The image shows the circulation of blood in fishes and humans. How is the circulations of blood in fish different from that in humans?
The heart in fish is bigger in size.
The flow of blood in fish is
unidirectional.
The blood goes through heart only once in fishes.
The heart of fish has more chambers compared to that of a human
Answers
Answer: The correct option is The flow of blood in fish is unidirectional.
Circulatory System: The circulatory system of most animals consists of two branches: pulmonary circulation, which transports blood from the heart to the lungs and back, and systemic circulation, which transports blood from the heart to the rest of the body and its organs, including the brain (systemic circulation).
Explanation:
- Fish: When blood leaves the body through an artery, it travels away from the body, while when blood returns to the heart.
- Then it travels through a vein.
- It is generally accepted that fish have only a single circulation due to the fact that blood only passes through the heart once during each complete body circuit.
- A drawback is the low blood pressure that comes about as a result of the small capillaries in the gills.
- Human: Organ responsible for blood circulation is heart in a human body. The heart pumps blood to both the brain and the rest of the body, carrying oxygen-rich blood to the muscles and organs that need it and sending the blood that needs oxygen to the lungs.
- The right atrium is the first to receive blood from the body, followed by the right ventricle and the pulmonary arteries.
- After picking up oxygen, blood is sent back to the heart via the pulmonary veins, left atrium, left ventricle, and aorta.
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Answer:
blood flow is unidirectional
Explanation:
Fish: When blood leaves the body through arteries, it returns to the heart.
It then travels through the veins.
It is generally accepted that fish have only one circulatory system. This is because blood passes through the heart only once each cycle of her body.
The disadvantage is hypotension caused by small capillaries in the gills.
Human: The organ responsible for blood circulation is the human heart. The heart pumps blood to both the brain and other parts of the body, carrying oxygen-rich blood to muscles and organs that need it, and oxygen-needing blood to the lungs.
The right atrium receives blood from the body first, followed by the right ventricle and the pulmonary artery.
After oxygenation, blood is returned to the heart via the pulmonary veins, left atrium, left ventricle, and aorta.