Which of the following statements are true regarding an ectopic pregnancy?
A. It may involve implantation of the conceptus on the surface of the uterus.
B. It usually begins as a tubal pregnancy.
C. It may end in a live birth by caesarian section.
D. It may involve implantation of the conceptus on the surface of the colon.
E. All of these choices are correct.
Answer: E
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Which of the these blood vessels is not a visceral branch of the thoracic aorta?
A) intercostal arteries B) pericardial arteries C) bronchial arteries D) esophageal arteries E) mediastinal arteries
Shortly after birth the pressure within the right side of the heart rises
Indicate whether this statement is true or false.
Curare
a. strongly binds to acetylcholine receptor sites b. inhibits acetylcholinesterase c. is found in pesticides and military nerve gases d. has characteristics a and b e. has characteristics b and c
Cervical and lumbar enlargements are wide points in the spinal cord marking the emergence of motor nerves
Indicate whether the statement is true or false