Disorders of muscular and skeleton system
Answers
Disorders of muscular and skeleton system :
★ Myasthenia gravis :
Auto immune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle.
★ Tetany :
It is caused due to low blood calcium and is characterized by rapid or wild spasms.
★ Arthritis :
It is painful stiffness and inflammation of joints caused by infection, allergy, deficiency or hormonal imbalance.
Arthritis is of three types :
1. Rheumatoid Arthritis :
- It is caused by inflammation of synovial membrane caused by bacterial infection, allergy or hormonal imbalance.
- A completely damaged joint is replaced surgically. Staphylococcus bacteria which causes this also effects heart valves (Rheumatic heart disease).
2. Osteoarthritis :
- It is a form of arthritis in which one of many joints undergo degenerative changes like loss of articular cartilage and proliferation of bone and cartilage in the joint
- lt is very common in old age, where degeneration of hyaline cap by the regular use and deposite of calcium makes the surface hard.
3. Gouty Arthrititis or Gout :
- It is a disease associated with an inborn error of uric acid metabolism that increases its production or interferes with uric acid excretion.
★ Muscular dystrophy :
Progressive degeneration of skeletal muscle mostly due to genetic disorder
★ Osteoporosis :
Age related disorder characterised by decreased bone mass and increased chances of fractures. Decreased levels of estrogen is a common cause in woman.
★ Strain :
Twisting of tendons between bone and muscle. It is less severe.
★ Sprain :
It is twisting, stretching or tearing of ligament. Ligament has poor power of regeneration It causes severe pain. It is a minor disorder, which can however, become chronic.
★ Prolapsed Disc :
Displacement of intervertebral disc from its normal position. It is due to mechanical injury or wrong sitting posture. It causes severe pain due to pressure on adjacent nerves.
Answer:
Disorders of muscular and skeleton system :
★ Myasthenia gravis :
Auto immune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle.
★ Tetany :
It is caused due to low blood calcium and is characterized by rapid or wild spasms.
★ Arthritis :
It is painful stiffness and inflammation of joints caused by infection, allergy, deficiency or hormonal imbalance.
Arthritis is of three types :
1. Rheumatoid Arthritis :
It is caused by inflammation of synovial membrane caused by bacterial infection, allergy or hormonal imbalance.
A completely damaged joint is replaced surgically. Staphylococcus bacteria which causes this also effects heart valves (Rheumatic heart disease).
2. Osteoarthritis :
It is a form of arthritis in which one of many joints undergo degenerative changes like loss of articular cartilage and proliferation of bone and cartilage in the joint
lt is very common in old age, where degeneration of hyaline cap by the regular use and deposite of calcium makes the surface hard.
3. Gouty Arthrititis or Gout :
It is a disease associated with an inborn error of uric acid metabolism that increases its production or interferes with uric acid excretion.
★ Muscular dystrophy :
Progressive degeneration of skeletal muscle mostly due to genetic disorder
★ Osteoporosis :
Age related disorder characterised by decreased bone mass and increased chances of fractures. Decreased levels of estrogen is a common cause in woman.
★ Strain :
Twisting of tendons between bone and muscle. It is less severe.
★ Sprain :
It is twisting, stretching or tearing of ligament. Ligament has poor power of regeneration It causes severe pain. It is a minor disorder, which can however, become chronic.
★ Prolapsed Disc :
Displacement of intervertebral disc from its normal position. It is due to mechanical injury or wrong sitting posture. It causes severe pain due to pressure on adjacent nerves.
Explanation: