What is the meaning of "from the boots up" and "from the mane down" in the following sentences(Source: Cowgirl Kate and Cocoa Written by Erica Silverman ),
" 'Are you a real cowgirl?' he asked. 'I am a cowgirl from the boots up,' she said. 'Well, I am a cowhorse from the mane down,' he said. 'Will you work hard every day?' the cowgirl asked. The horse raised his head high. 'Of course,' he said, 'a cowhorse always does his job.' 'At last,' said the cowgirl, 'I have found my horse.' "
Does it mean "I am a cowgirl with the boots up" and "I am a cowhorse with the mane down"?
Does "from" in the sentences mean "with" ?