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A unique characteristic of the stomach’s mucosa (something only found in the stomach) is the presence of:

State of Florida communication requirement: Please provide responses in COMPLETE sentences using your best college-level writing skills.  Scoring is based on spelling, punctuation and grammar, in addition to accurate scientific terminology. Describe the a) structure and b) function of both the axons and dendrites of neurons (at least one structural and functional characteristic of each).

Pulmonary surfactant is a chemical secreted to help reduce this ventilation-affecting factor:

What is the structure that keeps food out of the trachea when swallowing?

Which digestive layer is responsible for peristalsis?

When you contract your diaphragm and external intercostals, you expand the thoracic cavity.  This creates ______ pressure in the lungs.

Which stomach cells make hydrochloric acid?

Describe two ways by which the motor and/or autonomic nervous systems use negative feedback mechanisms to achieve a particular goal and/or maintain homeostasis.

Which of the following was NOT one of the reasons that Pope Urban II gave in his decision to proclaim a crusade against the Muslim Turks?

Questions from Dr. Shyam Mohapatra Select two from following three questions (12-14)    12. (14 pts): “Despite the lack of an inherent mechanism of generating diversity as T and B cells, the members of MHC class of proteins generate substantially higher diversity to present the vast universe of peptides.” Explain this statement? What are the mechanisms in place that make this possible?   13. (14 pts): Consider the claim “T cell effector functions are primarily mediated by secreted products”. To what extent is this statement true for CD4 cells and CD8 T cells? Provide one example for each of these cell types that justify the above statement.   14. (a) (7 pts): How would you identify Th1/TH1 and Th2/TH2 cells and how these cells differ in their effector functions?         (b) (7 pts): Explain the clinical importance of the TH1 and TH2 cells with one example each of a disease.