The Nervous system is a complicated set of nerves and cells that are called neurons, which transmit signals between the different body parts.
There are two main components: Central Nervous System and Periphery Nervous System.
Two main subdivisions: Somatic and Autonomic.
The Central Nervous System is made up of the brain, nerves, and the spinal chord. The Periphery Nervous System is composed of the sensory neurons, ganglia, which are clusters of neurons, and nerves that connect to each another.
The primary function of the nervous system is to control the different systems of our body such as the circulatory system, respiratory system, digestive system, etc.
The nervous system sends signals to different nerves around the body to perform different
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There are 3 main types of neurons: afferent neurons, efferent neurons, and interneurons.
Afferent neurons’ task is to transmit sensory signals to the central nervous system.
Efferent neurons transmit signals from the central nervous system to effectors like glands and muscles.
Interneurons make complex networks within the central nervous system to integrate and synthesize information received from afferent neurons.
The brain weighs around 3 pounds.
The brain contains around 100 billion neurons, which make up the control center of the body.
The spinal chord and brain together make up the central nervous system.
Some of the functions of the brain include, but are not limited to: consciousness, memory, planning, voluntary actions, maintenance of respiration, heart rate, blood pressure, and digestion.
The brain is the most complicated organ in the human body, humans to this day do not know much about the brain.
A long and thin cluster of neurons that carries information through the vertebral cavity of the spine starting at the medulla oblongata and continues all the way to the lumbar region of the spine.
Runs down the entire length of the
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The axon is encased in a connective tissue called the endoneurium.
Axons of the nerves are incorporated into groups called fascicles, which are covered in a connective tissue called the epineurium, which forms a complete nerve.
Protective coverings of the central nervous system.
Consist of 3 layers: dura mater, arachnoid mater, and pia mater.
The dura mater is the thickest and most damage-proof layer. It is made of irregular connective tissue. The dura mater possesses fibers and blood vessels. Dura mater protects the CNS.
The arachnoid mater is thinner and much lighter than the dura mater. It lines the inside of the dura mater. The arachnoid mater contains many thin fibers that connect to the pia mater.
The pia mater is a thin and light layer of tissue which can be found outside of the brain and spinal chord. It has a lot of blood vessels that feed the nervous tissue.
The cerebrospinal fluid fills the space that surrounds central nervous system.
It is formed from blood plasma by unique structures called choroid
The brain is an organ that regulates body functions, behaviors, and emotions. Neurons are the cells that fulfill these functions. How do neurons do this? A neuron plays an important role in the central nervous system. Why? Because neurons regulate how we think, feel, and control our body functions. A typical neuron has three parts: cell body, axon, and dendrites. When a neuron receives an electrical impulse, that impulse travels
The nervous system controls both voluntary action (like conscious movement) and involuntary actions (like breathing) and sends signals to different parts of the body. The central nervous system includes the brain, spinal cord, sensory organs, and all of the nerves that connect these organs to the rest of the body. Together, these organs are responsible for the control of the body and communication among its parts. The brain and spinal cord form the control center, also known as the central nervous system, where information is
The brain is a complex system of interconnected parts. It contains over one hundred billion “neurons” and trillions of supportive “glia” cells (Siegel, 2012, p. 15). For neurons and neural networks, what fires together wires together.
The human nervous system is divided into two parts, the central nervous system and the peripheral nervous system. The central nervous system, CNS, is just the brain and spinal cord. The peripheral nervous system, PNS, includes the nerves and neurons that extend outwards from the CNS, to transmit information to your limbs and organs, for example. Communication between your cells is extremely important, neurons are the messengers that relay information to and from your brain. Nerve cells generate electrical signals to transmit information.
The nervous system is a network of cells that take messages from the brain and spinal cord to other parts of the body. The nervous system is made up of the Central Nervous System and the Peripheral Nervous System. The Central Nervous System has two main parts; the brain and the spinal cord. While the Peripheral Nervous System has the Somatic and the Autonomic Nervous systems included within it.
The brain contains millions of tiny nerve cells, known as neurons and these neurons are joined and connected to a million more neurons. When these neurons form a series of interconnected neuron...
The nervous system is the most complex part of the body, as they govern our thoughts, feelings, and bodily functions. It is an important factor in science because it can lead to new discoveries for cures or diseases. The studies of the nervous system helped lower death rates from heart disease, stroke, accidents, etc. The nervous system is a network of neurons (nerve cells that sends information to the brain to be analyzed.
The brain consists of both neurons and glia cells. The neurons, which are cells housed in a cell body called a Soma, have branches which extend from them, referred to as dendrites. From these dendrites extend axons which send and receive impulses, ending at junction points called synapses. It is at these synapse points that the transfer of information takes place.
When a message comes to the brain from body parts such as the hand, the brain dictates the body on how to respond such as instructing muscles in the hand to pull away from a hot stove. The nerves in one’s skin send a message of pain to the brain. In response, the brain sends a message back dictating the muscles in one’s hand to pull away from the source of pain. Sensory neurons are nerve cells that carry signals from outside of the body to the central nervous system. Neurons form nerve fibers that transmit impulses throughout the body. Neurons consists of three basic parts: the cell body, axon, and dendrites. The axon carries the nerve impulse along the cell. Sensory and motor neurons are insulated by a layer of myelin sheath, the myelin helps
The nervous system is a network of cells that take messages from the brain and spinal cord to other parts of the body. The nervous system is made up of the Central Nervous System and the Peripheral Nervous System. The Central Nervous System has two main parts; the brain and the spinal cord. While the Peripheral Nervous System has the Somatic and the Autonomic Nervous systems included with in it.
The brain and spinal cord make up the central nervous system. The brain doesn't just control your organs, but also can think and remember. That part of the brain is called the mind.
The human body is very complex. It is like a job. You have to do a million things in one day to make it through the day. The body uses nine systems to do all of those jobs. They all have separate functions, but some work together. Each system is also made up of organs. There are many ways to care and protect the systems from the many different problems they can have. There are also many interesting facts about each system.
Human nervous system is divided into the Central Nervous System (CNS) and the Peripheral Nervous System (PNS). The CNS contains the brain and the spinal cord and it is responsible for receiving and processing information; initiating actions. On the other hand, The PNS consists of sensory and motor neurons; also it has two parts the somatic system and the autonomic system and its main role is to transmit signals between the CNS and the rest of the body. Human nervous system receives information from internal environment (our bodies) and external environment through our five senses, hearing, vision, smell, taste and touch. Also our system responds to different type of stimuli (response caused by a change in an organism’s environment) consistently.
Nervous system is one of the major organ systems that is responsible for the coordination of biological activities inside the body through cells called neurons. It is composed of the brain and spinal cord which are surrounded by protective layers of bone and membrane tissues called meninges. There are two major divisions in the nervous system; first one is the central nervous system (CNS) and the other being the peripheral nervous system (PNS). The CNS is composed of the brain, spinal cord, and retina while the PNS includes the sensory neurons, ganglia, and connecting neurons. The nervous system applies control using nerves; almost as if sending a message by a telephone. The nervous system is fast due to its electrical nature. The nerve cells in this system are connected with each other in a complex manner where the neural pathways would be possible. Neural
The nervous system is composed of all nerve tissue in the body. This organ system forms a communication and coordination network between all parts of the body. It plays a major role in everyday activities such as breathing, walking, and even blinking. It is made up of nerve tissues to receive and transmit stimuli to nervous centers and initiate responses. Neurons are nerve cells that transmit signals from one location in the body to another.