Answer;
-Ossification (growth) centers
Explanation;
-Ossification is the process of bone formation by osteoblasts. Ossification is distinct from the process of calcification; whereas calcification takes place during the ossification of bones, it can also occur in other tissues.
-Primary ossification center is the first area of a bone to start ossifying. It usually appears during prenatal development in the central part of each developing bone. The secondary ossification centers appear, during the first years of postnatal life, in the epiphyses of the bone (at the ends of the bone).
<span>In esophagus the stratified squamos epithelium acts for protection and lubrication during food intake. It is structured to act like a mucous layer. Normal stratified squamos epithelium are of flattened epithelial cells upon a basl membrane. It provides protection against friction, microbial invasion etc.</span>
It also supplies the muscles of the thenar eminence by a recurrent thenar branch. The rest of the intrinsic muscles of the hand are supplied by the ulnar nerve<span>. The </span>median nerve<span> innervates the skin of the palmar side of the thumb, the index and middle finger, half the ring finger, and the nail bed of these fingers.this should be the answer to your question </span>
A device that reduced the amount of force is a simple machine