In front, the greater alar cartilages are separated by a notch which corresponds with the apex of the nose.
The rhombencephalon folds posteriorly, which causes its alar plate to flare and form the fourth ventricle of the brain.
The ventral (front) part of the neural tube is called the basal plate; the dorsal (rear) part is called the alar plate.
Alar municipality once had up to 30 factories and more than 2000 people dedicated to this activity.
The alar ligament is also known as the check ligament of the odontoid.
Laterally of this are a pair of alar folds.
The nostrils have an outer ring made of cartilage (the alar cartilage), which serves to hold them open during inhalation.
Alar ligaments: stress or trauma can stretch the weaker alar ligaments, causing an increase in range of motion of approximately 30%.
