The Blood-Formed element-Day 1

Structure of the

Blood

Erythrocytes

●Manufactured in the bone marrow

●Start out as a large, immature cell called a blast
which shrinks as it matures

●Contain hemoglobin, which allows them to carry
oxygen

●Transport oxygen and carbon dioxide throughout the
body

●Lives for approximately 120 days before it is
destroyed in the liver

Fill in the Blank

Another name for an erythrocyte is

Multiple Choice

The normal range for erythrocytes is

• 4.0-5.5 million

• 45-110 million

• 40-55 million

• 1-2 thousand

Fill in the Blank

Where are RBCs destroyed?

Multiple Choice

Hemoglobin is a protein that allows the erythrocyte to carry

• oxygen

• nitrogen

• potassium

• sodium

Leukocytes

●Manufactured mainly in the bone marrow

●Responsible for immunity

●Live for only a few days to a few weeks

●Types include

○ Polymorphonuclear

■Nucleus made up of multiple segments

■Also called granulocytes

○ Mononuclear

■ Only have one nucleus

■ Also called agranulocytes

(Continued)

Multiple Choice

The normal range for leukocytes is

• 4500-11000

• 4.5-11 million

• 1-2 million

• 4.0-5.5 million

Multiple Choice

Leukocytes are responsible for

• immunity

• carrying oxygen

• clotting

• have no function

Match

Match the following

• polymorphonuclear

• mononuclear

• granulocytes

• agranulocytes

nucleus is made up of multiple segments

only has one nucleus

cytoplasm is filled with granules

cytoplasm has no granules

• nucleus is made up of multiple segments

• only has one nucleus

• cytoplasm is filled with granules

• cytoplasm has no granules

Fill in the Blank

The normal lifespan of a leukocyte is

Leukocytes

●Granulocytes

○ Neutrophils

■ Phagocytes; target bacteria & fungi

○ Eosinophils

■ Target parasites & allergic reactions

○ Basophils

■ Release histamine (during an inflammatory response) & heparin (coagulation)

●Agranulocytes

○ Lymphocytes (B cells, T cells and Natural killer cells)

○ Monocytes (macrophages)

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Match

Match the following

• pathogen

• histamine

• heparin

• lymphocytes

• monocytes

disease-causing microorganism

chemical released during an inflammatory response

prevents coagulation

immune surveillance

large, single nucleus phagocyte

• disease-causing microorganism

• chemical released during an inflammatory response

• prevents coagulation

• immune surveillance

• large, single nucleus phagocyte

Match

Match the following

• neutrophil

• eosinophil

• basophil

• lymphocytes

• monocytes

target bacteria & fungi

target parasites & allergic reactions

release histamine & heparin

B cells, T cells and natural killer cells

large, single nucleus phagocyte

• target bacteria & fungi

• target parasites & allergic reactions

• release histamine & heparin

• B cells, T cells and natural killer cells

• large, single nucleus phagocyte

Thrombocytes

●Cell fragments that
have broken off of
megakaryocytes

●Aid in coagulation
(blood clotting)

Fill in the Blank

The function of a thrombocyte is