Assertion: parietal pleura's portion | /r/HasProperty | attached in front
Facets:
Source sentences:
text: above the sternal end of the first rib; this portion of the sac is strengthened by a dome-like expansion of fascia (Sibsons fascia), attached in front to the inner border of the first rib, and behind to the anterior border of the transverse process of the seventh cervical vertebra.