Question

The main haematopoietic organ in human embryo is

• A. Bone marrow
• B. Spleen
• C. Kidney
• D. Liver

Answer 1

The correct option is D

Liver

Explanation for Correct option:

Option D:

1. The main hematopoietic organ in the fetal stage is generally the liver.
2. Other hematopoietic organs during fetal life- thralldom sac, spleen, lymph bumps, red bone gist.
3. Hematopoiesis occurs later in red blood cells after birth.
4. The liver primarily serves to cover the fetus during a significant period of antenatal development in mammals.

Explanation for Incorrect option

Option A:

1. The main hematopoietic organ in the fetal stage is generally the liver.
2. In the fetal stage, hematopoiesis does not do in the feathers.

Option B:

1. The spleen and bone gist are involved in hematopoietic organs during fetal life.
2. But if we talk about Maine tissue it will be the liver.

Option C:

1. Myeloblasts are called bone gist hemocytoblasts.
2. Hematopoiesis occurs latterly in red blood cells after birth.
3. Most hemopoiesis in the bone gist occurs after parturition.

Final Answer: The main hemopoietic organ in a mortal embryo is the liver.