Question

Myasthenia gravis is (a) auto immune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle (b) progressive degeneration of skeletal muscle mostly due to genetic disorder (c) rapid spasms (wild contractions) in muscle due to low $\mathrm{Ca}^{++}$ in body fluid (d) inflammation of joints

Name: Problem 141, Chapter 20: Objective Biology for NEET
Uploaded: 2021-10-24T07:20:17-08:00
Duration: 1 min 34 s
Channel: Qudsiya Anis
Description: Myasthenia gravis is (a) auto immune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle (b) progressive degeneration of skeletal muscle mostly due to genetic disorder (c) rapid spasms (wild contractions) in muscle due to low Ca^++ in body fluid (d) inflammation of joints

    Myasthenia gravis is
(a) auto immune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle
(b) progressive degeneration of skeletal muscle mostly due to genetic disorder
(c) rapid spasms (wild contractions) in muscle due to low $\mathrm{Ca}^{++}$ in body fluid
(d) inflammation of joints

Objective Biology for NEET

Rajiv Vijay 1st Edition

Chapter 20, Problem 141

Instant Answer

Solved by Expert Qudsiya Anis

10/24/2021

Step 1

Myasthenia gravis is a chronic autoimmune disorder that causes weakness in the skeletal muscles, which are the muscles your body uses for movement. The weakness gets worse after periods of activity and improves after periods of rest. These muscles are responsible Show more…

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Myasthenia gravis is (a) auto immune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle (b) progressive degeneration of skeletal muscle mostly due to genetic disorder (c) rapid spasms (wild contractions) in muscle due to low $\mathrm{Ca}^{++}$ in body fluid (d) inflammation of joints

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Key Concepts

Myasthenia Gravis

Myasthenia gravis is an example of an autoimmune disorder in which the immune system produces antibodies that interfere with the normal function of the neuromuscular junction. This interference leads to symptoms such as progressive muscle fatigue, weakness, and in some cases, paralysis, particularly of skeletal muscles.

Autoimmune Disorders

Autoimmune disorders occur when the immune system mistakenly targets the body’s own tissues. In these conditions, autoantibodies or immune cells attack specific cellular components, which can lead to a variety of symptoms depending on the tissue affected.

Neuromuscular Junction

The neuromuscular junction is the critical synapse where motor neurons stimulate muscle fibers to contract. Proper functioning of this junction is essential for voluntary muscle movements, and its impairment can lead to muscle weakness and fatigability.

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