CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

Select the correct statement with respect to disorders of muscles in humans.

A
An overdose of vitamin D causes osteoporosis.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Rapid contractions of skeletal muscles cause muscle dystrophy.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Accumulation of urea and creatine in the joints causes their inflammation.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Failure of neuromuscular transmission in myasthenia gravis can prevent normal swallowing.
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D Failure of neuromuscular transmission in myasthenia gravis can prevent normal swallowing.
  • Myasthenia gravis is an autoimmune disorder in which autoantibodies bind to acetylcholine receptors on muscle cells and impairs the ability of the neurotransmitter acetylcholine to induce muscular contraction. This leads to fatigue, weakening and paralysis of skeletal muscles of mouth and throat which may prevent normal swallowing.
  • Gouty arthritis is caused either due to excessive formation of uric acid or inability to excrete it. It gets deposited in synovial joints and causes inflammation.
  • Osteoporosis is a disease in which bone loses minerals and fibres from its matrix. Major causative factors of osteoporosis are imbalances of hormones like calcitonin of thyroid, parathormone of parathyroids, sex hormones and deficiencies of calcium and vitamin D.
  • Muscular dystrophy is an inborn abnormality ( mutation of dystrophin gene) of muscles associated with dysfunction and ultimately with deterioration due to breakdown of dystrophin protein.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Endocrine Glands
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon