At what developmental stage does the conceptus implant in the uterine wall?
A. Zygote
B. Blastocyst
C. Trophoblast
D. Morula
E. Embryo
B. Blastocyst
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The direction of the impulse through the conduction system of the heart for each cardiac cycle is normally
a. AV node-SA node-bundle of His-Purkinje fibers. b. AV node-bundle of His-SA node-Purkinje fibers. c. bundle of His-AV node-Purkinje fibers-SA node. d. SA node-AV node-bundle of His-Purkinje fibers. e. SA node-bundle of His-Purkinje fibers-AV node.
The relationship between the knee and the ankle can be described as:
a. the knee is inferior to the ankle b. the knee is distal to the ankle c. the knee is proximal to the ankle d. both A and B above
Which of the following statements concerning the micturition reflex is false?
A. Afferent signals are conducted to the sacral segments of the spinal cord by the pelvic nerves. B. The micturition reflex is modified by centers in the pons and cerebrum. C. Efferent signals are sent to the bladder by sympathetic fibers in the pelvic nerve. D. The micturition reflex is initiated by stretching the bladder wall. E. The micturition reflex usually produces a series of contractions of the urinary bladder.
Lateral to the umbilical abdominopelvic region are the ________ regions.
A. epigastric B. lumbar C. hypochondriac D. iliac E. hypogastric