Wearing on Her Nerves: Exploring the Interrelation Between the Nervous and Muscular Systems

Group1: Wearing on Her Nerves: Exploring the Interrelation between the Nervous and Muscular Systems

Part 1;

1. What components of the nervous system are involved in physical sensation? How does sensory impulse move throughout the body?

Sensory neurons are involved with the physical sensations of the body. According to Martini et. al, in their book “Visual Anatomy and Physiology,” there are several different types of neurons responsible for the physical sensations. Physical sensations would be things such as pressure, pain, and heat. The mechanoreceptor classes of sensory receptors are responsible for things such as pressure, touch and vibrations are specifically called tactile receptors. Thermo receptors are responsible for detecting changes in temperature and nociceptors are responsible for such things as pain stimulation. Sensory neurons once stimulated would produce an action potential and thus propagate throughout the body in a direction toward the central nervous system via afferent sensory neurons to the bodies various networks of interneurons. Then the information would be relayed to the bodies various control centers based on the input received and which type of sensory neurons that were innervated (Martini et. al, 2011, p.394-490).

2. What components of the nervous system are involved in skeletal muscle movement? How does motor impulse move throughout the body? What is a “motor unit”?

The specific areas that are responsible for controlled muscles movement are generally sent down the motor unit pathway via the command sent from the motor strip on the precentral gyrus of the cerebrum. There are other places in the central nervous system such as the cerebellum that are responsible for fine tuning conscious control of muscle movement. The Hypothalamus is responsible for the everyday functioning for things such as eating, drinking and sexual activity. Places such as the cerebral cortex are responsible for planned movement. The motor...