Post excerpt from recent updated blogs

<h2>Blogs recently updted:</h2>

<?php
$blogs = get_last_updated();
if( is_array( $blogs ) ) {
	?>

	<p><ul><?php foreach( $blogs as $details ) {
		?><li><a href="http://<?php if ($details[ 'path' ]!="/blogs/") echo $details[ 'domain' ] . $details[ 'path' ] ?>"><?php if ($details[ 'path' ]!="/blogs/") echo get_blog_option( $details[ 'blog_id' ], 'blogname' ) ?></a></li><?php
	}
	?></ul></p>

Shows recent updated blogs. Instead I want to show the recent updated blog posts (rather than the blogs itself) with excerpt. How shall I proceed?

Thanks.