The outer layer of the uterus is called the perimetrium; it is the visceral. peritoneum of the uterus. The endometrium has two distinct layers (Fig. 28.9c): (1) The functional layer changes in. response to the monthly pattern of hormones.
uk â /ËpÉªn.É.kÉl/ us â /ËpÉªn.É.kÉl/. âº [ C usually singular ] the most successful or admired part of a system or achievement: By the age of 32 she had reached the pinnacle of her career.
A pinnacle is an architectural ornament originally forming the cap or crown of a buttress or small turret, but afterwards used on parapets at the corners of towers and in many other situations.The pinnacle looks like a small spire.It was mainly used in Gothic architecture.The pinnacle had two purposes:1  Ornamental â adding to the loftiness and verticity of the structure.he pinnacle looks like a small spire. It was mainly used in Gothic architecture. The pinnacle had two purposes: 1  Ornamental â adding to the loftiness and verticity of the structure.