Indicate whether each of the following statements regarding calcium signaling is likely to be true or false.   Calmodulins are cytoplasmic signaling proteins that sense the change in cytoplasmic [Ca2+] and relay the signal to downstream factors. Each calmodulin has two calcium-binding sites. [1] Calcium pumps are only present in the plasma membrane. [2] The ER is not involved in calcium signaling. [3]  Right after fertilization, the increase in cytoplasmic [Ca2+] in the egg cell results in the change in the surface structure of the egg, which helps to prevent polyspermy. [4]

What are the structures indicated by the letters A-B? Select from the two options provided for each. [1] [2]

Match the appropriate letters to the structures of the larynx. question21.jpg 

For a 55 kg (121 lb) patient whose tidal volume is 335 mL and respiratory rate of 24, what is the VA (alveolar ventilation) per MINUTE?

The canals of Lambert are found in the:

Cartilage is found in which of the following structures of the tracheobronchial tree?  (Choose all that apply).

All of the following are paired cartilages in the larynx EXCEPT:

Which is NOT one of the unpaired cartilages in the larynx?

Matching the following upper airway structures. question28a.jpg 

Special structures found in the terminal bronchioles that secrete a moistening fluid that also neutralize toxic substances are called: