Tag: disorders of musculoskeletal system

Questions Related to disorders of musculoskeletal system

Dislocation is a disease caused by

zoology locomotion and movement disorders of musculoskeletal system disorders of muscle and skeleton joints and movements

  1. Biological agent

  2. Mechanical agent

  3. Physical agent

  4. Chemical agent

Show answer
Correct Option: B
Explanation:

Dislocation is a disease which occurs when there is an abnormal separation in the joint, where two or more bones meet. Most common sites of dislocation are shoulder, hip, patella, ankle and fingers. Dislocations are often caused by sudden trauma on the joint like an impact or fall. Mechanical agents are the major cause of dislocation, sprains, injuries, fractures etc.

So, the correct answer is 'Mechanical agent'.

At times ligaments and tendons are overstretched or torn. The phenomenon is 

zoology locomotion and movement disorders of musculoskeletal system disorders of muscle and skeleton joints and movements

  1. Sprain

  2. Dislocation

  3. Fracture

  4. Tension

Show answer
Correct Option: A
Explanation:
  • The bands of fibrous tissue that connect bones to bones at joints are called as Ligaments and which connect muscles to the bones are called as tendons.
  • At times ligaments and tendons are overstretched or torn. The phenomenon is called a sprain.
  • Sprain happen most often in the ankle but can occur at any joint, such as the wrist or knee.”
  • So, the correct answer is a 'Sprain'.

Select the correct statement about muscular disorder.

zoology locomotion and movement disorders of musculoskeletal system disorders of muscle and skeleton joints and movements

  1. Accumulation of urea and creatine in joints

  2. An overdose of vitamin D causes osteoporosis

  3. Rapid contraction of skeletal muscles causes dystrophy

  4. Failure of neuromuscular transmission in myasthenia gravis can prevent normal swallowing

Show answer
Correct Option: D
Explanation:
  • Autoimmune diseases are a group of disorders in which tissue injury is caused by humoral (autoantibodies) or cell-mediated (by autoreactive T cells) immune response to self-antigens.
  • Myasthenia gravis is caused by an autoantibody against muscle antigen and acetylcholine receptor antigen.
  • It is characterized by increased muscular weakness the make one fatigue. speaking, breathing and talking becomes tired some. The failure of neuromuscular transmission in myasthenia gravis can prevent normal swallowing.
  • So, the correct answer is 'Failure of neuromuscular transmission in myasthenia gravis can prevent normal swallowing'.

Which of the following is correctly matched?

zoology locomotion and movement disorders of musculoskeletal system disorders of muscle and skeleton joints and movements

  1. Relaxin- Gigantism

  2. Prolactin- Cretinism

  3. Parathyroid hormone- Tetany

  4. Insulin- Diabetes insipidus

Show answer
Correct Option: C
Explanation:

The correct combination of disease due to hyposecretion of these hormones:-

 Relaxin  Cervical dystocia
 Prolactin   Sheehan syndrome
 Parathyroid hormone  Tetany
 Insulin  Diabetes Mellitus

Tetany is related with parathyroid hormone or parathormone, it is responsible for calcium metabolism, the hyposecretion of parathormone lowers the blood calcium that results in the increasing the excitability of nerves and muscles.

Hypocalcemia (decreased $Ca^{+2}$ level of plasma) can lead to ______________.

zoology locomotion and movement disorders of musculoskeletal system disorders of muscle and skeleton joints and movements

  1. Tetany

  2. Renal calculi

  3. Osteoporosis

  4. Myasthenia gravis

Show answer
Correct Option: A

Imbalances of certain hormones, deficiencies of calcium and vitamin D are the major causative factors of :

zoology locomotion and movement disorders of musculoskeletal system disorders of muscle and skeleton joints and movements

  1. rheumatoid arthritis

  2. osteoporosis

  3. osteoarthritis

  4. gouty arthritis

Show answer
Correct Option: B
Explanation:

The deficiency of calcium and vitamin D are the major causative factor of osteoporosis .

So, the correct option is 'osteoporosis'.

This is diagnose by the presence of a type of IgM

zoology locomotion and movement disorders of musculoskeletal system disorders of muscle and skeleton joints and movements

  1. Osteoporosis

  2. Gout

  3. Osteoarthritis

  4. Rheumatoid arthritis

Show answer
Correct Option: D

In Myasthenia gravis acetylcholine __________________.

zoology locomotion and movement disorders of musculoskeletal system disorders of muscle and skeleton joints and movements

  1. Receptors on motor end plate are reduced

  2. Secretion from nerve terminals is reduced

  3. Esterase activity is inhibited

  4. Secretion from nerve terminals is enhanced

Show answer
Correct Option: A

Which of the following indicates tetany?

zoology locomotion and movement disorders of musculoskeletal system disorders of muscle and skeleton joints and movements

  1. Spasm

  2. Muscular cramps

  3. Tremors

  4. All of the above

Show answer
Correct Option: D
Explanation:
Tetany is a condition marked by intermittent muscular cramps and spasms, caused by malfunction of parathyroid glands and due to deficiency of calcium. Tremors are also seen. 
So, the correct answer is 'All of the above'.

Which of the following are the reasons(s) for rheumatoid arthritis? Choose the correct option
(i) Lymphocytes become more active
(ii) Body attacks self cells
(iii) More antibodies are produced in the body
(iv) The ability to differentiate pathogens or foreign molecules from self cells is lost

zoology locomotion and movement disorders of musculoskeletal system disorders of muscle and skeleton joints and movements

  1. (i) and (ii) 

  2. (ii) and (iv) 

  3. (iii) and (iv)

  4. (i) and (iii)

Show answer
Correct Option: A
Explanation:
Rheumatoid arthritis is chronic pain due to inflammation of the synovial membrane of many joint simultaneously. It usually starts in the small joints in the hand and progressive and centripetal an asymmetric manner.
It involves erosion of the joints. 
The major cause of this the lymphocytes become more active and the body cells lose the ability to differentiate between the self and the foreign cells. The lymphocytes start attacking the body cells.
So, the correct option is '(i) and (ii)'