Definition of litre: A metric unit of capacity, formerly defined as the volume of one kilogram of water under standard conditions, now equal to 1,000 cubic centimetres (about 1.75 pints): 5 cc is about 5 ml. For details see wWkipedia: Litre and Metre. Views.
The thorax is the midsection of the insect body. It holds the head, legs, wings and abdomen. It is also called mesosoma in other arthropods. It is formed by the prothorax, mesothorax and metathorax and comprises the scutellum; the cervix, a membrane that separates the head from the thorax; and the pleuron, a lateral sclerite of the thorax.
The cervix (or neck of the uterus) is the link between the uterus and the vagina (or birth canal) and is found at the top of the vagina. It is a firm, smooth, rounded structure with a central opening which: 1  dilates (opens up) during labour. 2  allows menstrual blood to flow through it during your periods.hen youâre not pregnant, your uterus is approximately pear-sized. It has a thick muscular wall and a central cavity with a lining that is richly supplied with blood vessels. This lining is known as the endometrium and it provides nourishment for the embryo during the very early days of life.