muscles contract during normal tidal expiration?

8.  The belly of which of the following muscles is found lateral to the shaft of the tibia?*   A) Gastrocnemius   B) Tibialis posterior   C) Soleus   D) Tibialis anterior     9.  Which of the following muscles originates at the ASIS?*   A) Gracilis B) Rectus femoris C) Sartorius D) Piriformis   10.  Which of the following muscles inserts into the calcaneus by way of the achilles tendon? A) Gastrocnemius B) Tibialis anterior C) Tibialis posterio D) Popliteus   11.  Which hamstring muscle is situated laterally within the group?*   A) Vastus lateralis B) Biceps femoris C) Semimembranosus D) Semitendinosus   12.  Which of the following muscles is deep to the iliotibial band?* A) Semitendinosus B) Vastus intermedius   C) Vastus lateralis   D) Semimembranosus

Both the elastic property of the lung and the air :water interface contribute to the overall recoil of the lung. What are the relative contributions of the elastic property and the air: water interface to the recoil of the lung? A)both contribute equally to the recoil of the lung. B)the elastic tissue contributes ~33% to the recoil of the lung. C)the air:water interface contributes ~33% to the recoil of the lung. D)the elastic tissue contributes ~67% to the recoil of the lung. E)the air:water interface contributes ~90% to the recoil of the lung.   With respect to LaPlace's Law, the amount of pressure needed to keep alveoli open when surfactant is missing will be A)increased B)decreased C)stay the same E)all of the above