Hematopoiesis

Hematopoiesis is the process of …

blood cells production

____ replaces cellular marrow in long bones as one ages.

Fat

Adults have _:_ marrow to fat ratio in their bone marrow.

50:50

What are the three phases of hematopoiesis development in a fetus?

mesoblastic (yolk sac phase), hepatic, medullary phase (myeloid phase)

The mesoblastic phase take place in the first _ to _ months.

1, 3

During the mesoblastic phase, cells from the mesoderm migrate to the ___sac.

yolk

The hepatic phase begins at __ to _ gestational weeks.

4 to 5

Extravascular hematopoiesis happens in what organs?

liver or spleen

What is the major site of hematopoiesis during the second trimester of fetal life?

Liver

During the ______ (myeloid phase), mesenchymal cells, which are a type of embryonic tissue, migrate into the core of the bone and differentiate into skeletal and hematopoietic blood cells.

medullary

The _____ theory of hematopoiesis states that all mature blood cells develop from a single common type of stem cell.

Monophyletic

_________ ___ cell can become any cell and can be capable of self-renewel.

Pluripotential

Pluripotential stem cell can replicate by _____ or can proliferates into another cell.

mitosis

Place the following in order:

• metamyelocyte

• Band

• myeloblast

• promyelocyte

• segmented

• myelocyte

1. myeloblast

2. promyelocyte

3. myelocyte

4. metamyelocyte

5. band

6. segmented

A monocyte is an immature _______.

macrophage

A basophil is an _____ cell that is passing through the peripheral blood.

mast

Red bone marrow is haematopoietically ______ and yellow bone marrow is Haematopoietically ______.

active, inactive

What organ is capable of extramedullary hematopoietic production in case of bone marrow shutdown?

liver

what organ is the largest lymphoid organ in the body capable of filtering our dead cells and sequesters our platelets?

spleen

_____ ____ are along the lymphatic system that has encapsulated collection of lymphs, plasma cells, and macrophages.

lymph nodes

______ are the site of lymphocytes proliferation.

lymph nodes

______ are involved in the initiation of the specific immune response to foreign antigens.

lymph nodes

______ filter particulate matte, debris, and bacteria.

lymph nodes

______ is the place of maturation of T lymphocytes.

thymus

_____ are responsible for stimulation or inhibition of production, differentiation, and trafficking of mature blood cells and their precursors.

Cytokines