A 54-year-old man comes to a hospital with abdominal pain, jaundice, loss of appetite, and weight loss. On examination of his radiograms and CT scans, a physician finds a slowly growing tumor in the uncinate process of the pancreas. Which of the follow- ing structures is most likely compressed by this tumor?
(A) Main pancreatic duct
(B) Splenic artery
(C) Portal vein
(D) Superior mesenteric artery
(E) Superior pancreaticoduodenal artery
Ans: (D) Superior mesenteric artery
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Lymphatic capillaries
A. include layers of smooth muscle for peristalsis. B. cannot be discerned structurally from cardiovascular system capillaries. C. originate as closed-ended tubes associated with blood capillary networks. D. filter lymph. E. concentrate lymph prior to passing it to larger lymphatic vessels.
________ is the fluid contained in the membranous labyrinth (vestibular apparatus).
Fill in the blank(s) with the appropriate word(s).
The pathologist's report of the dog's intestinal biopsy revealed that the ______________________ membrane of his gastrointestinal tract was severely inflamed
Fill in the blank(s) with correct word
Diseases may arise when proteins fail to fold correctly in their last stages of processing and/or are directed towards the lysosome rather than towards the cell membrane. Cystic fibrosis is an example of this type of disease. In cystic fibrosis, a functional ion channel is sent to the lysosome for destruction rather than being sent to the plasma membrane. Given this observation, the cellular component that is most likely the cause of the disease is the ________.
A)Peroxisomes B)Golgi apparatus C)Ribosomes D)Lysosomes