How Do Pectoral Girdle and Pelvic Girdle Differ?
The joints, muscles, and structures that link one bone to the next make up your body. Your upper limbs are connected to the bones along your body’s axis by a pectoral girdle, also known as the shoulder girdle. In your body, you have two pectoral girdles. The clavicle, or collarbone, and scapula, or shoulder blade, make up the pectoral girdle, which connects the two bones that make up your shoulder. The pectoral girdles on the left and right sides of your body are important for giving structural support to your shoulder area. They also provide a wide range of motion by linking muscles that are required for shoulder and arm mobility. On each side of your body, the pectoral girdles are not connected. Your shoulder and arms will be able to move and operate independently as a result of this. The clavicle and scapula are the two main bones that make up the pectoral girdle.
Clavicle bone — The clavicle, often known as the collarbone, is a horizontally positioned S-shaped bone on the front of your body. It protects your nerves and blood vessels that travel between your trunk and your upper limbs while supporting your shoulder and allowing you to move freely. The only direct link between your pectoral girdle and axial skeleton is through your collarbone. There are three components to your clavicle: Middle end, lateral end and shaft.
Scapula bone — The scapula bone, often known as the shoulder blade, is positioned in the rear of your shoulder, unlike the clavicle. It links your humerus to your collarbone and is triangular in shape. A variety of muscles in your shoulder and upper limbs connect to your neck and back through the scapula. The three borders of your scapula are as follows: medial border, lateral border, and superior border.
Pectoral girdle joints — The pectoral girdle is made up of four major joints: Sternoclavicular joint, Scapulothoracic joint, Acromioclavicular joint, and Glenohumeral joint.
Pelvic Girdle
Pelvis, also known as the bony pelvis or pelvic girdle, is a basin-shaped complex of bones in human anatomy that links the trunk and legs, supports and balances the body, and houses and supports the intestines, urine bladder, and internal sex organs. The pelvis is made up of three bones: the blade-shaped ilium, that accounts for the breadth of the hips; the ischium, where the weight rests while sitting; and the pubis, in front. The cup-shaped socket that forms the hip joint with the femur head in early adulthood, all three come together at a triangle suture in the acetabulum. In females, the ring formed by the pelvis serves as the birth canal. Muscles that balance and support the trunk, as well as move the legs, hips, and trunk, link to the pelvis. The pelvis of a newborn baby is small and unsupportive. The pelvis broadens and tilts as the kid walks, the sacrum lowers further into its articulation with the ilia, and the lower back’s lumbar curvature develops. The center of gravity in semierect apes is at the shoulder, and the abdominal organs are supported by the spinal column. The pelvis is horizontally orientated, and the ilium is enlarged and spoon-shaped. The center of gravity falls over the center of the body when a person stands up straight, and the weight is transferred through the pelvis, from the spinal column to the thighbone, knee, and foot.
Differences
There are 206 bones in the human skeletal system, which are made up of cartilage, tendons, ligaments, and bones. Bones serve a variety of purposes, including: They aid in bodily mobility and safeguard internal organs such as the brain, heart, and others. It gives the body its structural structure and serves as the location of RBC formation. The human skeletal system is divided into two major divisions: the appendicular skeleton and the axial skeleton.
Pectoral girdle — It is also known as the shoulder girdle and can be seen on both sides of the shoulder. It is made up of four bones: one scapula, two clavicles, and one clavicle. Both guys and females have the same problem. It aids with holding, lifting, and other tasks.
Pelvic girdle — It may be found at the bottom of the trunk. It is made up of two bones: the sacrum and the coccyx. The gynaecoid pelvis is more common in women, whereas the android pelvis is more common in men. It aids in standing, leaping, and other activities.
The pectoral girdle stabilises the upper limbs on the thorax while also allowing for shoulder movement. These functions are hampered by malformations, which also alter the look of the upper chest and back. By articulating with the spine, the pelvic girdle distributes upper body weight to the lower limbs.
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