Please enable JavaScript.

Coggle requires JavaScript to display documents.

A 23 year old male patient demonstrating severe face and arm muscle spasms…

- - - - Central Nervous System
        
        Brain
        
        Spinal Cord
      - Neurons
        
        Multipolar
        
        Bipolar
        
        Unipolar
    - - Jaw Muscles
        
        Three Jaw Closing Muscles
        
        Masseter
        
        Temporalis
        
        Medial pterygoid
        
        Two jaw-opening muscles
        
        Lateral pterygoid
        
        Digastric
      - Neck Muscles
      - Chest Muscles
      - Back Muscles
      - Abdomen Muscles
    - - Acetylcholine
    - - Presynaptic membrane
  - - - Spinal Cord Primarily transmits nerve signals from the motor cortex to the body, and from the afferent fibers of the sensory neurons to the sensory cortex.
      - Frontal Lobe of Brain is parts of speech, Controls general movement.
      - Neuron of the nervous system conduct electrical impulses that serve as communication between sensory receptors, muscles and the brain and spinal cord.
        
        Multipolar neurons with single axon and many dendrites allow the integration of a great deal of information from other neurons.
        
        Bipolar neurons are sensory neurons for the transmission of sense. Such as smell, sight, taste, hearing, touch, balance and proprioception.
        
        Unipolar neurons carry information about touch, pain etc
      - In Excitation-contraction coupling muscle receives a neural signal and converts that signal into mechanical force after synapsing at the neuromuscular junction.
        
        The neurotransmitter acetylcholine diffuses which cause depolarization of the sarcolemma.
        
        The depolarized cardiomyocyte plasma membrane is linked to the rapid release of calcium ions from the sarcoplasmic reticulum into the cytosol to trigger sarcomeric actomyosin cross-bridge formation and the generation of contractile force.
      - NMJ convert the action potential from the presynaptic motor neuron into the contraction of the postsynaptic muscle fiber.
    - - Jaw Muscles work together for chew, speak or swallow etc.
        
        Medial pterygoid muscle help in eating by moving the lower jaw up, forward, and side-to-side.
        
        Masseter muscle helps a person bite down or chew.
        
        Temporalis muscle lift the lower jaw in order to bite or close the jaws.
        
        Lateral pterygoid muscle is to pull the head of the condyle out of the mandibular fossa.
        
        Digastric muscle is involved in speaking, swallowing, chewing and breathing etc.
      - Neck muscles helps in movement of neck or head.
      - The chest muscles assist in moving the arms across the body and up and down, as well as other movements like flexion, adduction, and rotation.