0
The pectoral girdle is formed by the scapula, the humerus and the clavicle 3 bones in total
Audra Weissnat
Wiki User
∙ 13y agoclavicle and scapula
Add your answer:
Earn +20 pts
What skeleton is composed of 126 bones of the appendages and pectoral and pelvic girdles?
An appendicular skeleton is composed of 126 bones of the appendages, and pectoral and pelvic girdles.
How many bones does the pectoral girdles have?
23
The appendicular skeleton includes the bones of the what?
The part of the skeleton that includes the pectoral girdle and the pelvic girdle and the upper and lower limbs.
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.
Boa constrictors have tiny pelvic girdles and legs bones within their bodies that are nonfunctional what is that called?
Vestigial body parts.
Important to relate the structures of the axial and appendicular skeleton to one another?
The Skeleton can be divided into Axial and Appendicular portions. The Axial Skeleton, is the head and trunk, and include the bones of the skull, hyoid bone, vertebral column, and thoracic cage. The Appendicular Skeleton, contains the pelvic and pectoral girdles, as well as the upper and lower limbs. The limbs and girdles, of the Appendicular Skeleton, attach to the Axial Skeleton.
Compare the pectoral and pelvic girdles in terms of flexibility allowed?
Flexibility: pectoral girdle is more flexible-less ligaments, ball and socket joint is shallower Security: pelvic girdle is more secure, deeper socket. there are more dislocated shoulders than dislocated hips ability to bear weight: pelvic girdle can bear more weight-the pelvic girdle has bones that are fused (os coxa) and a joint with the sacrum. the pectoral girdle has a little bone called the clavicle connecting it to the body wall.
Why are the bones of the pelvic girdle larger than the bones of the pectoral girdle?
To hold the weight of the upper body and to stand the pressure of the lower half
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 constitutes of the pectoral girdle?
The pectoral girdle is made up of a left pectoral girdle and a right pectoral girdle. Each set of pectoral girdles has two bones, one clavicle and one scapula. The clavicle bones on both the left and right pectoral girdles are articulated with the sternum. The clavicles are also found on the anterior or front part of the skeleton. The scapula bones on both the left and right pectoral girdles are part of the posterior appendicular skeleton. The scapula bones each articulate with clavicle and the humerus. Your pectorial girdle is located at your shoulder area on your appendicular skeleton. Your upper limb bones are attached to the pectoral (shoulder) girdle. dcart45.
What bones of the human body differ in males and female?
The shape of the pelvic bones and the frontal bones differ.
What are the nonfunctional structures of tiny pelvic girdles and legs bones within the bodies of boa contrictors?
These are the remnants of the arms and legs that the ancestors of snakes had. Over time the limbs evolved to be smaller and smaller, until now the limbs are not visible externally but can be see as vestigial bones on a radiograph.
