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The pectoral girdle is formed by the scapula, the humerus and the clavicle 3 bones in total
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What skeleton is composed of 126 bones of the appendages and pectoral and pelvic girdles?
The appendicular skeleton is composed of 126 bones, including those of the upper and lower limbs as well as the pectoral and pelvic girdles. These bones are important for movement and provide connections to the axial skeleton.
What are the 2 girdles of human body?
The pelvic girdle and the thoracic girdle. You are familiar how a body girdle goes around the body. These are the same. They make a girdle around the chest and around the pelvis.
How many bones does the pectoral girdles have?
23
The appendicular skeleton includes the bones of the what?
The appendicular skeleton includes the bones of the limbs (arms and legs), the shoulder girdle, and the pelvic girdle. It provides support and facilitates movement of the body.
Hypothesize why the pelvic bones of a four-legged animal such as a cat or pig are much less massive than those of a human?
In a four-legged animal, the weight of the body would be distributed between the pelvic and pectoral girdles. In humans, the pelvis has to support the weight of the whole trunk.
Is it true that the pectoral girdle is formed by the articulation of the hip bones and the sacrum?
No, the pectoral girdle is formed by the clavicle and scapula bones. The hip bones and sacrum form the pelvic girdle.
Boa constrictors have tiny pelvic girdles and legs bones within their bodies that are nonfunctional what is that called?
The nonfunctional vestigial pelvic girdle and limb bones in boa constrictors are referred to as pelvic spurs or pelvic vestiges. These remnants are thought to be remnants of their evolutionary history when their ancestors had functional legs.
Which bone are included in the appendicular skeleton?
The appendicular skeleton includes the bones of the upper and lower limbs, including the arms, hands, shoulders, pelvis, legs, and feet. It also includes the girdles that attach the limbs to the axial skeleton, such as the pectoral girdle (shoulder) and pelvic girdle (hip).
Compare the pectoral and pelvic girdles in terms of flexibility allowed?
The pectoral girdle (shoulder girdle) is more flexible than the pelvic girdle due to its greater range of motion and flexibility in various directions. The pelvic girdle is more stable and less mobile to provide support for the lower body during weight-bearing activities.
What are the component of the appendicular skeleton?
The appendicular divison (126 bones) consist of the pectoral girdle, upper limbs, pelvic girdle, and lower limbs.
What is the difference between pectoral and the pelvic?
The pectoral region refers to the chest area, specifically the muscles and structures in front of the chest. The pelvic region refers to the area of the body below the abdomen, including the pelvis, hips, and groin. Each region has its own set of muscles, bones, and organs that serve different functions in the body.
Why are the bones of the pelvic girdle larger than the bones of the pectoral girdle?
The pelvic girdle supports more weight and pressure due to the upper body resting on it while standing and moving. It also provides protection for internal reproductive organs. Additionally, the pelvic girdle is involved in weight-bearing activities such as walking and running, requiring larger and stronger bones for stability and support.
