Name the blood vessel referred to in each of the following cases:
(i) The vein connected to the lungs - Leaving Cert Biology - Question 13 - 2009
Question 13
Name the blood vessel referred to in each of the following cases:
(i) The vein connected to the lungs.
(ii) The artery connected to the kidneys.
(iii) The vein that ... show full transcript
Worked Solution & Example Answer:Name the blood vessel referred to in each of the following cases:
(i) The vein connected to the lungs - Leaving Cert Biology - Question 13 - 2009
Step 1
Name the blood vessel referred to in each of the following cases:
(i) The vein connected to the lungs.
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Answer
The blood vessel referred to is the Pulmonary vein.
Step 2
(ii) The artery connected to the kidneys.
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Answer
The blood vessel referred to is the Renal artery.
Step 3
(iii) The vein that joins the intestine to the liver.
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Answer
The blood vessel referred to is the Hepatic Portal vein.
Step 4
Give the precise location of the heart in the human body.
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Answer
The heart is located in the thorax, specifically between the lungs, and is protected by the rib cage.
Step 5
(ii) What structure(s) protects the heart?
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The heart is protected by the rib cage and the pericardium.
Step 6
(iii) Name the upper chambers of the heart.
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The upper chambers of the heart are the left and right atria (or auricles).
Step 7
(iv) Name the valve between the upper and lower chambers on the left-hand side.
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Answer
The valve between the upper and lower chambers on the left-hand side is called the Bicuspid valve or Mitral valve.
Step 8
(v) What is the average resting human heart rate?
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Answer
The average resting human heart rate is typically between 60 to 75 beats per minute.
Step 9
(vi) Give two factors which cause an increase in heart rate.
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Answer
Factors that can cause an increase in heart rate include exercise, anxiety, drugs, or infection.
Step 10
(vii) Name the blood vessels that bring oxygen to the heart muscle.
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Answer
The blood vessels that bring oxygen to the heart muscle are the Coronary arteries.
Step 11
(viii) Explain why the walls of the lower chambers of the heart are thicker than the walls of the upper chambers.
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Answer
The walls of the lower chambers (ventricles) are thicker because they need to pump blood out of the heart to the lungs and the rest of the body, requiring more pressure compared to the upper chambers (atria) which only receive blood.
Step 12
Copy the table below into your answerbook and use your knowledge of blood vessels and the information in diagrams A, B and C to complete the table.
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Answer
Vessel
A
B
C
Name
Artery
Large Vein
Capillary
Lumen
Large
Small
Very Thin (one cell thick)
Wall
Thick
Thin(n)
Very Thin
Direction of blood flow
From Heart
To Heart
To Tissue
Valves present
No
Yes
No
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