Oral contraceptives may cause
A. breast tenderness.
B. pregnancy, as they have a high (21 in 100 women) rate of failure.
C. loss of bone density.
D. intrauterine damage.
Answer: A
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The upper respiratory tract includes all of the following except the:
a. nose b. trachea c. pharynx d. larynx
The correct sequence of preembryonic structures is ________
A) zygote, morula, blastocyst B) morula, zygote, blastocyst C) morula, blastocyst, zygote D) zygote, blastocyst, morula
Over 60% of all brain cells are neurons
a. True b. False Indicate whether the statement is true or false
Parasympathetic innervation to the hindgut originates in the S2-S4 spinal cord segments. Parasympathetic neurons travel to the prevertebral plexus via which of the following nerves?
A. Greater splanchnic nerves B. Least splanchnic nerves C. Lesser splanchnic nerves D. Lumbar splanchnic nerves E. Pelvic splanchnic nerves F. Sacral splanchnic nerves