Identify the indicated structure. #20 202 I.pdf  

The type of antigen-antibody reaction that occurs when antibodies block specific sites on viruses or toxins is referred to as _____________________________.

Identify the indicated structure. #21 202 I.pdf

Identify the indicated blood vessel. #33 202 I.pdf#33 202 I.pdf

You are told that oxygen consumption in hemoglobin is low and carbon dioxide in the same hemoglobin is high. This situation would best be described as an example of:

The smallest passageways leading into the lungs are known as the ________________________________.

The internal nares and auditory tubes are found in the:

Identify the structure labeled at J.

Identify the indicated blood vessel. #44 202 I.pdf

______________________ are protrusions within the nasal cavity that increase mucosal surface area in the nasal cavity and enhance air flow through the cavity.