Nervous System

• It receives information from sensory receptors, processes it, and sends out commands to effector organs (muscles or glands).
• The brain is the control center of the nervous system.
• The spinal cord connects the brain with nerves that carry messages between the central nervous system and other parts of the body.
• The nervous system is divided into the central nervous system (CNS) and peripheral nervous system (PNS).
• The spinal cord connects the brain with nerves that carry messages throughout the body.
• The PNS includes all other nerves outside the CNS.
• Nerves are bundles of nerve fibers called neurons.
• The CNS consists of the brain and spinal cord.
• Dendrites receive signals from neighboring cells.
• Neurons transmit electrical signals between different parts of the body.
• Neurons have three main regions: dendrites, cell body, axon.
• The PNS includes all the nerves outside the CNS.
• The PNS consists of all the nerves outside the CNS.
• Nerves are bundles of axons surrounded by connective tissue sheaths called neurilemma.
• Axon carries electrical impulses away from the cell body to another cell or organ.
• Neurons transmit electrical signals through their cell membranes.
• Neurons transmit electrical signals to communicate information within the nervous system.
• There are three types of neurons: sensory, motor, and interneuron.
• Axons carry impulses away from the cell body to another neuron or muscle fiber.
• Neurons have three main regions: cell body, dendrites, and axon.
• Axons carry impulses away from the cell body to another neuron or muscle fiber.
• The PNS carries sensory input from receptors to the CNS, as well as motor output from the CNS to effector organs such as muscles or glands.
• Axon is an extension of the cell body that carries impulses away from it.
• Neurons communicate through synapses, which are gaps between two neurons.
• Sensory neurons carry information to the central nervous system (CNS).
• Dendrites receive signals from other cells and transmit them to the cell body.
• Sensory neurons receive stimuli from receptors and send impulses to the CNS.
• Synapse is where one neuron communicates to another by releasing chemicals into the synaptic cleft, which then bind to receptors on the next neuron's dendrite.
• Axons can be myelinated or unmyelinated.
• There are three types of neurons: sensory neurons, interneurons, and motor neurons.
• Motor neurons carry impulses away from the CNS to effectors such as muscles or glands.
• Synaptic vesicles contain neurotransmitters, chemicals released by one neuron to stimulate another.
• Synapses are gaps between two neurons where neurotransmitters pass messages across.
• Myelin is formed by Schwann cells (in vertebrates) or oligodendrocytes (in mammals).
• Myelin sheath surrounds axons and speeds up signal transmission.
• Motor neurons carry messages away from the CNS to muscles or glands.
• Dendrite is an extension that receives information from other cells.
• Glial cells support and protect neurons by providing nutrients and removing waste products.
• Dendrite receives messages from other cells and transmits them to the cell body.
• Interneurons connect sensory neurons with motor neurons within the CNS.