Which of the following phenomena is most likely occurring during a child's alveolar stage of lung development?
A)
Terminal alveolar sacs are developing, and surfactant production is beginning.
B)
A single capillary network exists, and the lungs are capable of respiration.
C)
The conducting airways are formed, but respiration is not yet possible.
D)
Primitive alveoli are formed, and the bronchi and bronchioles become much larger.
Ans:
B
Feedback:
During the alveolar stage of lung development from late fetal to early childhood, a single capillary network appears, and the lungs are ready to perform respiration. The development of alveolar sacs and production of surfactant are associated with the saccular period, and formation of the conducting airways occurs during the pseudoglandular period. Formation of primitive alveoli takes place during the canalicular period.
You might also like to view...
The critical care nurse is caring for a patient with cirrhosis. What is a priority nursing function when caring for a patient with cirrhosis?
A) Monitoring the patient's oral intake B) Monitoring the patient's social support network C) Monitoring the patient for signs of hypervolemia D) Monitoring the patient's mental status
When both parents have sickle cell trait, which is the chance their children will have sickle cell anemia?
a. 25% b. 50% c. 75% d. 100%
In the immediate postoperative period, what activity is permitted for the client who had a radical inguinal orchiectomy?
a. ambulation within 8 hours b. bed rest for 12 to 24 hours c. sitting up at the bedside within 6 hours d. wearing an athletic supporter before ambulating for the first time
A client's fetal heart rate tracing has a consistent late deceleration pattern. What actions should the nurse take at this time? Select all that apply
1. Prepare for cesarean birth. 2. Increase intravenous fluids. 3. Monitor maternal blood pressure. 4. Position client on the left side. 5. Apply oxygen 7 to 10 L via face mask.