Please mark your agreement with the following statement: I understand that the Unit 3 / Final Exam is an assessment of my knowledge and application of nutrition across the life span. I must complete this exam on my own, under the supervision of the exam proctor, without any external collaboration. I may refer to my notes page during the exam, but I will do my own work, and I will not share my answers with others. If I have questions about the exam, I will ask for help from the instructor. 

The small, well-defined area on the medial aspect of each lung, where the bronchus, vessels and nerves enter, is called what?

Which of the following is NOT a secondary function of the respiratory system?

All of the following are part of the upper respiratory system, EXCEPT?

12. In problem 9, In the previous problem, is the flexural bending stress at C positive or negative? Is it in the x, y, or z direction?

What is the name of the fluid that lines the alveoli that keeps them from collapsing?

14. (3 bonus points to exam 2) A point in a structure sees the following stresses σx = 1 ksi, σy = 2 ksi, σz = 3 ksi. What are the associated strains εx, εy, εz, knowing the modulus of elasticity is 30ksi and Poisson’s ratio is 0.3. If for a different point in the same structure with the same material, the strains are εx = 0.001, εy = 0.002, εz = 0, what are the σx, σy, σz stresses at that point?

What is medical term for fluid within the lungs?

8. (10 points) For the beam in problem 5, what is the magnitude of the transverse shear stress in Segment 1 (0 < x < 1 m) at a location on the square cross section where the I = 8∙10-10 m4, Q = 1.25∙10-7 m5, the height and width of the square cross-section are 0.01 m.  Show all your work and calculations. Upload together with other solved problems at the end of this exam. 

4. (15 points) Draw the shear diagram for the beam subjected to the loading conditions shown in the Figure below. Specify the shear value throughout the beam. If the shear value changes through a segment, call out the beginning and end values of the shear on that segment. If the shear value is zero at a point in a segment, specify the location where that occurs. Show all your work. Upload together with other solved problems at the end of this exam.