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Miguel Gatsi posted an update in the group Histology Art (MT 30 – I) 4 years, 7 months ago
Histology Art for Nervous Tissues 🔬
- Nervous tissue
- Miguel Gatsi replied 4 years, 7 months ago
  This is a Nervous tissue. The large, cauliflower-like cerebellum projects dorsally from under the occipital lobe of the cerebrum. Like the cerebrum, the cerebellum has two hemispheres and a convoluted surface. The cerebellum provides precise timing for skeletal muscle activity and controls our balance, thus body movements are smooth and coordinated. It monitors body position and the amount of tension in various body parts. When needed, the cerebellum sends messages to initiate the appropriate corrective measures.
  - Miguel Gatsi replied 4 years, 7 months ago
    The spinal cord is the the major column of nerve tissue that is connected to the brain and lies within the vertebral canal and from which the spinal nerves emerge. Thirty-one pairs of spinal nerves originate in the spinal cord: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. The spinal cord and the brain constitute the central nervous system. The spinal cord consists of nerve fibers that transmit impulses to and from the brain. Like the brain, the spinal cord is covered by three connective-tissue envelopes called the meninges. The space between the outer and middle envelopes is filled with cerebrospinal fluid (CSF), a clear colorless fluid that cushions the spinal cord against jarring shock. Also known simply as the cord. In addition, the spinal cord is a long, thin, tubular structure made up of nervous tissue, which extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column. It encloses the central canal of the spinal cord, which contains cerebrospinal fluid.
    - Miguel Gatsi replied 4 years, 7 months ago
      
      CEREBELLUM, Scanning Objective, H&E stain.
      The cerebellum receives information from the sensory systems, the spinal cord, and other parts of the brain and then regulates motor movements. The cerebellum coordinates voluntary movements such as posture, balance, coordination, and speech, resulting in smooth and balanced muscular activity.
      MOLECULAR LAYER.
      The outer molecular layer is synaptic and therefore contains many axons of granule cells and and dendrites of the Purkinje cells with least density of cells.
      PURKINJE LAYER.
      The middle layer (Purkinje cell layer) consists of a single layer of large pear-shaped Purkinje cells.
      GRANULAR LAYER.
      The inner granular layer contains many, tightly packed granule cells and Golgi type II cells.
      WHITE MATTER.
      The inner medulla of white matter does not contain any cell bodies and therefore will stain a lighter colour in comparison to the grey matter cortex. It contains nerve fibers, supporting neuroglial cells and small blood vessels.

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