Arrangement of Bones in Human Body | Axial Skeleton and Appendicular Skeleton | Class 11 Biology скачать в хорошем качестве

Arrangement of Bones in Human Body | Axial Skeleton and Appendicular Skeleton | Class 11 Biology

In this lecture, we study the arrangement of bones in the human body, focusing on the two main divisions of the skeleton: the axial skeleton and the appendicular skeleton. Understanding this classification helps students easily learn how the human skeleton is organized and how different bones work together to support movement and protect vital organs. The human skeleton consists of 206 bones in an adult. These bones are arranged into two major parts based on their location and function. Axial Skeleton The axial skeleton forms the central axis of the human body. It mainly provides support and protection to important organs such as the brain, spinal cord, heart, and lungs. The axial skeleton consists of 80 bones, including: Skull: Protects the brain and forms the structure of the face. Vertebral column: Also known as the backbone, it protects the spinal cord and supports the body. Rib cage: Made up of ribs and sternum, it protects the heart and lungs and helps in breathing. Appendicular Skeleton The appendicular skeleton is attached to the axial skeleton and is mainly responsible for movement and locomotion. It consists of 126 bones and includes: Pectoral girdle: Connects the upper limbs (arms) to the axial skeleton. It includes the clavicles and scapulae. Upper limbs: Include bones of the arms, forearms, wrists, and hands. Pelvic girdle: Connects the lower limbs (legs) to the axial skeleton and supports the weight of the body. Lower limbs: Include bones of the thighs, legs, ankles, and feet. The axial skeleton provides the main support and protection, while the appendicular skeleton allows movement and interaction with the environment. Together, these two divisions form the complete human skeletal system. This topic is very important for Class 11 Biology students to understand the basic organization of the human body. Keywords: arrangement of bones, axial skeleton, appendicular skeleton, class 11 biology, human skeleton, skeletal system, axial vs appendicular skeleton, bones of human body, chapter 12 biology, FSc biology Hashtags: #ArrangementOfBones #AxialSkeleton #AppendicularSkeleton #Class11Biology #SkeletalSystem #HumanSkeleton #BiologyLecture #FScBiology #ScienceTeachingsOn #BiologyStudents #Chapter12 #BiologyEducation #ScienceClass #BiologyTeacher #LearningBiology #BiologyNotes #EducationChannel #StudyScience