The leading amateur - who finished third in the 2012 National aboard Seabass - was taken to Aintree Hospital for two X-rays and a scan, which showed she had a badly bruised arm rather than a broken one.

Reflecting on the tumble, Walsh said: "I feel fine, a bit sore, but I'm 100 per cent. Initially, it wasn't the fall itself that caused the bruising but it was a horse that came along behind me and he galloped all over me.

"I went down to Aintree Hospital and they were unbelievable. I got an X-ray and it came back all clear so we're all good.

"We galloped down to the fence fine but my horse just took off a stride too early and he landed on top of the fence and then speed took over and I was on the floor.

"I was on the ground and before I knew it, all of the paramedics and doctors were over and my arm was a bit sore.

"I was just sore straightaway and before I knew it they put the big screens up around me and I got a fright then, because I wanted to ring my family to let them know I was all right!"

Katie Walsh: "You're more excited riding over the National fences than any other fences. It's the complete buzz of it" pic.twitter.com/j1mGLjsht0

— ITV Racing (@itvracing) April 7, 2017

Asked whether she would ride Cheltenham runner-up Wonderful Charm for Paul Nicholls, Walsh said: "Absolutely. Hopefully, these fences and the atmosphere of the Grand National will spark him up a bit. He stays well and he's a super jumper so I'm really looking forward to it.

"There is only one Grand National and to get the opportunity to ride in the race again is brilliant - everyone wants to ride in it.

"I'm privileged to ride in it as so many people never get the opportunity to ride over these fences."