09/20/2024
Fun Fact Friday: Info on the Nervous System
𝑻𝒉𝒆 𝑵𝒆𝒓𝒗𝒐𝒖𝒔 𝑺𝒚𝒔𝒕𝒆𝒎
An equine's nervous system includes the brain, spinal cord and a complex network of nerves. It is an extremely important system that sends messages throughout the body, including memories, movements, feelings and thoughts. Here are some facts about the equine nervous system.
🧠 The nervous system can be divided into two parts. The central nervous system (CNS) includes the brain and spinal cord. It is the "root" of the system. Everything else is part of the peripheral nervous system (PNS) which are the "branches" that extend throughout the body.
🧠 Both the CNS and PNS contain billions of neurons, which are nerve cells. Neurons connect to one another and communicate through an electrical signal.
🧠 Neurons can perform both simple and complex tasks. Sensory neurons provide the brain with information on the five sense. They also transmit info about balance, proprioception and pain. Motor neurons respond to the stimuli from sensory neurons and control voluntary movements, especially muscle movement.
🧠 The nervous system also controls unconscious body functions such as heart rate, respiration and digestion. This is called the autonomic nervous system.
🧠 The brain includes three parts known as the brain stem, cerebrum and cerebellum. In horses, the brain weight 1.5 pounds, which is only half the size of a human brain.
🧠 There are many diseases that can affect an equine's nervous system, including but not limited to EPM, rabies, tetanus, WNV, EEE and WEE. It is important to discuss neurologic disease prevention with your veterinarian.