<span>The diagnostic procedure Rachel will immediately receive is a breast exam by a doctor, and this may be followed up with a mammogram, or alternatively a breast ultrasound (these are more effective for younger women). A mammogram uses an X-ray to create a picture of your breast. </span>
Uh…………. Sorry no clue to what this is thought I did…
Answer:
To allow air to enter into the bag and provide air and breathing room for the vegetables.