112.

Draw the diagram of a sarcomere of skeletal muscle showing different regions.

 

Match Column I with Column II :

Describe the important steps in muscle contraction.

How do you distinguish between a skeletal muscle and a cardiac muscle?

Lack of relaxation between successive stimuli in sustained muscle contraction is known as

• fatigue

• tetanus

• tonus

• tonus

Which type of tissue correctly matches with its location?

• Tissue	Location
  Areolar tissue	Tendons

• Tissue	Location
  ATransitional epithelium	Teip of nose

• Tissue	Location
  Cuboidal epithelium	Tlining of stomach

• Tissue	Location
  Cuboidal epithelium	Tlining of stomach

The H -zone in the skeletal muscle fibre is due to

• the absence of myofibrils in the central portion of A-band

• the central gap between myosin filaments in the A-band

• the central gap between actin filaments extending through myosin filaments in the A-band

• the central gap between actin filaments extending through myosin filaments in the A-band

Select the correct statement with respect to locomotion in humans

• A decreased level of progesterone cause osteoporosis in old people

• Accumulation of uric acid crystals in joints causes their inflammation.

• The vertebral column has 10 thoracic

• The vertebral column has 10 thoracic