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Copy of Blood - Videos (5/28/2026)

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Last updated 20 days ago
2 questions
Directions:
  • The videos will not self-pause, but the questions are in order.
  • You need to read one or two questions ahead and listen for them in the video.
  • Pause the video to answer each question and repeat.
  • Everything is answered in the video.
Question 1
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Question 1
1.
Question 2
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Question 2
2.
a. Blood is something that everyone requires, and at times, due to _______ or _______ , we may need additional blood.

b. In the U.S., a blood transfusion is needed every _______ seconds.

c. Cancer patients often need new blood to maintain their health during _______ .

d. Nearly _______ million pints of blood are required annually in the U.S. from donors.

e. Blood is described as red, sticky, salty, and having a somewhat _______ taste.

f. Blood accounts for about _______ percent of your body weight.

g. Blood is classified as a type of _______ tissue, consisting of living cells suspended in a nonliving matrix.

h. One of the primary functions of blood is to transport and distribute _______ , nutrients, waste products, and hormones.

i. The process of donating blood typically takes around _______ minutes.

j. The centrifuge separates blood into three distinct layers: erythrocytes at the bottom, leukocytes in the middle, and _______ at the top.

k. Erythrocytes, which carry oxygen and carbon dioxide, make up about _______ percent of total blood volume.

l. Plasma consists of about _______ percent water, with the remaining portion containing various solutes.

m. Plasma proteins, such as albumin and globulins, are primarily produced by the _______ .

n. The process that prevents excessive blood loss is known as _______ .

o. Before donating blood, it is essential to know your blood type, which can be A, B, AB, or _______ .

p. Individuals with AB blood type are known as _______ because they can accept blood from _______ .

q. Type O blood is referred to as the _______ , as it can mix with other types without causing an immune response.

r. The presence of Rh antigens determines if a person is _______ positive or negative.

s. This discussion has covered the components of blood, including erythrocytes, leukocytes, platelets, and _______ .
a. Erythrocytes make up nearly _______ percent of blood volume.

b. The primary role of erythrocytes is to ensure that your body receives enough _______ .

c. Erythrocytes exist as hollow cells due to the demands of their _______ .

d. Red blood cells have a unique _______ shape that helps them with _______ .

e. Red blood cells lack a _______ or other organelles and are essentially sacks filled with _______ .

f. Red blood cells are composed of about _______ percent hemoglobin, which allows them to transport _______ .

g. The iron atom at the center of heme is what gives our blood its _______ color.

h. If hemoglobin were free-floating in the blood, it would thicken the blood, making it too _______ to flow easily.

i. The creation of blood cells is called _______ , which occurs in the _______ .

j. The hormone responsible for regulating red blood cell production is called _______ .

k. Old red blood cells can become rigid and get stuck in _______ , posing health risks.

l. The spleen is sometimes referred to as the _______ for red blood cells due to its role in _______ .

m. One common method of blood doping involves injecting natural or synthetic _______ to boost _______ .

n. A high red blood cell count can lead to _______ , making it harder for the heart to pump effectively.