Chapter 2: The Basics Of Excersizes Science Flashcards
Nervous system
One of the primary is a combination of billions of cells that communicate with one another within the body
Sensory function
The ability of the nervous system to notice changes in their external or internal environment. This is one of the three main functions of the nervous system
Integrative function
The ability that the nervous system has to interpret and analyze sensory information. This allows for adequate decision making and producing the correct response.
Motor function
This is a neuromuscular (Muscular and nervous system) Response to sensory information
Proprioception
This is the cumulative input to the CNS ( central nervous system) from all of the various mechanoreceptors that can sense limb movement and body position
Neuron
This is the functional unit of the nervous system the nervous system is made up of billions of this allows it to communicate outside with the environment as well as internally with itself
Sensory neurons (afferent)
This is a type of nerve cell that conducts impulses to the central nervous system from a sense organ
Interneurons
Interneurons send nerve in pulses between one another
Motor neurons (efferent)
The CNS or central nervous system is made up of your brain and spinal cord
Peripheral nervous system
The PNS or Peripheral nervous system branches out from your central nervous system to connect it with the rest of your body
Mechanoreceptors
Specialized receptors that respond to pressure inside of and transmit signals through sensory nerves
Central nervous system and Peripheral nervous system
The CNS or central nervous system is made up of your brain and spinal cord. The PNS or peripheral nervous system branches out from your central nervous system to connect it with the rest of your body.
Muscle spindles
These are sensory receptors that sit parallel to muscular fibers. These special spindles are able to detect the length of a muscle and how fast it changes length. This helps to regulate the contraction of muscles by way of the stretch reflex mechanism. Its purpose is to help prevent and protect over stretching that could lead to muscular damage
Golgi tendon organs
Golgi tendon organs or GTO is another type of specialized sensory receptor. They are found where tendons attached to skeletal muscular fibers. These receptors can sense the change in muscular tension and the rate that this tension changes. When you activate the Golgi tendon organ it will cause a muscle to relax. This is to help prevent injury from excess stress and contraction
Joint receptors
These receptors are located around the joint capsule. They respond to acceleration, deceleration, and pressure at the joint. They are able to sense extreme joint positions and send signals in order to prevent injuries.
