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.
Headache Home. A temporal artery biopsy is a procedure in which a small piece of tissue is removed from your temporal artery and then studied under a microscope to check for signs of inflammation and damage.n the day of the biopsy, you will change into a hospital gown and may be taken to a special room where the procedure will be done. Your healthcare provider will locate your temporal artery. He or she will then use a small needle to deliver medicine that will numb the skin near the biopsy site.