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Because they have evolved (or were designed, whichever you choose to believe) as to be the primary weight bearing limbs, so they have to be more sturdy to do that job than the upper limbs.

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Q: Why are the bones of the lower limbs larger and heavier than upper limbs?
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List the name of the long bones of the upper and lower limbs?

your arms are the upper limbs and your legs are the lower limbs :)


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.


How many bones are in the upper limbs and the lower limbs?

Upper limbs= Scapula, clavical, humerus, radius, ulnar, 8 carpals, 5 metacarpals and 14 phalanges Xs 2= 64. Lower limbs= Coxal, femur, patella, tibia, fibula, 7 tarsals, 5 metatarsals and 14 phalanges Xs 2= 62.


Why do wheelchair bound people with paralyzed lower limbs develop thin weak leg and thigh bones?

Because bones that are not subjected to weight-bearing stress lose calcium.


What are the components of ther appendicular skeleton?

The bones that form the longitudinal axis of the body, called axial skeleton. it has 3 main parts , skull, vertebral column and the bony thorax. Appendicular skeleton consists with bones of the limbs and girdles. ( upper limbs, lower limbs, pelvic girdle and shoulder girdles)


What bone is not an axial bone?

Axial bones are those that are found within your head, vertebral (spinal) column, and ribcage. Any other bone is considered part of the appendicular skeleton; these include all bones related to the upper and lower limbs. This includes your clavicle (collarbone), scapula (shoulder blade), and pelvic bones, even though they are part of your torso (and obviously all bones that are further down in the limbs).


Does the lower arm bone helps us move or protect your organs?

The function of many bones is to move things especailly in the limbs wiith the help of muscles.


How many major bones does the adult human body have?

The adult human body has 206 bones. The Axial skeleton, which consists of all the bones in the head, the rib cage, the hyoid bone, the sternum, and vertebral column, has 80 bones. The Appendicular skeleton, which consists of the upper and lower limbs, has 126 bones.


What are the regions of lower limbs?

kalamaris


Where are the long bones located?

The "larger" bones in the body are located in the extremities, such as the femur, tibia and fibula in the lower extremities, and the humerus, radius and ulna in the upper extremities.


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


Name the bones of the lower limbs from superior to inferior?

pubis ischium illium sacrum coccyx femur patella tibia fibula tarsal talus calcaneus navicular. prob not in order but those are the bones