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Biology > The Circulatory System - Hematopoiesis > Flashcards

The Circulatory System - Hematopoiesis Flashcards

Hematopoiesis

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1
Q

Where does erythrocyte production occur?

A

Red bone marrow

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2
Q

Erythropoiesis

A

Red blood cell formation

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3
Q

Hemocytoplasts

A

Mature into all types of bloodcells

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4
Q

________ develop into myeloid cells

A

Hemocytoblasts

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5
Q

Myeloid stem cells transform into..

A

Proerythroblast

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6
Q

_________ develop into erythroblasts

A

Proerythroblast

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7
Q

________ produce huge numbers of ribosomes which are involved in protein production

A

Erythroblasts

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8
Q

hemoglobin formation and iron accumulation occurs in the….

A

Erythroblasts

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9
Q

_______ develops into normoblasts

A

Erythroblasts

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10
Q

______ loses all cellular organelles

A

Normoblasts

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11
Q

Begins to assume typical biconcave shape

A

Normoblasts

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12
Q

Begins to turn pink red in color as more hemoglobin is produced

A

Normoblasts

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13
Q

________ develop into reticulocytes

A

Normoblasts

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14
Q

Reticulocytes become mature erythrocytes within about…

A

Two days

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15
Q

Hypoxia

A

Too few erythrocytes (Oxygen deprivation)

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16
Q

Erythropoietin is produced by…

A

Primarily by kidneys, some in the liver

17
Q

The hormone that directly regulates erythropoiesis

A

Erythropoietin

18
Q

Causes of hypoxia

A
  • reduced number of erythrocytes due to blood loss
  • reduced oxygen availability
  • increased tissue demand for oxygen (as would occur during exercise)
19
Q

Dietary requirements for erythropoiesis

A
  • Iron

- B complex vitamins (B12 and folic acid)

20
Q

Stages of hematopoiesis

A

Hemocytoblasts&raquo_space; myeloid stem cells&raquo_space; proerythroblast&raquo_space; erythroblasts&raquo_space; normoblasts&raquo_space; reticulocytes&raquo_space; erythrocytes

21
Q

Erythroblasts function

A

produce huge numbers of ribosomes which are involved in protein production.
hemoglobin formation iron accumulation also occur in the erythroblast.

Biology (2 decks)

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