7) Primary development and vascularization of the lungs is completed at a) 4 wks

Question

7) Primary development and vascularization of the lungs is completed at a) 4 wks b) 8 wks c) 16 wks d) 24 wks e) 36 wks 8) The nasal conchae are associated withair entering the body. a) Humidifying/moisturizing b) Warming c) Removing debris from d) Both A and B e) A, B, and C 9) Balanced pressure is maintained in alveoli by a) Type I cells b) Type II cells c) Macrophages d) Alveolar pores e) Cartilage rings 10) Reducing surface tension in alveoli is achieved via a) Type I cells b) Type II cells c) Macrophages d) Alveolar pores e) Cartilage rings 11) During quiet breathing approximately_mL of gas is moved in & out of the lu a) 500 b) 1200 c) 3100 d) 4800 e) 6000 2) During deep inhalation, which of these willact that normally do not during quiet breathing? a) External intercostals b) Pectoralis muscles c) Diaphragm d) Recoil of the liver e) All of these act during quiet breathing

Explanation / Answer

7- 24 weeks

8- Humidifying/ mosturizing

9- alveolar pores

10- type 2 cells

11- 500 ml

12- pectoralis muscle

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