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If they are neurons they have an axon, some cell types do communicate using gap-junctions.
Yes, some complex sensory organs ( in the retina and organ of Corti for example) do not have axons. These cells liberate transmitter from their soma directly onto postsynaptic neurons in proportion to the membrane potential change they experience.
What else can I help you with?
Do some neurons lack myelin?
Yes, some neurons in the central and peripheral nervous systems lack myelin. These unmyelinated neurons play a role in transmitting slower signals compared to myelinated neurons, and are important for functions such as pain perception and regulating autonomic functions.
What is the nerve cells job?
Nerve cells, or neurons, are responsible for transmitting electrical signals throughout the body. They help to relay information between the brain, spinal cord, and the rest of the body, allowing for sensory perception, movement, and communication between different parts of the nervous system.
What cells would not divide using mitosis?
Cells that do not divide using mitosis include red blood cells (erythrocytes) and neurons in the brain. Red blood cells lack a nucleus, and neurons undergo a different process called mitotic division or neurogenesis to replace themselves.
What phase of the cell cycle is suspect for terminal for neurons and red blood cells that they lose their ability to replicate?
Neurons and red blood cells are typically considered to be in the G0 phase of the cell cycle, which is a quiescent stage where cells exit the active cycle and no longer divide. In this phase, they have differentiated and lost the capacity to replicate. This lack of replication is crucial for their specialized functions, as neurons need to maintain stable connections and red blood cells must efficiently transport oxygen without undergoing division.
What type of tissue is not readily repaired if damaged?
Nervous tissue is not readily repaired if damaged. Unlike other tissues, such as epithelial or connective tissue, neurons have a limited ability to regenerate after injury due to their complex structure and the lack of mitotic activity. Damage to the central nervous system, in particular, often results in permanent loss of function because the regeneration of neurons is minimal or nonexistent.
Do some neurons lack myelin?
Yes, some neurons in the central and peripheral nervous systems lack myelin. These unmyelinated neurons play a role in transmitting slower signals compared to myelinated neurons, and are important for functions such as pain perception and regulating autonomic functions.
What are the functions of the neurons?
the function of neurons is to receive information, process it, and pass it on to other neurons, or muscles or endocrine/exocrine glands. I realize 'receive information, process it, and pass it on' is a giant and amorphous description, but the description of the behavior of organisms with neurons is also giant and amorphous.
What would life be like without neurons?
Neurons are the basic constituent of brain tissues. Without neurons person will be unable to do anything, to sense anything or to thing anything. Life would be extremely hard to imagine without the neurons. Neurons are part of nervous system.
Is longevity a characteristic of neurons?
yes longevity is a trait of neurons along with a high mebatolic rate and the lack of ability to divide (amitotic)
What causes MS?
Axons are located within the neurons and are extremely tiny. They receive information from a neighboring dendrite (also part of a neuron). The axon is surrounded by what is called a myelin sheath--which acts as a sealer for the axon. When the information in the form of electrical signals passes down the axon, the myelin sheath will inhibit the ions from escaping. However, in multiple sclerosis, the myelin on the action is degenerated and cannot perform its incubating function. This causes extreme slowing of the electrical signal, which in turn affects muscles weakness and poor coordination. Summed up: The myelin sheath is damaged and allows ions to escape the axon. This leads to weakness in muscle and lack of coordination.
Is longevity a special characteristic of neurons?
yes longevity is a trait of neurons along with a high mebatolic rate and the lack of ability to divide (amitotic)
Most neurons lack centrioles This observation explains?
the inability of most neurons to undergo cell division. Centrioles are required for the organization of the mitotic spindle during cell division. Since neurons lack centrioles, they are unable to divide and are primarily post-mitotic cells.
What happens to the neurons when there is a lack of oxygen?
When there is a lack of oxygen, neurons are unable to produce energy through aerobic metabolism. As a result, they switch to anaerobic metabolism, leading to the build-up of lactic acid and a decrease in ATP production. Prolonged oxygen deprivation can ultimately lead to cell death and irreversible damage to the neurons.
What is the purpose of wallerian degeneration?
Degeneration of the axon and myelin sheath distal to the injury site caused by the lack of nutrients.
Do sponges have nerves?
No sponges lack organized multicellular organs, such as nerves and muscles.
What is the nerve cells job?
Nerve cells, or neurons, are responsible for transmitting electrical signals throughout the body. They help to relay information between the brain, spinal cord, and the rest of the body, allowing for sensory perception, movement, and communication between different parts of the nervous system.
Effects of lack of socialization?
The inability to interact and communicate with others.
