Assertion: external ear | /r/CapableOf | give rise
Facets:
value: to most of the helix
type: TRANSITIVE-OBJECT
Source sentences:
text: The external ear is developed from ectodermal and mesodermal components of the first and second branchial arches and the intervening first branchial groove.8,9 Distinct condensations of tissue, known as the hillocks of His, give rise to the tragus and most of the helix from the first branchial arch, and to the antihelix, antitragus, lobule, and inferior helix from the second branchial arch.