A diagnostic test in which a needle or catheter is inserted into the cisterna magna to remove fluid is a cerebrospinal fluid ________
Fill in the blank(s) with correct word
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A ________ section would divide the eyes from the back of the head
A) Midsagittal B) Frontal C) Transverse D) Sagittal
Stratified epithelium consists of
A. multiple layers of cells. B. a single layer of cells. C. a single layer of cells that changes shape when the tissue is stretched. D. a multiple layer of cells that appears to change shape when the tissue is stretched. E. None of these choices are correct.
Which statement is incorrect?
A. Endocrine glands lack ducts. B. Hormones may have widespread, distant effects on the body. C. Steroid hormones are carried in the blood by transport proteins. D. A common second-messenger is cyclic AMP. E. The effect of hormones is shorter than the effect of nerve impulses.
In fetal circulation, blood bypasses the lungs by flowing through the ________
A) ligamentum venosum and ligamentum arteriosum B) fossa ovalis and umbilical arteries and vein C) foramen ovale and ductus arteriosus D) ductus venosus and ductus arteriosus E) umbilical vein and umbilical arteries