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Mechanism of nerve conduction?
Nerve conduction involves the transmission of electrical impulses along the length of a nerve fiber. When a nerve is stimulated, sodium ions rush into the nerve cell, causing a change in electrical charge. This creates an action potential that travels down the nerve fiber, activating adjacent areas and allowing the signal to be transmitted. Once the impulse reaches its destination, neurotransmitters are released to stimulate the next nerve cell or muscle fiber.
What is the function of stratum basale?
This is the deepest layer of the skin structure and, as such, acts as stem cells since they are the least differentiated or least specific type of skin cell. As they migrate upward, environmental factors and neighboring cells increasingly cause them to become more specific cell types. Ocassionally called the "basement membrane," found to be essential for proper healing after thermal injuries to the skin. Was eventually found to be the reason why earlier attempts at skin grafts using only upper skin cells were found not to be effective in 3-rd degree full thickness burns. Modern skin grafts now use a layer of these stratum g. cells on the artificial skin, followed by other cells added later. The result has been a marked improvement in the rate of successful skin grafts.
Which nerve fiber do impulses travel slowly?
Unmyelinated nerve fibers conduct impulses more slowly than myelinated nerve fibers. Myelinated nerve fibers have a fatty substance called myelin sheath that allows for faster transmission of impulses compared to unmyelinated fibers without this sheath.
What is the role of Schwann cells in forming the myelin sheath?
Schwann cells are responsible for wrapping around nerve fibers in the peripheral nervous system to form the myelin sheath. This insulating layer helps in the rapid conduction of nerve impulses along the nerve fiber. Schwann cells also provide support and maintain the health of the nerve fiber.
What is the significance of the node of Ranvier in the conduction of nerve impulses?
The node of Ranvier plays a crucial role in the conduction of nerve impulses by allowing for faster and more efficient transmission of electrical signals along the nerve fiber. This is because the gaps at the node of Ranvier help to regenerate the electrical signal, allowing it to travel more quickly down the nerve fiber.
A unique touch receptor formed from a stratum basale cell and a nerve fiber is a?
merkel cell
Unique touch receptor formed from stratum basal cell?
A unique touch receptor formed from stratum basale cell (and a nerve fiber) is a merkel cell.
What is a unique touch receptor formed from a stratum basale cell and a nerve fiber?
The skin, all 6-10 lb. (~3-4 kg) and 20 square feet in an adult, is a giant, washable, stretchable, tough, water-proof sensory apparatus covering your whole body. One of the endings that detect things is a encapsulated nerve ending formed by the tiny nerve cell of a dorsal root ganglion cell in next to a Merkel cell found in the basal layer hairy skin, in hair follicles, and in oral and anal mucosa.This called the Merkel disc and is a sensory receptor for pressure and texture information.
What are the names of the 2 ions necessary to create an electric current in a nerve fiber?
potassium
What is required to maintain nerve fiber sheath?
required to maintain nerve fiber sheath
What is the difference between the contour and magnitude of single nerve fiber and nerve trunk?
What is the difference between the contour and magnitude of single nerve fiber and nerve trunk?
What are the layers of the skin?
