Haversian canals are found in

Haversian canals are found in

Options

(a) Spinal cord (b) Brain (c) Long bones (d) Sponge

Correct Answer:

Long bones

Explanation:

Haversian canals are present in long bones such as humerus, femur, tibia […]

Gastrocnemius is a muscle of

Gastrocnemius is a muscle of

Options

(a) Forelimbs (b) Thigh (c) Shank (d) Abdomen of frog

Correct Answer:

Shank

Explanation:

It is the principal calf muscle in the leg of a tetrapod. It […]

During muscle contraction

During muscle contraction

Options

(a) Chemical energy is changed into electrical energy (b) Chemical energy is changed into mechanical energy (c) Chemical energy is changed into physical energy (d) Mechanical energy is changed […]

Contraction of a muscle is caused by

Contraction of a muscle is caused by

Options

(a) Myosin (b) Actin (c) ATP (d) Actomyosin

Correct Answer:

Actomyosin

Explanation:

During muscle contraction, myosin and actin form cross birdges. This complex is known […]

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