What prevents the eyelids from sticking together when the eyes close?
A) tarsal gland secretions
B) lacrimal fluid
C) ciliary gland secretions
D) conjunctival fluid
A
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Below the level of the foramen magnum, the meningeal layer of the dura mater covers the spinal cord.
Answer the following statement true (T) or false (F)
Which hypothalamic nucleus is responsible for regulating circadian rhythms?
A) suprachiasmatic nucleus B) preoptic area C) autonomic nucleus D) paraventricular nucleus E) tuber cinereum
Miguel is a 25-year-old jogger with a target heart rate of 125 bpm. His resting pulse is 70 bpm. His blood volume is approximately 6.8 liters. At rest, his cardiac output is 6.3 liters/min.
A. What must his stroke volume be? B. What might his EDV and ESV be? C. During his workout, his heart rate increases to 125 bpm and his cardiac output to 12,500 mL/min. Do his SV, EDV, and ESV change with exercise?
What is a malignant tumor derived from epithelial tissue?
A. Lymphoma B. Carcinoma C. Melanoma D. Sarcoma E. Both "Carcinoma" and "Sarcoma" are correct.