Skeletal muscle bundles [fascicles] are held together by a common connective tissue layer called:
1. Perimysium
2. Endomysium
3. Fascia
4. Aponeurosis
The neurotransmitter released at the neuromuscular junction is:
1. Adrenaline
2. Nor-adrenaline
3. Dopamine
4. Acetylcholine
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 a large number of mitochondria
3. They depend on anaerobic process for energy
4. They are adapted for slow sustained activities
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 the dorsal end. |
4. | They have two articulations surfaces on their ventral end and one on the dorsal end. |
The clavicle is 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. the 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
Scapula is a large triangular flat bone situated in the dorsal part of the thorax between:
1. the second and fifth ribs
2. the second and seventh ribs
3. the third and sixth ribs
4. the third and eighth ribs