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

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

The upper ends of the forearm bones articulate with each other in a:

1. pivot joint

2. ellipsoid joint

3. saddle joint

4. hinge joint

The vasomotor center that controls the diameter of blood vessels is located in the

1. medulla oblongata

2. pons

3. cerebrum

4. cerebellum

Which of the following is a hinge point?

1. At the base of the first metacarpal

2. Intervertebral disc

3. Interphalageal

4. Between carpal bone