I think blood forms in bonemarrow.
Blood cells are formed in red bone marrow of long and other bones . some Blood cell mature in lymph nodes , thymus gland (and Bursa of Fabricious in birds)
A formed element
the adult human has about 5 to 6 liters of blood
red blood cells are formed bone marrow of long bones such as the arm bone, vertebrae, and leg bone.
red blood cells are formed bone marrow of long bones such as the arm bone, vertebrae, and leg bone.
8 pints of blood10 litres of blood on average in an adult and 7 or lower in a child
Blood accounts for about 8% of the human body weight. The average adult has a blood volume of about 5 liters (1.3 gallons).
The adult human has 5 litres of blood.
Less
For an average adult human, 5 percent of the blood supply enters or leaves the heart with each heartbeat.
The average adult human body contains about 5 litres of blood.
the average adult has ten pints of blood.