During muscle contraction, the length of all the following gets reduced except:
1. H-Zone
2. A-Band
3. I-Band
4. Sacromere
What is true about the white muscle fibers?
1. Myoglobin content is high
2. They have large number of mitochondria
3. They depend on anaerobic process for energy
4. They are adapted for slow sustained activities
Which of the following is not a cranial bone?
1. Zygomatic
2. Sphenoid
3. Ethmoid
4. Parietal
The human ribs are termed as bicephalic because:
1. They have two articulations surfaces on their ventral end
2. They have two articulations surfaces on their dorsal end
3. They have two articulations surfaces on their ventral end and two on dorsal end
4. They have two articulations surfaces on their ventral end and one on dorsal end
The clavicle articulated with the:
1. Xiphoid process of the sternum
2. Acromion of the scapula
3. Glenoid cavity of the scapula
4. Head of the humerus
Hypocalcemia may lead to:-
1. Kidney stones
2. Cholelithiasis
3. Stronger muscle contractions
4. Tetany
Identify the incorrectly matched pair:
Joint Type
1. Proximal radio-ulnar joint Pivot
2. Joint between the carpals Gliding
3. Joint between metacarpal of Saddle
thumb and phalange
4. Humero-ulnar joint Hinge
The globular head of the myosin filament has active site/s for binding to:
I. ATP
II. binding site for actin filament
III. Calcium
1. Only I
2. Only I and II
3. Only II and III
4. I, II and III
Immediately after an action potential has peaked, which cellular gates open?
1. Sodium
2. Chloride
3. Calcium
4. Potassium
The useful purpose served by lactate fermentation is:
1. Make lactose available for gluconeogenesis
2. Production of additional ATP in anaerobic conditions
3. Regeneration of NAD+
4. Increased availability of oxygen for the skeletal muscle