Please enable JavaScript.

Coggle requires JavaScript to display documents.

LI (NERVE CELL, Central Nervous System, Peripheral systema nervosum,…

- - - - Structure: Dendrites, Soma, Nucleus, Axon, Myelin, Nodes of Ranvier, Axon Terminal
      - Function: Receive, Integrate, & Deliver Messages in the form of action potentials.
    - - Types of glial cells
        
        Schwan cells, astrocyte cells, ependymal cells
        
        •oligodendrocytes •Microglia
      - Function: from the myelin of nervous -as a protector→phagocytes -provides a suitable microenvironment for neuronal activity
- - - - Cerebral cortex
        
        spinal cord
        
        cerebellum
  - - - cerebrum
      - diencephalon
      - mesencephalon
      - pons
      - medulla oblongata
      - cerebellum
- - - - GANLION
        A ganglion is an enlarged collection of nerve cells (neurons) located in the peripheral nervous system. Shapes and sizes vary. The ganglia are in (1) dorsal rootganglia of the spinal cord, (2) cranial nerve root ganglia of n. trigeminal, n. facialist, n. vestibulokoklearis, n. vagus, and n. glossopharyngeus, (3) autonomic nervous system, and (4) enteric nervous system
        
        PACCINIAN CORPUSCLE
        Pacinian corpuscle (Paccini body) is a special sensory body. Apart from the skin, the body of this sensory nerve ending can also be found in the pancreas.
        
        MEISSNER CORPUSCLE
        Meissner corpuscle (Meissner body) is present in the skin servings within the papillary dermis layer.
        
        MOTOR END PLATE
        he motor end plates are the terminals of peripheral nerve fibers and are associated with skeletal muscle fibers or other effector cells such as myoepithelial exocrine glands.
    - - 1.System nerve somatic
        a. Cranial nerves
        Nerve organs Craniales have Which part of the organ consists from 12 pairs, eachgiven number in accordance numbering Number Roman:
      - . System nerves autosomus
        System nerve autonomous arrange networkand organsbodywhichno realized.Networkand organsbodywhicharrangedbysystem nerve autonomous is a vessel bloodandheart.System this consists on system nerve sympatheticandsystem nerve parasympathetic.Function from second system nerve this is each other reverse.
- - - - just 16 days after conception, the baby's neural plate in the womb has formed, this is the foundation of his brain and spinal cord. This neural plate grows longer and folds over itself, until these folds turn into grooves, and these grooves turn into the neural tube.
        
        after the neural tube closes, around the 6th or 7th week of pregnancy, the neural tube will bend and swell into three parts, namely the forebrain, midbrain, and hindbrain
        Then in the 8th week of pregnancy and beyond, these nerves make connections with each other, with muscles and other tissues, then with organs like your baby's eyes and ears.
        
        At the 12th week, the nerves begin to be able to send simple signals that stimulate the baby's reflexes. So, the baby can open, close, and roll his fingers.
        Babies can also squint their eye muscles and make sucking movements with their mouths. Around the 20th week, a protective, whitish coating called myelin begins to grow around the nerves of the fetus.
        
        myelin insulates nerves and speeds up their complex messaging system. This myelin continues to develop during pregnancy until the first year of your little one's life.
        At 28 weeks, the nerves are connected to the organs in the baby's body, so that your baby's sense of hearing, sight, smell and taste can begin to function. At this time, the fetus can recognize the sound of your breathing, heartbeat, and the rumbling of your digestion
        
        The fetus also begins to blink in response to bright light, and can even see colors. Then in the last trimester of pregnancy, brain development will accelerate because the weight has tripled.
        Deep grooves are starting to form in the baby's cerebrum to allow more surface area for brain cells to communicate with one another