- Exam
- NEET
- Subject
- Zoology
- Chapter
- Locomotion and Movement
NEET · Zoology · Locomotion and Movement
What is the function of the pectoral and pelvic girdle bones?
Options
- AArticulation with the upper and lower limbs respectively with the axial skeleton
- BProtection of internal organs
- CSupport for the head
- DMovement of the thorax
Correct answer
A. Articulation with the upper and lower limbs respectively with the axial skeleton
Step-by-step solution
.The human body consists of 206 bones in total. These bones are grouped into two main divisions - the axial skeleton and the appendicular skeleton. The skull is composed of two sets of bones, cranial and facial, that total to 22 bones.Each vertebra has a central hollow portion (neural canal) through which the spinal cord passes. The vertebral column is differentiated into cervical (7), thoracic (12), lumbar (5), sacral (1-fused) and coccygeal (1-fused) regions.The pectoral and pelvic girdle bones help in the articulation of the upper and the lower limbs respectively with the axial skeleton.Each half of the pectoral girdle consists of a clavicle and a scapula. Joints are essential for all types of movements involving the bony parts of the body. Locomotory movements are no exception to this. Force generated by the muscles is used to carry out movement through joints.Fibrous joints are joints in which bones are held together by fibrous connective tissue. They are usually immovable or slightly movable.