What is the part of the neuron that contains the nucleus and structures that maintain it and keep it functioning?
Cell body. Also known as a soma, the cell body is the core section of the neuron. The cell body contains genetic information, maintains the neuron's structure, and provides energy to drive activities. Like other cell bodies, a neuron's soma contains a nucleus and specialized organelles.
Which part of a neuron contains the material necessary to keep it alive?
Neurons have three main sections. The cell body is the part of the neuron that contains everything cells need to stay alive and healthy. Dendrites are the parts of the neuron that receive information from other neurons. The axon is the main branch that grows from the cell body.
Which part of the neuron is responsible for maintaining the life of the cell?
Ch 2 Psychology Terms and Definitions
| Question | Answer |
|---|---|
| Dendrites | Branch-like structures that receive messages from other neurons |
| Soma | The cell body of the neuron, responsible for maintaining the life of the cell |
| Axon | Long tube-like structure that carries the neural message to other cells |
What part of the neuron is where genetic material is stored?
nucleus The nucleus of a neuron is where genetic material is stored.
What does the axon do in a neuron?
Each neuron in your brain has one long cable that snakes away from the main part of the cell. This cable, several times thinner than a human hair, is called an axon, and it is where electrical impulses from the neuron travel away to be received by other neurons.
What do dendrites do in a neuron?
A dendrite (tree branch) is where a neuron receives input from other cells. Dendrites branch as they move towards their tips, just like tree branches do, and they even have leaf-like structures on them called spines.
Why is the axon important?
From the broadest perspective, the function of axons is to carry electrical impulses that are the means of communication within the brain and between the brain and the rest of the body.
What is the axon?
Each neuron in your brain has one long cable that snakes away from the main part of the cell. This cable, several times thinner than a human hair, is called an axon, and it is where electrical impulses from the neuron travel away to be received by other neurons.
What keeps the cell alive?
2:153:21Cell Components- (The small organelles that keep the cell alive)YouTube
What are Schwann cells and what do they do?
Schwann cells (SCs) are the major glial cell type in the peripheral nervous system. They play essential roles in the development, maintenance, function, and regeneration of peripheral nerves. In the mature nervous system, SCs can be categorized into two major classes: myelinating and nonmyelinating cells.
What is the role of dendrites?
Dendrites are appendages that are designed to receive communications from other cells. They resemble a tree-like structure, forming projections that become stimulated by other neurons and conduct the electrochemical charge to the cell body (or, more rarely, directly to the axons).
What is the function of the node of Ranvier in a neuron?
node of Ranvier, periodic gap in the insulating sheath (myelin) on the axon of certain neurons that serves to facilitate the rapid conduction of nerve impulses.
What is axon and dendrites?
Axon – The long, thin structure in which action potentials are generated; the transmitting part of the neuron. After initiation, action potentials travel down axons to cause release of neurotransmitter. Dendrite – The receiving part of the neuron.
What does the axon terminal do?
Each terminal holds a synapse where neurotransmitters send their messages and where messages are received. Simply put, axons allow nerve cells to send electrical and chemical messages to other nerve, gland, and muscle cells using this internal communication process.
What does the dendrites do in a neuron?
A dendrite (tree branch) is where a neuron receives input from other cells. Dendrites branch as they move towards their tips, just like tree branches do, and they even have leaf-like structures on them called spines.
What is a dendrite in a neuron?
A dendrite (tree branch) is where a neuron receives input from other cells. Dendrites branch as they move towards their tips, just like tree branches do, and they even have leaf-like structures on them called spines.
Which of the following parts of a cell is living?
Nucleus, cytoplasm, and mitochondria are the living parts of the cell because they are the components of the protoplast of the cell and help in carrying out various cellular metabolic activities.
What does the Golgi apparatus do?
The Golgi apparatus, or Golgi complex, functions as a factory in which proteins received from the ER are further processed and sorted for transport to their eventual destinations: lysosomes, the plasma membrane, or secretion. In addition, as noted earlier, glycolipids and sphingomyelin are synthesized within the Golgi.
What does the axon terminal do in a neuron?
Each terminal holds a synapse where neurotransmitters send their messages and where messages are received. Simply put, axons allow nerve cells to send electrical and chemical messages to other nerve, gland, and muscle cells using this internal communication process.
What is the role of axon?
axon, also called nerve fibre, portion of a nerve cell (neuron) that carries nerve impulses away from the cell body. A neuron typically has one axon that connects it with other neurons or with muscle or gland cells. Some axons may be quite long, reaching, for example, from the spinal cord down to a toe.
What does the Schwann cell do in a neuron?
Schwann cells (SCs) are the main glial cells of the peripheral nervous system which wrap around axons of motor and sensory neurons to form the myelin sheath.
What are Schwann cells and nodes of Ranvier?
Schwann cell are cells in the peripheral nervous system that synthesize the myelin sheath around neuronal axons. Node of Ranvier are the periodic gap in the insulating myelin sheath on the axon of neurons that bring about the rapid conduction of nerve impulses.
What is the function of the nodes of Ranvier?
These are the gaps formed between the myelin sheath where the axons are left uncovered. Because the myelin sheath is largely composed of an insulating fatty substance, the nodes of Ranvier allow the generation of a fast electrical impulse along the axon. This rapid rate of conduction is called saltatory conduction.
What does the myelin sheath do in a neuron?
Myelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances. This myelin sheath allows electrical impulses to transmit quickly and efficiently along the nerve cells.
What is an axon in a neuron?
Each neuron in your brain has one long cable that snakes away from the main part of the cell. This cable, several times thinner than a human hair, is called an axon, and it is where electrical impulses from the neuron travel away to be received by other neurons.
What is the function of axon?
axon, also called nerve fibre, portion of a nerve cell (neuron) that carries nerve impulses away from the cell body. A neuron typically has one axon that connects it with other neurons or with muscle or gland cells.
What makes a cell alive?
All living organisms (whether they are bacteria, archaea or eukaryote) share several key characteristics, properties or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation (including homeostasis), energy processing, and evolution with adaptation.
What is needed by the cell to survive?
To survive, every cell must have a constant supply of vital substances such as sugar, minerals, and oxygen, and dispose of waste products, all carried back and forth by the blood cells. Without these substances, cells would die in a very short period of time.
How does the ER and Golgi work together?
The Golgi complex works closely with the rough ER. When a protein is made in the ER, something called a transition vesicle is made. This vesicle or sac floats through the cytoplasm to the Golgi apparatus and is absorbed.
What does the vesicle do?
Vesicles can help transport materials that an organism needs to survive and recycle waste materials. They can also absorb and destroy toxic substances and pathogens to prevent cell damage and infection.