What are limbs? What are their functions?

Collegedunia Team logo

Collegedunia Team

Content Curator

Limbs are appendages attached to the torso that aid in movement, support, and balance. They are present in many vertebrates including humans and are usually composed of bones, muscles, and joints. In humans, there are four limbs: two arms and two legs. The limbs play an important role in human mobility, allowing us to perform various physical activities such as walking, running, jumping, and grasping. They also help us maintain balance and stability while performing these movements.

The four main limbs of the human body are:

  1. Arms- Used for grasping, holding, and reaching.
  2. Legs- Used for walking, running, jumping, and balancing.
  3. Hands- Used for fine motor movements and dexterity.
  4. Feet- Used for support, balance, and movement.

Human body limbs

Human Body Limbs

Also check:

CBSE CLASS XII Related Questions

  • 1.
    Describe the series of experiments conducted by Frederick Griffith. Comment on the significance of the result obtained.
    State the contribution of Avery, MacLeod and McCarty.


      • 2.
        Read the following passage and answer the questions that follow:
        India is one of the megadiverse countries housing around 8·1 per cent of global species diversity, although its land area is only 2·4 per cent of the world’s land area. Many of the species are highly threatened due to human activities like deforestation, mining and habitat fragmentation. Laws like Wildlife (Protection) Act, 1972 were enacted by the Government of India to preserve our biological wealth. Various conservation measures are being implemented to save the threatened species. The following bar graph shows the number of species conserved under different biodiversity conservation methods.

        Which other methods shown in the diagram are opposite to the one identified by you in question ? How are these two conservation approaches different?
        (c) Write two features of Biodiversity hotspots.
        (c) To which category do sacred groves belong and how do they help in bio-conservation?


          • 3.
            In vitro fertilization (IVF) is a popular method these days that is helping childless couples to bear a child.
            Write the different steps that are carried out in this technique.
            Would you consider gamete intra fallopian transfer as a type of IVF? Justify your answer.


              • 4.
                Describe the experiment conducted by T.H. Morgan on Drosophila melanogaster involving eye colour and body colour.
                How did the results deviate from Mendelian inheritance pattern ?
                (c) Explain the two genetic terms used by Morgan for his observations.


                  • 5.

                    Read the following passage and answer the questions that follow: 
                    The data below shows the concentration of nicotine smoked by a smoker taking 10puffs/minute.
                     


                      • 6.
                        What is the carrying capacity of a species in a habitat?
                        Explain the growth curve that takes this capacity into account.

                          CBSE CLASS XII Previous Year Papers

                          Comments


                          No Comments To Show