1.An extensive network of specialized cells that carry information to and from all parts of the body is called the nervous system.
2.The basic cell that makes up the nervous system and which receives and sends messages within that system is called a neuron.
3.The long tube-like structure that carries the neural message to other cells on the neuron is the axon.
4.On a neuron, the branch-like structures that receive messages from other neurons are the dendrites.
5. The cell body of the neuron, responsible for maintaining the life of the cell and containing the mitochondria is the soma.
6.The fatty substances produced by certain glial cells that coat the axons of neurons to insulate, protect, and speed up the neural impulse is the myelin. …show more content…
19.The autonomic nervous system division of the PNS consists of nerves which control all of the involuntarymuscles, organs, glands, and sensory pathway nerves.
20.The part of the ANS that is responsible for reacting to stressful events and bodily arousal is called the sympathetic division of the nervous system.
21.A machine designed to record the brain wave patterns produced by electrical activity of the surface of the brain is called a(n) electroencephalograph.
22. The part of the lower brain located behind the pons that controls and coordinates involuntary, rapid, fine motor movement is called the cerebellum.
23.The part of the limbic system located in the center of the brain, this structure relays sensory information from the lower part of the brain to the proper areas of the cortex and PROCESSES some sensory information before sending it to its proper area and is called the thalamus.
24. The larger swelling above the medulla that connects the top of the brain to the bottom and that plays a part in sleep, dreaming, left–right body coordination, and arousal is called the pons.
25. Reticular formation is an area of neurons running through the middle of the medulla and the pons, and slightly beyond, that is responsible for selective attention.
26. The hippocampus is a curved structure located within each temporal lobe, responsible for the formation of long-term
Neurons are the basic building blocks of the nervous system. These specialized cells are the information-processing units for the brain and are responsible for receiving and transmitting information. Each specific part of the neuron plays a role in the communication throughout the body of information. First, the Dendrites are treelike extensions at the beginning of a neuron that help increase the surface area of the cell body. These tiny protrusions receive information from other neurons and transmit electrical stimulation to the soma. The soma is where the signals from the dendrites are joined and then passed on. The nucleus and the soma do not play a role in the transmission of the neural signal. Instead, these two structures
The nervous system is made up of basic units called neurons. The main role of the neurons is to receive, integrate and transmit information throughout the body. There are some neuroglial cells found in nervous system aswell which provide support to the neurons by giving protection and nourishment Neurons have nerve processes that looks like finger like projections extended from the nerve cell body. They also contain axons and dendrites which enable them to transmit signals throughout the body. Normally, axon carry signals away from the cell body and dendrites carry signals toward the cell body according to Regina Bailey (2013). Neurons have three different shapes: bipolar, unipolar and multipolar where bipolar has two neuronal processes coming out of the cell body, unipolar has only one neuronal process coming out of the cell body and multipolar has many neuronal processes coming out of the cell body.
Neurons are information- processing units in the central nervous system that receive and transmit information. It is made up of an axon, dendrites and a cell body. The nucleus and cytoplasm are contained in the cell body. The axon starts from the cell body, dividing into smaller branches and then ends at the nerve terminals. The dendrites also branch from the cell body, receiving information from the other neurons. Axons from other neurons forms
The cell body comprises of the nucleus and other organelles (Ward, 2010). The nucleus contains the genetic code, and this is involved with protein synthesis (He, 2013). The dendrites receive information from other neurons which are located in a close proximity (Kalat, 1995). The terminal of an axon compresses into a disc-shaped structure (Gross, 2010). This is where chemical signals also known as a neurotransmitter permit interaction amongst neurons, by means of a minute gap named a synapse (Martin, Carlson & Buskit, 2013). Both neurons which form the synapse are referred to as a presynaptic synapse (prior to the synapse) and postsynaptic (after the synapse), reflecting the direction of information flow (from axon to dendrite), (He, 2013).
1. Neurons is a basic building block of the nervous system. The sensory nerves carry the message from body tissues to the brain and spinal chord to be processed. The motor neurons are then used to send instructions to the body tissue from the brain and spinal cord. Dendrites, which are connected to the body cell (soma) receive information and pass it through the axon. Myelin sheath covers the axon and helps speed the process. When triggered by a signals from our senses or other neurons, the neuron fires an impulse called the action potential. The resting potential is the neuron’s visual charge of positive
* Neurons are individual cells in the nervous system that receive, integrate, and transmit information.
The structure of a neuron consist of four main components dendrites, cell body also known as soma, synapse and axon. Dendrites collect signals coming in from other cells. The soma is responsible for assimilating signals coming in from the dendrites in order to create a signal traveling unidirectional through the axon. The axon stems from the soma, which
* Sensory neurons or Bipolar neurons carry messages from the body's sense receptors (eyes, ears, etc.) to the CNS. These neurons have two processes. Sensory neuron account for 0.9% of all neurons. (Examples are retinal cells, olfactory epithelium cells.)
The nervous system is a chain of interconnected nerve fibers which is constructed by the central nervous system and Peripheral nervous system. The job of the nervous system is to send messages from the brain and spinal cord to different parts of the body.
Neurons (also known as neurons, nerve cells and nerve fibers) are electrically excitable and the most important cells in the nervous system that functions to process and transmit information. Neurons have a large number of extensions called dendrites. They often look likes branches or spikes extending out from the cell body. It is primarily the surfaces of the dendrites that receive chemical messages from other neurons.
A neuron contains as mentioned above dendrites. Through many dendrites, the neuron receives signals from other neurones. The neuron passes this signal on, by most of the time one axon. This axon can travel a long,
The brain has a part called the cerebral cortex(gray matter) which is made up of 3 to 6 layers of neurons. A neuron has three parts namely axon, dendrites and cell body. Neurons are classified as principal(projection) neurons and interneurons. Principal neurons transmit information to other neurons in the brain and form excitatory synapses. Interneurons in the CNS transmit impulses locally and form inhibitory synapse. Two common types of pathways for these neurons include recurrent feedback pathways and feed-forward pathways.(Figure 2)
Information conveyed by the synapses on the dendrites is processed and projected from the axon. The axon is extraordinary, it is specialized for signal conduction to the next neuron. Axons vary in length, the ones in your brain are relatively short in comparison to the axons that run from your spinal cord down to your foot (about a meter long).