Which of the following is false concerning lacrimal glands?
A) They produce a strongly hypertonic fluid.
B) They produce most of the volume of tears.
C) They produce lysozyme.
D) They produce watery, slightly alkaline secretions.
E) They are located in recesses in the frontal bones.
A
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A female has a blood test. One mL of her blood is drawn, spun in a centrifuge, and the plasma volume is measured and found to be 0.6 mL. Two months later the same patient returns to the doctor and, after doing another blood test, the doctor tells the patient that she has become anemic compared to her previous visit. Which of the following is most likely to be the woman's hematocrit on the second visit?
A. 70% B. 100% C. 50% D. 0.6 mL E. 35%
Individuals who consume excess carbohydrates can deposit additional triglycerides into their adipose tissue
Indicate whether this statement is true or false.
Which of the following expresses the correct average characteristics and composition of semen?
a. volume, 4 mL; sperm count; 20-100 million/mL b. volume, 0.5 L; sperm count, 10-100 million/mL c. volume, 1 mL; sperm count, 200-600 million/mL d. volume, 4.5 mL; sperm count, 5-10 million/mL
Which statement correctly describes endocytosis?
A. The passive movement of materials out of the cell B. The movement of materials in bulk into the cell C. The movement of small molecules out of the cell D. The movement of materials in bulk out of the cell