What is the foramen ovale? What is its fate after birth?
What will be an ideal response?
The foramen ovale is a temporary opening in the wall separating the right and left atria of the heart of a fetus. It allows oxygenated blood (originally from the umbilical vein) from the inferior vena cava to pass directly from the right atrium to the left atrium of the heart and thus bypass the lungs. After birth, it closes and becomes the fossa ovale.
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Possible causes of respiratory acidosis include fever, anxiety, and aspirin poisoning
a. True b. False Indicate whether the statement is true or false
A cartilage forming cell is known as a _____.
a) hemocytoblast b) osteoblast c) fibroblast d) chondroblast
Which of the following are involved in the initiation step of translation? select all that apply.
a) mRNA b) DNA c) RNA polymerase d) ribosomal subunits e) methionine f) initiator tRNA
The __________ are the photoreceptors responsible for night vision.
Fill in the blank(s) with the appropriate word(s).