Results for "**Glial Cells**"
Anatomy Encyclopedia Entry 1777669984
The human nervous system is a complex network of specialized cells, tissues, and organs that enables the transmission of electrical and chemical signals throughout the body, facilitating movement, sensation, perception, and control of bodily functions.
Health & MedicineAnatomy Encyclopedia Entry 1781694305
** The **Cerebral Cortex** is the outermost layer of the **brain**, responsible for processing sensory information, controlling movement, and facilitating thought, perception, and memory. **CONTENT:** ## Overview The **cerebral cortex**, also known as the **neocortex**, is the outermost layer of the **brain**, consisting of a thin layer of **neurons** and their supporting cells, called **glial cells**. It is the most developed part of the **brain** in humans and is responsible for processing sensory information, controlling voluntary movements, and facilitating higher-order cognitive functions such as thought, perception, and memory. The **cerebral cortex** is divided into four **lobes**: the **frontal lobe**, **parietal lobe**, **temporal lobe**, and **occipital lobe**, each with distinct functions and areas of specialization. The **cerebral cortex** is composed of six distinct layers of **neurons**, known as the **cortical layers**, which are arranged in a specific order. These layers are responsible for processing and transmitting information between different parts of the **brain**. The **cerebral cortex** is also home to a variety of **neuron types**, including **pyramidal cells**, **stellate cells**, and **granule cells**, each with unique functions and roles in processing and transmitting information. ## History/Background The study of the **cerebral cortex** dates back to the 19th century, when scientists such as **Paul Broca** and **Carl Wernicke** first described the relationship between specific areas of the **cerebral cortex** and language processing. However, it wasn't until the early 20th century that the **cerebral cortex** was fully mapped and understood. The development of **electroencephalography (EEG)** and **functional magnetic resonance imaging (fMRI)** allowed researchers to study the **cerebral cortex** in greater detail, revealing its complex and dynamic nature. ## Key Information The **cerebral cortex** is responsible for a wide range of functions, including: * **Sensory processing**: The **cerebral cortex** processes sensory information from the **senses**, including vision, hearing, touch, taste, and smell. * **Motor control**: The **cerebral cortex** controls voluntary movements, such as walking, talking, and writing. * **Cognitive functions**: The **cerebral cortex** is responsible for higher-order cognitive functions, such as thought, perception, and memory. * **Language processing**: The **cerebral cortex** is involved in language processing, including speech production and comprehension. The **cerebral cortex** is also home to a variety of **neurotransmitters**, including **dopamine**, **serotonin**, and **acetylcholine**, which play important roles in regulating mood, motivation, and other functions. ## Significance The **cerebral cortex** is a critical component of the **brain**, and its dysfunction is associated with a wide range of neurological and psychiatric disorders, including **stroke**, **traumatic brain injury**, **Alzheimer's disease**, and **schizophrenia**. Understanding the **cerebral cortex** is essential for the development of effective treatments and therapies for these conditions. INFOBOX: - **Name:** Cerebral Cortex - **Type:** Brain structure - **Date:** 19th century (first described) - **Location:** Outermost layer of the brain - **Known For:** Processing sensory information, controlling movement, and facilitating thought, perception, and memory TAGS: **Cerebral Cortex**, **Brain**, **Neocortex**, **Neurons**, **Glial Cells**, **Sensory Processing**, **Motor Control**, **Cognitive Functions**, **Language Processing**, **Neurotransmitters**, **Dopamine**, **Serotonin**, **Acetylcholine**
Health & MedicineAnatomy Encyclopedia Entry 1781604364
The human brain is a complex and intricate organ that serves as the center of the human nervous system, controlling thought, emotion, movement, and sensation.