(minte)
creier
the body part that is inside our head controlling how we feel, think, move, etc.
The brain is the complex and intricate organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It controls and coordinates all bodily functions, including sensory perception, motor activity, thought, and emotion. The brain is made up of billions of interconnected neurons that communicate with each other through electrical and chemical signals, forming neural networks that enable learning, memory, and cognitive processes. It is protected by the skull and nourished by the circulatory system, and its proper functioning is essential for maintaining health and survival.
Informații Gramaticale:
(fibră musculară)
fibră
any strand of muscle or nervous tissues
In the nervous system, fiber refers to the long, thin extensions of neurons that transmit electrical impulses to other neurons or to muscles and glands. These fibers, also called axons, are covered in a protective sheath called myelin, which helps to speed up the transmission of impulses. The myelin sheath is produced by specialized cells called oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. Damage to the myelin sheath, such as in the case of multiple sclerosis, can cause disruptions in nerve impulse transmission and lead to a range of neurological symptoms, including muscle weakness, numbness, and vision problems.
(cerebelul)
măduva spinării
the inner part of the spine containing a mass of nerves that connects the brain to almost all the body parts
The spinal cord is a long, thin, tubular bundle of nerves that runs from the base of the brain to the lower back. It is part of the central nervous system and serves as the main pathway for transmitting signals between the brain and the rest of the body. The spinal cord is protected by the vertebral column and is composed of grey and white matter. Grey matter contains cell bodies and dendrites of neurons, while white matter contains myelinated axons that transmit signals up and down the spinal cord. The spinal cord is responsible for many important functions, including reflex actions, sensory processing, and motor control. Damage to the spinal cord can result in paralysis, loss of sensation, and other serious health problems.
Informații Gramaticale:
(neuroni intercalari)
interneuron
a neuron that acts as an intermediary between sensory neurons and motor neurons, or between other interneurons.
An interneuron, also known as an association neuron, is a vital component of the nervous system found within the brain and spinal cord. It acts as a bridge between sensory and motor neurons, facilitating communication and coordination within the neural network. Interneurons receive signals from sensory neurons and transmit them to other interneurons or motor neurons, enabling the integration and processing of information. They play a crucial role in modulating and refining neural pathways, allowing for complex sensory perception, motor control, and cognitive functions. With their diverse connections and ability to form intricate circuits, interneurons contribute to the overall complexity and functionality of the nervous system.
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