Which type of cells carry oxygen and carbon dioxide?
A) bone cells
B) fat cells
C) muscle cells
D) white blood cells
E) red blood cells
Answer: E
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When the body is placed in the anatomical position, which of the following is not true?
A. The body is erect. B. The head is facing to the front. C. The palms are facing backward. D. The upper limbs are at the sides.
Mechanoreceptors translate mechanical signals into electrical signals when pressure on the cell
A) Activates a G-protein signal transduction cascade. B) Disrupts stability of the lipid bilayer, causing ions to flow. C) Induces a conformational change in ion channels, allowing ions to flow. D) Induces a change in cell volume that disrupts ion balance.
Nurse Cameron has been asked to mix an isotonic intravenous solution for an emergency room patient who has lost a lot of blood. The available solutes include glucose (m.w. 180), NaCl (m.w. 58.5), and urea (m.w. 60). How should she make up 10 L of IV solution with an osmolarity of 290 mOsm (isosmotic), making sure that it will also be isotonic?
What will be an ideal response?
Which is an example of long-loop negative feedback?
A. stimulation of dopamine release by prolactin B. inhibition of growth hormone-releasing hormone (GHRH) release by growth hormone (GH) C. inhibition of growth hormone-releasing hormone (GHRH) release by insulin-like growth factor-1 D. inhibition of corticotropin-releasing hormone by adrenocorticotropic hormone (ACTH) E. stimulation of thyroid-stimulating hormone (TSH) release by thyrotropin-releasing hormone (TRH)