"The nervous system is the highly complex part of an animal that coordinates its actions and sensory information by transmitting signals to and from different parts of its body."
The study of the structure and function of the nervous system.
Basic structure and function of the nervous system: Introduction to the nervous system, including the parts of the central and peripheral nervous system, as well as the basic functions of neurons and neuroglia.
The brain: Overview of the different parts of the brain, including the cerebrum, cerebellum, and brainstem. Detailed discussion on the different lobes of the brain and their corresponding functions.
The spinal cord: Anatomy and function of the spinal cord, including the different segments and their corresponding sensory and motor functions.
The neuron: Detailed discussion on the structure and function of neurons, including the different types of neurons and their corresponding functions in the nervous system.
Neurotransmitters: Introduction to neurotransmitters, including their different types and functions in the nervous system. Discussion on different disorders related to neurotransmitters such as Parkinson's disease.
The action potential: In-depth discussion on the action potential, including the stages of depolarization, repolarization, and hyperpolarization. Importance of its propagation in the nervous system.
The sensory systems: Overview of the different sensory systems, including the visual, auditory, olfactory, gustatory, and somatosensory systems. In-depth discussion on how each system processes sensory information.
The motor systems: Overview of the different motor systems, including the somatic and autonomic nervous systems. Detailed discussion on how each system controls movement and maintains homeostasis.
The endocrine system: Overview of the endocrine system and its relationship with the nervous system. Detailed discussion on different hormones and their corresponding functions in the body.
Brain imaging techniques: Introduction to different brain imaging techniques, including MRI, CT scan, and PET scan. Their applications in diagnosing neurological disorders and research.
"Nervous tissue first arose in wormlike organisms about 550 to 600 million years ago."
"The vertebrate nervous system consists of two main parts, the central nervous system (CNS) and the peripheral nervous system (PNS)."
"The central nervous system (CNS) consists of the brain and spinal cord."
"The peripheral nervous system (PNS) consists mainly of nerves, which are enclosed bundles of the long fibers or axons, that connect the CNS to every other part of the body."
"Nerves that transmit signals from the brain are called motor nerves or efferent nerves."
"The PNS is divided into three separate subsystems, the somatic, autonomic, and enteric nervous systems."
"The sympathetic nervous system is activated in cases of emergencies to mobilize energy."
"The parasympathetic nervous system is activated when organisms are in a relaxed state."
"The enteric nervous system functions to control the gastrointestinal system."
"At the cellular level, the nervous system is defined by the presence of a special type of cell, called the neuron."
"Neurons send these signals in the form of electrochemical impulses traveling along thin fibers called axons."
"The connections between neurons can form neural pathways, neural circuits, and larger networks that generate an organism's perception of the world and determine its behavior."
"Along with neurons, the nervous system contains other specialized cells called glial cells (or simply glia), which provide structural and metabolic support."
"The only multicellular animals that have no nervous system at all are sponges, placozoans, and mesozoans."
"The medical specialty of neurology studies disorders of the nervous system and looks for interventions that can prevent or treat them."
"In the peripheral nervous system, the most common problem is the failure of nerve conduction."
"Demyelinating disorders such as multiple sclerosis and amyotrophic lateral sclerosis."
"Neuroscience is the field of science that focuses on the study of the nervous system."
"The size of the nervous system ranges from a few hundred cells in the simplest worms, to around 300 billion cells in African elephants."