What is the function of the ductus venosus?
A. It is a shunt between the right and left atria that bypasses the fetal lungs.
B. It is a shunt that flows between the umbilical vein and inferior vena cava and bypasses the liver.
C. It is a shunt between the umbilical vein and aorta that rapidly passes maternal blood to the fetus.
D. It is a shunt between the pulmonary trunk and the aorta that bypasses the fetal lungs.
E. It is a shunt between the superior vena cava and aorta that rapidly passes maternal blood to the fetus.
B. It is a shunt that flows between the umbilical vein and inferior vena cava and bypasses the liver.
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Compared to young adults, older individuals have relatively less red bone marrow
Indicate whether this statement is true or false.
Select the statement which is false
A) Meiosis II is essential the same process as mitosis except the starting cells are haploid (n). B) Further genetic variation typically does not occur after meiosis I. C) Crossing over is a source of genetic variability seen in meiosis while independent assortment is a source of genetic variability seen in mitosis. D) Meiosis II is essential the same process as mitosis except the genetic material will not replicate before division takes place.
Which part of the brain controls thirst and urine output, food intake, and body temperature, among other things?
a. cerebral cortex b. hypothalamus c. basal nuclei d. thalamus e. pons
Ablation of the celiac ganglia would inhibit sympathetic regulation of the ________.
A. bladder B. adrenal glands C. heart D. kidneys