Question at position 26 The bright red, oxygenated hemoglobin travels to the __________ tissues, where it releases some of the oxygen molecules.BrainBodyLungsHeart单项选择题
A
Brain
B
Body
C
Lungs
D
Heart

Question

Question at position 26 The bright red, oxygenated hemoglobin travels to the __________ tissues, where it releases some of the oxygen molecules.BrainBodyLungsHeart

BlackTom AI · Accepted Answer

To tackle this question, we start by recalling the path of oxygenated blood after it leaves the lungs via the arteries and travels to body tissues to deliver oxygen.
Option Brain: While the brain does receive oxygenated blood, the statement asks for the general destination of oxygen release to tissues. Saying Brain would misidentify the broader systemic target; oxygen is delivered to many tissues, not exclusively the brain.
Option Body: This is the correct choice because systemic circulation delivers oxygen-rich blood to all peripheral tissues throughout the body, and oxygen is released from hemoglobin to these tissues as needed for cellular respiration.
Option Lungs: The lungs are where blood picks up oxygen, not where oxygenated blood releases its oxygen to tissues. This option confuses the site of gas exchange (lungs) with the site of oxygen delivery (body tissues).
Option Heart: The heart itself receives oxygenated blood via the coronary circulation, but the heart muscle still receives oxygen through its own vascular supply. It is not the primary site described by the statement, which refers to peripheral tissue delivery rather than myocardial circulation.

Question at position 26 The bright red, oxygenated hemoglobin travels to the __________ tissues, where it releases some of the oxygen molecules.BrainBodyLungsHeart单项选择题

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