A&P 2 Exam 1 Study Guide | Latest Test
Questions & Answers | Verified 2026 | 2027
(Rated A+)
Save
Terms in this set (59)
List the general functions of blood Transport Substances - such as gases, nutrients,
metabolic waste, and hormones between cells in
the body and the external environment in order
to help maintain homeostasis
Regulation of body temperature, body pH, and
fluid volume
Protection from excessive blood loss
(hemostasis) and from infection
List the 4 components of blood and 45% Formed Elements
their percentages
55% Plasma
<1% Platelets and White Blood Cells
Describe the composition of blood Clear, yellowish liquid portion of blood that
plasma suspends cells and platelets.
Mainly composed of water (90%) with a mixture
of organic & inorganic substances dissolved
within it
, What are the formed elements of Erythrocytes - Flexible, biconcave cells that
the blood and what are their contain hemoglobin (hgb); contribute to blood
functions? viscosity; Respiratory gas transport; Hemoglobin
binds Oxygen and Carbon Dioxide reversibly;
composed of globin + iron-containing heme
Leukocytes - To protect against disease
Thrombocytes - Platelets - Help heal damaged
blood vessels through its involvement in blood
clot formation
Describe erythropoiesis Formation of Red Blood Cells RBCs
Stem cell becomes Hemocytoblast becomes
Proerythroblast (Committed cell) which becomes
an
Erythroblast which matures and ejects its nucleus
becomes a reticulocyte and matures into
erythrocyte
Describe the life cycle of an 1. Low oxygen levels in blood stimulate kidneys
erythrocyte to produce erythropoietin
2. Erythropoietin levels rise in blood
3. Erythropoietin and necessary raw materials in
blood promote erythropoiesis in red bone
marrow
4. New erythrocytes enter bloodstream; function
about 120 days
5. Aged and damaged red blood cells are
engulfed by macrophages of liver, spleen, and
bone marrow, the hemoglobin is broken down
Questions & Answers | Verified 2026 | 2027
(Rated A+)
Save
Terms in this set (59)
List the general functions of blood Transport Substances - such as gases, nutrients,
metabolic waste, and hormones between cells in
the body and the external environment in order
to help maintain homeostasis
Regulation of body temperature, body pH, and
fluid volume
Protection from excessive blood loss
(hemostasis) and from infection
List the 4 components of blood and 45% Formed Elements
their percentages
55% Plasma
<1% Platelets and White Blood Cells
Describe the composition of blood Clear, yellowish liquid portion of blood that
plasma suspends cells and platelets.
Mainly composed of water (90%) with a mixture
of organic & inorganic substances dissolved
within it
, What are the formed elements of Erythrocytes - Flexible, biconcave cells that
the blood and what are their contain hemoglobin (hgb); contribute to blood
functions? viscosity; Respiratory gas transport; Hemoglobin
binds Oxygen and Carbon Dioxide reversibly;
composed of globin + iron-containing heme
Leukocytes - To protect against disease
Thrombocytes - Platelets - Help heal damaged
blood vessels through its involvement in blood
clot formation
Describe erythropoiesis Formation of Red Blood Cells RBCs
Stem cell becomes Hemocytoblast becomes
Proerythroblast (Committed cell) which becomes
an
Erythroblast which matures and ejects its nucleus
becomes a reticulocyte and matures into
erythrocyte
Describe the life cycle of an 1. Low oxygen levels in blood stimulate kidneys
erythrocyte to produce erythropoietin
2. Erythropoietin levels rise in blood
3. Erythropoietin and necessary raw materials in
blood promote erythropoiesis in red bone
marrow
4. New erythrocytes enter bloodstream; function
about 120 days
5. Aged and damaged red blood cells are
engulfed by macrophages of liver, spleen, and
bone marrow, the hemoglobin is broken down
