The lower airway consists of which of the following structures?

25 kg = _______

A) 19.8 lbs B) 55 lbs C) 30.8 lbs D) 90.2 lbs

A laceration that lies perpendicular to the skin's tension lines:

A) results in minimal external bleeding and typically heals spontaneously within 2 to 3 hours. B) generally remains closed and does not require suturing or other methods of wound closure. C) often remains open, heals more slowly, and is more likely to result in abnormal scar formation. D) does not disrupt the body's blood-clotting process and tends to heal without the formation of a scar.