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Appendicular Skeleton: Upper & Lower Limbs Video Lecture | Biology Class 11 - NEET

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FAQs on Appendicular Skeleton: Upper & Lower Limbs Video Lecture - Biology Class 11 - NEET

1. What is the appendicular skeleton?
Ans. The appendicular skeleton refers to the bones of the upper and lower limbs, including the shoulder girdle, arms, pelvic girdle, and legs. It provides support, allows movement, and helps in various functions such as grasping, walking, and running.
2. How many bones are there in the appendicular skeleton?
Ans. The appendicular skeleton consists of a total of 126 bones. It includes 64 bones in the upper limbs (shoulder girdle, arms, and hands) and 62 bones in the lower limbs (pelvic girdle, legs, and feet).
3. What is the function of the appendicular skeleton?
Ans. The appendicular skeleton has several functions. It supports the body's weight, allows for movement and locomotion, and enables us to perform various activities such as walking, running, and manipulating objects. It also protects vital organs and serves as attachment points for muscles.
4. How is the appendicular skeleton different from the axial skeleton?
Ans. The appendicular skeleton is different from the axial skeleton in terms of its location and function. The axial skeleton includes the skull, vertebral column, and thoracic cage, which primarily protect and support the body's vital organs. On the other hand, the appendicular skeleton consists of the upper and lower limbs, which are involved in movement and locomotion.
5. What are some common injuries or conditions affecting the appendicular skeleton?
Ans. Some common injuries or conditions affecting the appendicular skeleton include fractures, dislocations, sprains, strains, and arthritis. Fractures can occur in any bone of the upper or lower limbs due to trauma or repetitive stress. Dislocations happen when a joint is forced out of its normal position. Sprains and strains involve the stretching or tearing of ligaments and muscles, respectively. Arthritis, such as osteoarthritis or rheumatoid arthritis, can affect the joints of the appendicular skeleton, leading to pain and stiffness.
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