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Which of the following is not an area that contains lymph nodes?
- a)abdominal cavity
- b)cranial cavity
- c)thoracic cavity
- d)axillary region
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Which of the following is not an area that contains lymph nodes?a) ...
The correct answer is option B, cranial cavity.
Explanation:
Lymph nodes are small, bean-shaped structures that are part of the lymphatic system. They are found throughout the body and play a vital role in the immune response by filtering lymph fluid and trapping foreign substances, such as bacteria and viruses. Lymph nodes contain immune cells called lymphocytes, which help to fight infections and diseases.
Lymph nodes are located in various areas of the body. Let's explore the options provided and identify which of them does not contain lymph nodes:
a) Abdominal cavity: The abdominal cavity is the area within the abdomen, which contains various organs such as the stomach, liver, intestines, and kidneys. Lymph nodes are present in the abdominal cavity and are responsible for filtering lymph fluid from the lower body organs.
b) Cranial cavity: The cranial cavity is the space within the skull that houses the brain. Unlike other body areas, the cranial cavity does not contain lymph nodes. The brain and spinal cord have their own specialized lymphatic system, known as the glymphatic system, which helps to remove waste products from the brain. However, these waste products are not filtered through lymph nodes.
c) Thoracic cavity: The thoracic cavity is the space within the chest that contains the heart, lungs, and other structures. Lymph nodes are present in the thoracic cavity, particularly in the mediastinum, which is the central area of the chest. These lymph nodes help to filter lymph fluid from the chest area.
d) Axillary region: The axillary region refers to the armpit area. It contains a cluster of lymph nodes known as the axillary lymph nodes. These nodes play a crucial role in filtering lymph fluid from the upper limbs, breasts, and other surrounding tissues.
In summary, the cranial cavity is the area that does not contain lymph nodes. The other options provided (abdominal cavity, thoracic cavity, and axillary region) all contain lymph nodes and play important roles in the immune response.
Explanation:
Lymph nodes are small, bean-shaped structures that are part of the lymphatic system. They are found throughout the body and play a vital role in the immune response by filtering lymph fluid and trapping foreign substances, such as bacteria and viruses. Lymph nodes contain immune cells called lymphocytes, which help to fight infections and diseases.
Lymph nodes are located in various areas of the body. Let's explore the options provided and identify which of them does not contain lymph nodes:
a) Abdominal cavity: The abdominal cavity is the area within the abdomen, which contains various organs such as the stomach, liver, intestines, and kidneys. Lymph nodes are present in the abdominal cavity and are responsible for filtering lymph fluid from the lower body organs.
b) Cranial cavity: The cranial cavity is the space within the skull that houses the brain. Unlike other body areas, the cranial cavity does not contain lymph nodes. The brain and spinal cord have their own specialized lymphatic system, known as the glymphatic system, which helps to remove waste products from the brain. However, these waste products are not filtered through lymph nodes.
c) Thoracic cavity: The thoracic cavity is the space within the chest that contains the heart, lungs, and other structures. Lymph nodes are present in the thoracic cavity, particularly in the mediastinum, which is the central area of the chest. These lymph nodes help to filter lymph fluid from the chest area.
d) Axillary region: The axillary region refers to the armpit area. It contains a cluster of lymph nodes known as the axillary lymph nodes. These nodes play a crucial role in filtering lymph fluid from the upper limbs, breasts, and other surrounding tissues.
In summary, the cranial cavity is the area that does not contain lymph nodes. The other options provided (abdominal cavity, thoracic cavity, and axillary region) all contain lymph nodes and play important roles in the immune response.
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Community Answer
Which of the following is not an area that contains lymph nodes?a) ...
The cranial cavity consists of the brain its meninges the blood vessels and the nerves.
As the CNS is the only part of the body where no lymphatic system is found hence option b will be correct.
As the CNS is the only part of the body where no lymphatic system is found hence option b will be correct.
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Which of the following is not an area that contains lymph nodes?a) abdominal cavity b) cranial cavity c) thoracic cavity d) axillary region Correct answer is option 'B'. Can you explain this answer?
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