In mammals, the __________ is the main blood vessel leading from the lungs to the heart
Fill in the blank with correct words.
Answer: Pulmonary vein
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What term is used to indicate the immunity was acquired through someone or something else?
A. Active B. Artificial C. Passive D. Natural
The tricuspid valve is closed ________.
A) while the ventricle is in diastole B) when the ventricle is in systole C) while the atrium is contracting D) by the movement of blood from atrium to ventricle
Salivary Secretions - Mucous Cells
What will be an ideal response?
Chemotaxis:
A. refers to the chemical attraction of neutrophils to a site of inflammation. B. is important only for innate immune responses. C. is important only for adaptive immune responses. D. refers to the engulfing of microbes and foreign molecules by macrophages. E. refers to dilation of blood vessels by chemicals released by damaged tissue cells.