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2024/2025 BIO 252 EXAM 3 2024/2025 WITH CORRECT ANSWERS
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2024/2025 BIO 252 EXAM 3 2024/2025 WITH CORRECT ANSWERS
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2024/2025 BIO 252 EXAM 32024/2025 WITH CORRECT ANSWERS
what is hematology - CORRECT ANSWERS- the study of blood
what are the three types of granulocytes - CORRECT ANSWERS-
neutrophils, esosinophils, basophils
what does the circulatory system consist of ? - CORRECT
ANSWERS- heart, blood vessels, and the blood
what is the fundamental purpose of the circulatory system? -
CORRECT ANSWERS- transport substances from place to place in
the body
what are the three main functions of the circulatory system ? -
CORRECT ANSWERS- transport , protection, and regulation
within the plasma are the formed elements.... what are those
elements - CORRECT ANSWERS- red blood cells, white blood
cells, and platelets
what is another name for a red blood cells - CORRECT ANSWERS-
erythrocytes
,what is another name for a white blood cells - CORRECT
ANSWERS- leukocytes
what are the two types of white blood cells - CORRECT ANSWERS-
granulocytes and agranulocytes
what are the two types of agranulocytes - CORRECT ANSWERS-
lymphocytes and monocytes
list five ways in which the circulatory system helps with transport
- CORRECT ANSWERS- 1. blood carries O2 from the lungs to all of
the body's tissue, while it picks up carbon dioxide from those
tissues and carries it to the lungs to be removed from the body
2. picks up nutrients from the digestive tract and delivers them to
all of the body's tissues
3. carries metabolic wastes to the kidneys for removal
4. carries hormones from endocrine cells to their target organs
5. it transports a variety of stem cells from the bone marrow and
other origins to the tissues where they lodge and mature
list 4 ways in which the circulatory system protects the body -
CORRECT ANSWERS- 1. blood plays a role in inflammation
2. white blood cells destroy microoragnisms and cancer cells
3. antibodies and other blood proteins neutralize toxins and help
to destroy pathogens
,4. platelets secrete factors that initiate blood clotting
list 3 ways in which the circulatory system is involved in
regulation - CORRECT ANSWERS- 1. by absorbing or giving off
fluid under different conditions, the blood capillaries help to
stabilize fluid distribution in the body
2. by buffering acids and bases, blood proteins help to stabilize
the pH of the extracellular fluid
3. shifts in blood flow help to regulate body temperature by
routing blood to the skin for heat lost or retaining it deeper in the
body to conserve heat
true or false: adults generally have about 4 to 6 liters of blood. -
CORRECT ANSWERS- true
what is the matrix of the blood called____ - CORRECT ANSWERS-
plasma
____ is a clear, light yellow fluid constituting a litter over half of
the blood volume - CORRECT ANSWERS- plasma
how can you separate elements of the blood - CORRECT
ANSWERS- put a sample into a centrifuge
_____ are the densest formed element and constitute of about 37-
52% of the total volume of a blood sample. - CORRECT ANSWERS-
red blood cells
, the percentage of red blood cells in a sample is called a ___ -
CORRECT ANSWERS- hemacrit
____ and ___ settle into a narrow cream or buff colored zone in a
blood sample. They consists of 1% or less of the blood volume. -
CORRECT ANSWERS- white blood cells and platelets
_____ is at the top of the tube in a sample of blood and is the least
dense. it accounts for 47-63% of the blood volume - CORRECT
ANSWERS- plasma
_____ is a complex mixture of water, proteins, nutrients,
electrolytes, nitrogenous waste, hormones, and gases. - CORRECT
ANSWERS- plasma
when the blood clots and solids are removed, the remaining fluid
is blood ____. - CORRECT ANSWERS- serum
what makes serum different from plasma - CORRECT ANSWERS-
it lacks the clotting protein fibrinogen
what are some functions of the plasma proteins - CORRECT
ANSWERS- clotting, defense, transport of other solutes such as
iron, copper, lipids, and hydrophobic hormones
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