The layers of the skin are the dermis, epidermis, and hypodermis. Epidermis, dermis, subcutaneous (fat)Not all professions recognize the subcutaneous as a layerThe epidermis, the dermis, and the fatty region. The epidermis is the outermost and thinnest layer. The dermis is below the epidermis and has muscles, nerve cells and blood vessels. The fatty region swells up when you gain weight. I hope this helped anyone.The epidermis is divided into several layers where cells are formed through mitosis at the innermost layers. They move up the strata, changing shape and composition as they differentiate and become filled with keratin. They eventually reach the top layer, called the stratum corneum, consisting of approximately 15-350 layers of dead cells strengthened and made water-resistant by the keratin.So right there we've got anywhere from 15-350 layers in the epidermis alone.Assuming you meant the outer skin, anywhere from 15-350 layers would be correct, depending on various factors. However, that still has tons of layers of the dermis and hypodermis underneath it.We just arbitrarily divide these sets of layers into 3 "layers".The epidermis has five layers; strautm germinativum (or basal layer), stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum.1. stratum corneum2. stratum lucidum3. stratum granulosum4. stratum spinosum5. stratum germinativum6. dermisIt's actually 5 layers. Starting from the top is the stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum and lastly stratum germinativum.Stratum corneum Stratum licidum Stratum granulosum Stratum spinosum Stratum basale Papillary Layer Reticular Layer1. Epidermis is the most superficial layer of the skin and rests on the dermis. It consists of 5 epithelial tissue layers, Which are Stratum Corneum, Stratum Lucidum, Stratum Granulosum, Stratum Spinosum, and Stratum Basale.2. Dermis, which is a layer of connective tissue, is responsible for structural strength and flexibility of the skin. It has two layers, which are Papillary Layer, and Reticular Layer.3. Subcutaneous Tissue is the third, but not actually part of the skin. It is Loose Connective Tissue that attaches the dermis to underlying structures.The three layers of human skin are:EpidermisDermisSubcutaneous tissueThe epidermis is the outer/visible layer. The epidermis consists of 5 layers in itself. From top to bottom these layers are: stratum corneum, stratum licidum, stratum granulosum, stratum spinosum, and on bottom, stratum basale.The dermis is made up of three types of tissue (throughout, not in layers): collagen, elastic tissue, and reticular fibers. The two layers of the dermis are the papillary and reticular layers.The subcutaneous tissue is a layer of fat and connective tissue in which there are larger blood vessels and nerves. This layer regulates the temperature of both the body and the skin itself.In descending order from the surface: ?epidermis, dermis and hypodermis.stratum Basalestratum Spinosumstratum Granulosumstratum Licidumstratum Corneumthe order is from bottom layer to top. you can remember the order with the acronym of, Can Lucy Give Some BloodSkin has three layers: epidermis, dermis and sub-cutaneous connective tissue. The epidermis is made of 5 stratums.Bottom to top:stratum basalestratum spinosumstratum granulosumstratum licidumstratum corneumThere are actually two main layers of skin, the dermis and the epidermis.The epidermis consists of five sublayers: Stratum basale, stratum spinosum, stratum granulosum, stratum lucidium, and stratum corneum.There are not three layers to the skin there are two the epidermis (comprised of the stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale) and the dermis. Bad question!Skin Anatomy, Layers of Skin:There are three (3) main layers of skin. From bottom to top the layers are named:HypodermisDermisEpidermisThe epidermis is the outer layer of skin and contains 5 sublayers. From bottom to top the layers are named:- stratum basale- stratum spinosum- stratum granulosum- stratum licidum- stratum corneumI suppose Fur (hair) could be the fourth you are referring to....The epidermis and the dermis.epidermas on top dermis in middle and subcutaneous on bottomThe top layer is the epidermis. The middle layer is the dermis. The bottom layer is the hypodermis. dermis and epidermisepidermis and dermisdermis, epidermis and subcutaneous layers.ugly ugly ugyThe dermis (inner layer) and the epidermis (outer layer) tennise
Mechanism of nerve conduction?
Nerve conduction involves the transmission of electrical impulses along the length of a nerve fiber. When a nerve is stimulated, sodium ions rush into the nerve cell, causing a change in electrical charge. This creates an action potential that travels down the nerve fiber, activating adjacent areas and allowing the signal to be transmitted. Once the impulse reaches its destination, neurotransmitters are released to stimulate the next nerve cell or muscle fiber.
What is the function of stratum basale?
This is the deepest layer of the skin structure and, as such, acts as stem cells since they are the least differentiated or least specific type of skin cell. As they migrate upward, environmental factors and neighboring cells increasingly cause them to become more specific cell types. Ocassionally called the "basement membrane," found to be essential for proper healing after thermal injuries to the skin. Was eventually found to be the reason why earlier attempts at skin grafts using only upper skin cells were found not to be effective in 3-rd degree full thickness burns. Modern skin grafts now use a layer of these stratum g. cells on the artificial skin, followed by other cells added later. The result has been a marked improvement in the rate of successful skin grafts.
Why a peripheral nerve such as the sciatic nerve can contain nerve fiber from several spinal nerves?
The reason why a peripheral nerve such as the sciatic nerve can contain nerve fiber from several spinal nerves is owing to nerve plexuses. These are networks of nerves all tangled together and found mostly in the limbs.
What is the site where the muscle fiber and nerve fiber meet called?
Well of course they meet at the neuromuscular junction
What cause a nerve impulse move along the nerve fiber?
Electrical diferences.
