The two major causes of infertility in females are blocked oviducts and failure to ovulate due to low body weight.
a. true
b. false
Ans: b. false
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Which of the following is considered a fluid?
A. air B. water C. molasses D. all of the above
Compare nicotinic receptors and muscarinic receptors
A) Nicotinic receptors are acetylcholine receptors on the surface of sympathetic and parasympathetic ganglionic cells. Muscarinic receptors are acetylcholine G protein-coupled receptors located at all parasympathetic neuromuscular and neuroglandular junctions, and at a few sympathetic neuromuscular and neuroglandular junctions. B) Nicotinic receptors are acetylcholine G protein-coupled receptors located at all parasympathetic neuromuscular and neuroglandular junctions, and at a few sympathetic neuromuscular and neuroglandular junctions. Muscarinic receptors are acetylcholine receptors on the surface of sympathetic and parasympathetic ganglionic cells. C) Nicotinic receptors binds epinephrine on the membrane of sympathetic target cells. Muscarinic receptors binds norepinephrine on the membrane of sympathetic target cells. D) Nicotinic receptors binds norepinephrine on the membrane of sympathetic target cells. Muscarinic receptors binds epinephrine on the membrane of sympathetic target cells. E) Nicotinic receptors binds norepinephrine and epinephrine on the membrane of sympathetic target cells. Muscarinic receptors are acetylcholine receptors on the surface of sympathetic and parasympathetic ganglionic cells.
Describe the orientations of phospholipids and glycolipids when they form a micelle
A) The hydrophobic tails are inside, and the hydrophilic heads form the surface of the micelle. B) The hydrophilic tails are inside, and the hydrophobic heads form the surface of the micelle. C) The hydrophobic heads are inside, and the hydrophilic tails form the surface of the micelle. D) The hydrophilic heads are inside, and the hydrophobic tails form the surface of the micelle. E) The phospholipids are on the inside, and the glycolipids form the surface of the micelle.
Three individuals, each weighing 55 kg and each having a plasma [Na+] of 145 mEq/L, are infused with different solutions
Individual A is infused with 1 L of isotonic NaCl (290 mOsm/kg H2O); individual B is infused with 1 L of a mannitol solution (290 mOsm/kg H2O); and individual C is infused with 1 L of a D5W (5% dextrose) solution (290 mOsm/kg H2O). Assuming that there is no urine output, and after complete equilibration of the ECF and ICF, which of these individuals will have a lower plasma [Na+]? A. individual A (NaCl infusion) B. individual B (mannitol infusion) C. individual C (D5W infusion) D. individuals A, B, and C will have the same plasma [Na+]