Delta is a type of fibre that transmits signals that are interpreted and perceived as pain.
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Delta fibres</h3>
A delta fibres (also known as A fibres) are a type of sensory fibre. They respond to cold and pressure stimuli, and as nociceptors, their stimulation is perceived as fast/first pain input. Because they are thinly myelinated, they transmit impulses quicker than unmyelinated C fibres but slower than other, thicker myelinated "A" class fibres.
Structure
They have myelinated axons that are thin (2 to 5 m in diameter) and have a moderate conduction velocity, or speed at which a nerve signal moves (2 to 30 m/s). These nerve fibres make up the afferent portion of the reflex arc that causes the body to "draw away" from noxious stimuli because they are linked to acute (sharp) pain (e.g. retracting your hand away from a hot stove). A part of A fibres is also linked to pressure and temperature perception (also known as "cold receptors" in mammals). Contrarily, slow-conducting, unmyelinated C fibres convey gradual, scorching pain.
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Answer:
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Answer:
c. Vitamin B12 deficiency
Explanation:
Vitamin B12 deficiency is the cause of many diseases, from anemia to thrombosis. This deficiency is not common in the US, however, it is easily caused by inadequate gastric acid secretion secondary to gastric resection, use of drugs that suppress gastric acid, or gastric infection by Helicobacter pylori.
Vitamin B12 is essential for red blood cell formation, integrity and maturation. In their absence, they increase in volume. In the bone marrow - where they are produced - the number of cells increases so much that the appearance simulates that of leukemias.
It is a necessary vitamin for the development and maintenance of nervous system functions. Without it, the myelin that covers the nerves (as the protective cap does with the electrical wires) suffers wear that is called demyelination, a process that occurs in both peripheral nerve neurons and those in the white matter of the brain.
The main source of B12 is in animal foods. But to absorb it, the digestive tract depends on intrinsic factors present in a special group of stomach cells (parietal cells) and receptors located in the ileum.
Answer:
George
Explanation:
This is an amazing example of a SMART goal because it IS Specific, explaining what he is doing to loose weight, Measurable,being able to go a certain distance and building that up, Attainable, because it is far more easy to do things in groups with a team behind you encouraging you, Relevant, because it is a form of exercise, and he is trying to loose weight, and Timely, he meets on certain days and times so he knows when to do his activity
Answer:
Life Roles (mx) All the decisions we make are influenced by the roles we play. Furthermore, our roles are also intrinsically intertwined with our strengths and weaknesses. Your life roles may include being a parent, coach, employee, boss, friend, colleague, son, daughter, mentor, accountant, lawyer, doctor, teacher, blogger, partner, student, ...
Explanation:
