Question

Differentiate between pectoral and pelvic girdle.

Answer 1

Girdle is a set of bones present in the appendicular skeleton present in the arm and hips. They help in anchorage to the axial skeleton.

Complete answer:
The human skeletal system is made up of 206 bones and it is made up of cartilage, tendons, ligaments, and bones.
The various functions of bones are,

They help in body movements
They also help in protecting the internal organs such as brain, heart, etc
It provides structural shape to the body
It also acts as the site for RBC origin

Now, you should know that the human skeletal system has two major divisions,

1. Appendicular skeleton
2. Axial skeleton

Both pelvic and pectoral girdle come under the appendicular skeleton.

Pectoral girdle	Pelvic girdle
It is also known as shoulder girdle and is found in shoulder on both the sides	It is found in the lower part of the trunk
It is a set of 4 bones -1. 2 scapula2. 2 clavicle	It is a set of 2 bones -1. Sacrum2. Coccyx
It is same in both males and females	Women majorly have gynaecoid pelvis and males have android pelvis
It helps in holding, lifting, etc	It helps in standing, jumping, etc

Note: The pectoral girdle stabilizes the upper limbs on the thorax and allows a range of mobility at the shoulder. Malformations impair these functions and distort the appearance of the upper chest and back. The pelvic girdle transfers upper body weight to the lower limbs by articulating with the spine.