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In which of the following do red blood cells originate?
নিম্নলিখিত কোন স্থানে লোহিত রক্তকণিকা উৎপন্ন হয়?
Practice MCQ for SSC, UPSC, RRB Exams
A. Bone Marrow
A. অস্থিমজ্জা
B. Brain
B. মস্তিষ্ক
C. Ligaments
C. লিগামেন্ট
D. Muscles
D. পেশী
Correct Answer: A
সঠিক উত্তর: A
Explanation
ব্যাখ্যা
Red blood cells (RBCs)
are also known as
erythrocytes
.
They are responsible for transporting
oxygen
from the lungs to different parts of the body.
Red blood cells are produced by a process called
hematopoiesis
.
This process takes place in the
bone marrow
, especially in the red bone marrow of long bones, ribs, and pelvis.
Bone marrow
contains stem cells that differentiate into red blood cells.
Brain
,
ligaments
, and
muscles
do not produce blood cells.
Hence, red blood cells originate in the
bone marrow
.
লোহিত রক্তকণিকা (RBC)
কে
এরিথ্রোসাইট
ও বলা হয়।
এদের প্রধান কাজ হলো
ফুসফুস থেকে শরীরের বিভিন্ন অংশে অক্সিজেন পরিবহন করা
।
লোহিত রক্তকণিকা তৈরির প্রক্রিয়াকে বলা হয়
হিমাটোপোইসিস
।
এই প্রক্রিয়াটি ঘটে
অস্থিমজ্জায়
, বিশেষ করে লম্বা হাড়, পাঁজর ও পেলভিসের লাল অস্থিমজ্জায়।
অস্থিমজ্জায়
থাকা স্টেম সেল থেকে লোহিত রক্তকণিকা তৈরি হয়।
মস্তিষ্ক
,
লিগামেন্ট
এবং
পেশী
রক্তকণিকা উৎপন্ন করে না।
অতএব, লোহিত রক্তকণিকা উৎপন্ন হয়
অস্থিমজ্জায়
।
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