Select the correct statement regarding the specific disorder of muscular or skeletal system.
1. | Muscular dystrophy - age related shortening of muscles |
2. | Osteoporosis- decrease in bone mass and higher chances of fractures with advancing age |
3. | Myasthenia gravis- auto immune disorder which inhibits sliding of myosin filaments |
4. | Gout- inflammation of joints due to extra deposition of calcium |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The neurotransmitter released by the motor neurons at the neuromuscular junction is:
1. | Acetylcholine | 2. | Noradrenaline |
3. | GABA | 4. | Adrenaline |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Glenoid cavity articulates
1. | clavicle with acromion | 2. | scapula with acromion |
3. | clavicle with scapula | 4. | humerus with scapula |
1. | Myasthenia gravis | Autoimmune disorder affecting neuro-muscular junction |
2. | Tetany | Spasms in muscle due to high Ca++ in body fluids |
3. | Osteoporosis | Decreased bone mass is commonly due to decreased levels of estrogen |
4. | Gout | Inflammation of joints due to accumulation of uric acid crystals |
1. | The total number of true ribs and floating ribs are 7 pairs and 2 pairs respectively |
2. | Glenoid cavity and acetabulum are respectively present in scapula and coxal bone |
3. | The number of cervical vertebrae in Giraffe are more than the cervical vertebrae in humans |
4. | Sutures between cranial bones are examples of fibrous joints |
1. | Ear ossicles | Total 6 in number |
2. | Pubic symphysis | Fibrous cartilage |
3. | Gliding joint | Between atlas and axis vertebrae |
4. | Scapula | Glenoid cavity |
1. | Z lines bisect the I band |
2. | G actin is a polymer of F actins |
3. | A subunit of troponin masks active binding sites for myosin on the actin filament. |
4. | Globular head of myosin has ATPase activity. |
1. | Hinge | 2. | Ball and socket |
3. | Pivot | 4. | Saddle |
Assertion (A): | Post-menopausal women are at higher risk to develop osteoporosis. |
Reason (R): | Level of oestrogen in post-menopausal women is decreased. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Assertion (A): | Vertebrochondral ribs are called true ribs. |
Reason (R): | Vertebraochondral ribs are attached to the thoracic vertebrae dorsally and are ventrally connected to the sternum. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |