When two atoms bonded by a covalent bond have the same electronegativity the electrons will be equally shared. This is called pure (non-polar) covalent bonding. For example, the chlorine molecule, Cl 2.or example, sodium (a metal) combining with chlorine (a non-metal). Covalent, polar covalent and ionic bonding can be considered as forming a spectrum.As the difference in electronegativity increases the bonds become more polar then ionic. 1  Page. 2  1. 3  2. 4  3.
For the vein, see Superficial temporal vein. In human anatomy, the superficial temporal artery is a major artery of the head. It arises from the external carotid artery when it bifurcates into the superficial temporal artery and maxillary artery. Its pulse is palpable superior to the zygomatic arch, anterior and superior to the tragus.
CPTÂ®: The procedure performed is a ligation and biopsy of the left superficial temporal artery. In the CPT Index, locate Ligation/ Temporal, which refers to 37609. In the Tabular List, read any guidelines and verify the code. This leads to code 37609, Ligation or biopsy, temporal artery. This code would also be assigned if a ligation was not performed, and a biopsy was performed instead. The modifier LT is appended to the code because the temporal artery is on either the left or the right ...