EASY
Earn 100

Rigor mortis (stiffness after death) occurs due to muscle contraction. However, it lasts for 24 hours and then disappears. This is because

50% studentsanswered this correctly

Important Questions on Muscular and Skeletal System

MEDIUM

Match the following columns and select the correct option:-

Column-I Column-II
(a) Gout (i) Decreased levels of estrogen
(b) Osteoporosis (ii) Low Ca++ ions in the blood
(c) Tetany (iii) Accumulation of uric acid crystals
(d) Muscular dystrophy (iv) Autoimmune disorder
    (v) Genetic disorder
EASY
Chronic autoimmune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle is called as:
EASY

Match the following 

   List - I     List - II
(a) Uric acid crystals in joints  (i) Arthritis
(b) Inflammation of joints (ii) Autoimmune disorder
(c) Myasthenia gravis (iii) Tetany
(d) Prolonged contraction of muscle (iv) Osteoporosis
    (v) Gout

The correct answer is

EASY
In emergency of severe seizures of tetany, magnesium and calcium should be given. Explain the reason.
MEDIUM

Consider the following statements each with one or two blanks.

(i) Each pectoral girdle consists of a (A) and a (B)
(ii) (C) is a condition of rapid spasms (wild contractions) in muscle due to low Ca++ in body fluid.
(iii) Each organized skeletal muscle in our body is made of a number of (D) held together by a common collagenous connective tissue layer called (E).

Which one of the following options correctly fills the blanks in any two of the statements?

MEDIUM
Select the correct combination of statements regarding Myasthenia gravis

I. It is an auto immune disorder.

II. It causes insufficient acetylcholine binding that effects muscular contraction.

III. Antibodies are developed against acetylcholine.

IV. Antibodies are developed against acetylcholine receptors.

V. It causes drooping of eyelids.
HARD
You must have heard of Sachin Tendulkar suffering from 'tennis elbow', a cricketer suffering from a disorder named after another game. Can common people suffer from this disorder? Find out more information about this disorder.
MEDIUM
Which tissue is afflicted by Myasthenia gravis? What is the underlying cause?
MEDIUM
Predict the effect of less Ca2+ concentration in extracellular fluid on bones.
MEDIUM

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

EASY
Lack of relaxation between successive stimuli in sustained muscle contraction is known as:-
MEDIUM

Correctly match column-I with column-II.

Column-I Column-II
(A) Tetany (i) Autoimmune disorder
(B) Osteoporosis (ii) Progressive degeneration of skeletal muscle
(C) Muscular dystrophy (iii) Inflammation of joints
(D) Arthritis (iv) Rapid spasms in muscle
(E) Myasthenia Gravis (v) Bone mass decreased