single structure, the leptomeninx, or the plural version, leptomeninges ( lepto , from the Greek root meaning "thin" or "slender").