Chapter 13 PPT The Human Body Flashcards
What are the 3 functions of the blood?
Transportation, Regulation, Protection
What does the blood transport?
Gases, nutrients, wastes, hormones
What does the blood regulate?
pH, overall fluid volume, fluid composition, heat
What does the blood protect you from?
disease, blood loss
What is the pH range of blood?
7.35 - 7.45
Blood is classified as _______
liquid connective tissue
What is blood made up of?
Plasma (liquid portion)
Formed elements (cellular portion made in red bone marrow)
Whole blood is _____% ________
and
_____% __________
55% plasma
45% formed elements
The composition of plasma in blood is _____% ________
and _____% ________
and _____% ________
91% water
8% proteins
1% other
The composition of the formed elements in blood is _____% ________
and _____% ________
99.1% erythrocytes
0.9% leukocytes and platelets
What are the components of plasma?
Water
Protein
-Albumin
-Clotting factors
-Antibodies
-Complement
What is the most abundant part in blood?
Erythrocytes - red blood cells
Why are erythrocytes described as biconcave
They are a donut shape with indentations on both sides of the red blood cell
What does the hemoglobin in red blood cells do?
-binds to oxygen for transport
-carries hydrogen ions for buffering
-carries carbon dioxide for elimination
What are the two main components of blood?
Next to water, what is the most abundant type of substance in plasma?
Where do blood cells form, and from which stem cell type are they produced?
What is the main function of hemoglobin?
What is the signal in the feedback loop controlling in red cell production?
and
What is the regulated variable?
What is the medical name for red blood cells?
Erythrocytes
What is the medical name for white blood cells?
Leukocytes
Describe what a white blood cell looks like
colorless, round, with prominent nuclei
What are the components of white blood cells?
Granulocytes (neutrophils, eosinophils, basophils)
Agranulocytes (lymphocytes, monocytes)
What do white blood cells do?
Clear body of foreign material, cellular debris, and pathogens
Cell Type: Neutrophil
Percentage: __________
Function: __________
54-62%
phagocytosis
Cell Type: Eosinophil
Percentage: __________
Function: __________
1-3%
Allergic reactions
Defense against parasites
Cell Type: Basophil
Percentage: __________
Function: __________
Less than 1%
Allergic reactions
Inflammatory reactions
Cell Type: Lymphocyte
Percentage: __________
Function: __________
25-38%
Immunity (T and B cells)
Cell Type: Monocyte
Percentage: __________
Function: __________
3-7%
Phagocytosis
Mature in macrophages
What type of epithelium makes up the capillary wall?
What is the medical name for platelets?
Thrombocytes
What are the three types of granular leukocytes?
WHat are the two types or agranular leukocytes?
What are platelets?
-smallest formed element
-not cells (no nuclei or DNA)
-fragments release from megakaryocytes
-essential for blood coagulation (clotting)
What is the most important function of leukocytes?
What is the function of blood platelets?
What iron-containing protein transports oxygen?
Hemoglobin
What does hemostasis do?
Prevents blood loss when blood vessel ruptures
Events of hemostatis include _________
-Contraction of smooth muscle in the damaged blood vessel wall
-Formation of a platelet plug
-Formation of a blood clot
-Formation of prothrombinase
-Prothrombinase stimulates the conversion of prothrombin into thrombin
-THrombin stimulates the conversion of fibrinogen into fibrin
What part of the word prothrombinase indicates that it is an enzyme?
What part of the word prothrombin indicates that it is a precursor?
What is the general term for the process that stops blood loss?
What substance in the blood forms a clot?
How does serum differ from blood plasma?