What is the lower narrow part of the uterus called?

Several mammary ducts join to form a wider structure called:

Match the following columns:

Column-$I$	Column-$II$
$P$. Infundibulum	$I$. Narrow part of oviduct
$Q$. Ampulla	$II$. Wider part of oviduct
$R$. Isthmus	$III$. Funnel-shaped part of oviduct

The stroma of the ovary consists of nerves,blood vessels,muscle fibres and a type of protein called

The cervix lies between:

$A$ : Presence or absence of hymen is not a reliable indicator of virginity or sexual experience.
$R$ : It can be broken down by a sudden fall or jolt,insertion of a vaginal tampon,or active participation in some sports like horse riding.