In fetal circulation, the ________ bypasses the liver and the ________ bypasses the lungs
A) foramen ovale; ductus venosus
B) ligamentum arteriosum; foramen ovale
C) ductus arteriosus; ductus venosus
D) ductus venosus; ductus arteriosus
E) ligamentum venosum; ligamentum arteriosum
D
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When a skeletal muscle fiber contracts, the
A) H bands and I bands get larger. B) zones of overlap get larger. C) Z lines move further apart. D) width of the A band increases. E) All of the answers are correct.
________________________________________ is elevated blood estrogen levels seen in intact cycling female ferrets that are not bred
Fill in the blank(s) with correct word
The term used to describe the amount of blood in the ventricle available to be pumped out of the heart during the next contraction is
A) cardiac output (CO). B) stroke volume (SV). C) end-systolic volume (ESV). D) end-diastolic volume (EDV). E) heart rate (HR).
Which statement about blood is true?
A) Oxygen is transported by the leukocyte. B) Leukocytes are the most common cell in blood. C) The neutrophil is the rarest type of white blood cell. D) Red bone marrow produces erythrocytes, leukocytes, and thrombocytes.