What is a covalent compound made of many small repeating units linked together in a chain? A polymer would fit that description. Also, a protein which is made of many amino acids hooded together by a peptide bond, which is a covalent bond.
Hip abductors are muscles on the other side of the leg and they do the opposite motion, by bringing the leg away from the middle of the body. It would look funny if humans stood around adducting and abducting their leg, but itâs more complex than thatâ¦.
Nerves,The two plexi that contribute to the nervous innervation of the lower limb are the lumbar plexus and sacral plexus. The lumbar plexus (L1-5) gives rise to the femoral and obturator nerves that innervate the hip flexors and adductors and the knee extensors. The sacral plexus (L4-S4) forms the sciatic nerve which will divides into the common peroneal and tibial nerves at the popliteal fossa.