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.
    How does a chromosomal disorder differ from a Mendelian disorder ? Write one example for each.


      • 2.
        Explain Gause’s 'Competitive Exclusion Principle' and provide a suitable ecological example that demonstrates this principle in nature.


          • 3.
            Mention the source and the role of the following in providing defence against infection in the human body : (I) Histamine (II) Interferons


              • 4.

                We know that plasmids and bacteriophages are the most commonly used vectors in biotechnology experiments. If we can link an alien piece of DNA to the plasmid DNA, the alien DNA can be multiplied equal to the copy number of the plasmid. Engineered vectors are used these days. Study the diagram of the E. coli cloning vector pBR322 and answer the questions that follow : 


                  • 5.
                    Arrange the following hormones in sequence of their secretion in a pregnant woman : hCG; LH; FSH; Relaxin.


                      • 6.
                        Name the phenomenon that leads to situations like ‘XO’ abnormality in humans. Also name this genetic disorder. How are individuals with an XO chromosomal abnormality affected ? Write its symptoms as well as karyotype.

                          CBSE CLASS XII Previous Year Papers

                          Comments


                          No Comments To Show