Question

Differentiate the following activities on the basis of voluntary (V) or involuntary (IV) muscles.
A. Jumping of frog
B. Pumping of the heart
C. Writing with hand
D. Movement of chocolate in your intestine

Answer 1

On the basis of function, muscle tissues can be divided under voluntary or involuntary control; and on the basis of morphology, it can be either striated or non-striated. Muscles under our control are known as voluntary muscles. Their actions are mainly regulated by the somatic nervous system. Involuntary muscles are those muscles which are not governed by our will. These are mainly regulated by the Autonomic nervous system.

Complete answer:
Jumping of frog: Frogs jump with the help of skeletal muscles. Skeletal muscles are under voluntary control. But sometimes this can be subconscious, like when maintaining posture or balance. But jumping is made voluntarily hence jumping of frog comes under voluntary muscles.
Pumping of the heart: Pumping of heart is maintained by cardiac muscle tissue. The cardiac muscle is striated, but is not consciously controlled. So, the pumping of the heart is involuntary and comes under involuntary muscles.
Writing with hand: Hands are made up of skeletal muscles and are responsible for the movement of hands and fingers. Skeletal muscles are under voluntary control hence writing with hand comes under voluntary muscles.
Movement of chocolate in your intestine: Intestines are made up of smooth muscles. Smooth muscles play an important role in the regulation of flow such as the movement of food through the intestine. These muscles cannot be voluntarily controlled and hence they come under involuntary muscles.

Hence, Voluntary muscles: jumping frog, writing with hand. Involuntary muscles: pumping of heart, movement of chocolate in your intestine.

Note:
Muscle tissues are soft tissues which are highly specialized for the production of tension that ultimately results in the generation of force. Muscle cells which are also known as myocytes, contain myofibrils that are made up of actin and myosin myofilaments. A large number of myocytes makes up the muscle tissue and a significant amount of force can be generated by controlled production of tension in these cells.