The trigone of the urinary bladder is created by:
A) the openings to the two ureteral orifices and the internal urethral orifice.
B) the internal and external urethral orifices.
C) the internal and external urethral sphincters.
D) the prostatic, membranous, and spongy urethra.
Answer: A
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Fill in the blank(s) with the appropriate word(s).
Which bone(s) include(s) a manubrium?
A) scapula B) clavicle C) sternum D) cervical vertebrae #1 and #2 E) all of the vertebrae
Which substance is completely reabsorbed in the blood?
A. Creatinine B. Glucose C. Urine D. Urea
The growth rate for a scalp hair is about ________ per day for 18 months to 7 years, and then the hair becomes dormant.
A. 1/2 mm B. 1.0 mm C. 0.75 mm D. 1.0 cm E. 1/3 mm