Class 11 Anthropology Important Chapter 2 Human Skeleton

Class 11 Anthropology Important Chapter 2 Human Skeleton Solutions English Medium As Per AHSEC New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters ASSEB Class 11 Anthropology Important Solutions and select need one. AHSEC Class 11 Anthropology Additional Notes English Medium Download PDF. HS 1st Year Anthropology Important Solutions in English.

Class 11 Anthropology Important Chapter 2 Human Skeleton

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. ASSEB Class 11 Anthropology Additional Question Answer are part of All Subject Solutions. Here we have given HS 1st Year Anthropology Important Notes in English for All Chapters, You can practice these here.

Human Skeleton

Chapter: 2

IMPORTANT QUESTION AND ANSWER

Answer The Following Questions:

1. What are sutures in the skull?

Ans: Sutures are fibrous joints that connect the bones of the skull.

2. How many bones are in the human vertebral column?

Ans: 33 bones (7 cervical, 12 thoracic, 5 lumbar, 5 sacral, 4 coccygeal).

3. How many pairs of ribs are there in the human body?

Ans: 12 pairs.

4. What is the dental formula for permanent teeth?

Ans: 3 2 1 2 / 2 1 2 3.

5. What part of the body contains the greatest number of bones?

Ans: Hands (27 bones in each hand).

6. What is the function of the foramen magnum?

Ans: It allows the spinal cord to pass from the brain to the body.

7. What is the function of the sternum?

Ans: The sternum protects the heart and lungs.

8. What is the function of the pelvis?

Ans: The pelvis supports the weight of the body and provides attachment for the lower limbs.

9. What is the main function of the femur?

Ans: The femur supports the body’s weight and facilitates movement of the leg.

10. What are the three parts of the sternum?

Ans: Manubrium, Body, Xiphoid process.

11. Which bone forms the base of the skull and contains the foramen magnum?

Ans: Occipital bone.

12. What is the structure of the human skeleton?

Ans: The human skeleton is made up of bones, ligaments, and cartilage. At birth, humans have around 270 bones, which decrease to 206 in adulthood as some bones fuse together. The skeleton is divided into two main parts: the axial skeleton (skull, vertebral column, rib cage, and sternum) and the appendicular skeleton (pectoral girdle, limbs, pelvic girdle).

13. What are the functions of the human skeleton?

Ans: The human skeleton performs several vital functions:

(i) Support – Provides structure and support to the body.

(ii) Protection – Protects vital organs like the brain, heart, and lungs.

(iii) Movement – Facilitates movement by acting as levers for muscles.

(iv) Blood cell production – Red and white blood cells are produced in the bone marrow.

(v) Mineral storage – Stores minerals like calcium and phosphorus.

14. What is a suture? How do sutures work in the skull?

Ans: A suture is a type of fibrous joint found in the skull, where bones are connected by dense connective tissue. Sutures allow the bones of the skull to grow together during early childhood and become immovable as the person matures. They are vital for protecting the brain and maintaining the shape of the skull.

15. What is the function of the rib cage in the human skeleton?

Ans: The rib cage is a bony structure made up of 12 pairs of ribs, the sternum, and the thoracic vertebrae. Its primary function is to protect the heart, lungs, and other organs within the chest cavity. The rib cage also supports breathing by expanding and contracting with the movement of the diaphragm and intercostal muscles.