Pulmonary arteries carry deoxygenated blood from the right ventricle to the lungs.
Answer the following statement true (T) or false (F)
True
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The delta cells of the pancreatic islets produce
A) insulin. B) glucagon. C) somatostatin. D) cortisol. E) peptide P.
When the ions move across the cell membrane, an electrical potential change results. As you are probably aware, nerves trigger muscle movement. When you place your finger on a sharp object (such as a tack), you quickly draw your hand away and develop a sensation of pain. Which types of channels are operating under these conditions to allow nerve conduction and subsequent muscle movement?
What will be an ideal response?
Sally is an avid jogger and she trains incessantly. She has slimmed down so that she is now underweight for her height and has very little fat tissue. You would expect Sally to
A) have heavy menstrual flows. B) show elevated levels of FSH. C) have painful menstrual cramps. D) be amenorrheic. E) double ovulate.
To determine that a type of epithelium is squamous, which of the following is most important?
A. the number of cell layers B. the shape of most of the epithelial cells C. the shape of the most superficial epithelial cells D. the shape of the basal epithelial cells E. the shape of the basement membrane