Bio 2260 Exam 2 UPDATED ACTUAL Questions and CORRECT
Answers
Functions of the Circulatory System Transportation
Regulation
Protection
Components of the circulatory system Cardiovascular system
Lymphatic system
Cardiovascular system consist of Heart-Four Chambers
Blood Vessles (Arteries, arterioles, capilliars, venules and veins)
Lympahatic system consits of Lymphatic vessles
lymphoid tissues
Lymphatic organs
What are the lymphatic organs Spleen, Thymus, Tonsils and lymph nodes
Luekocyts are WBC
Describe a luekocyt 1. Have nuclei and mitochondria
2. They move through capillary walls to connective tissue
3. Normal Range is 5000,9000
What are the 2 types of luekocytes 1. Granular, neutrophils ,eosinophils, and basophils
2.Agranular, monocytes and lympocytes
Platelets are also called Thrombocytes
Describe a platelet Smallest formed element
lack nuclei
short lived 5-9 days
clots blood with fibrinogen
Releases serotonin to stimulate vasoconstriction
Normal range 130000,400000
What is the process of blood formation called? Hematopoiesis
Hematopietic Stem cells do what (embryonic cells ) give rise to all blood cells
Where does blood cell formation occur Myeloid tissue in the red bone marrorw and lymphoid tissue
Large group of small proteins peptides or glycoproteins Cytokines
that are secreted by specific cells of the immune system
, Cytokeins do what? Singals molecules that mediate and regulate immunity, inflammation and
meatopoiesis
What is the formation of White blood cells? Leukopoiesis
What stimulates the productions of WBC Cytokeins
What stimulations the growth of megakaryocytes and Thrombopoietin
maturation into platelets in meatopoiesis?
Hemostasis is the cessation of bleeding when a blood vessel is damaged
How is the blood clot formed Damage exposes the collagen fibers to blood which stimulates vasoconstriction,
formations of platelet plug and formation of fibrinin protein
Platelets bind to Collagen
What holds the platelets tot he collagen? Von Willebrand
Platelets stimulate the clot formation the following ways ADP stimulates (Stickey Platelets)
Serotonin stimulates (Vasoconstriction)
Thromboxane A stimulates both stickey platelets and vasoconstriction
In clot formation fibrogen gets converted to fibrin
How is fibrogen converted to fibrin Calcium and phospholipids from platelets convert prothrombin to thrombin with
convers fibrinogen to fibrin
what is needed by the liver to make several clotting Vitamin K
factors
what dissolves clots Plasmin
What drugs prevent clotting Calcium chelators
Heparin
coumadin
The hearts energy demand uses 5kg of atp/day
mostly fatty acids and glucose
Auto Rhythmic heart means it beats without stimuli from the nervous system
The cardiac conduction system has the Sinoatrial Node (SA) which is the hearts pacemaker
The heart consist of 4 chambers
Answers
Functions of the Circulatory System Transportation
Regulation
Protection
Components of the circulatory system Cardiovascular system
Lymphatic system
Cardiovascular system consist of Heart-Four Chambers
Blood Vessles (Arteries, arterioles, capilliars, venules and veins)
Lympahatic system consits of Lymphatic vessles
lymphoid tissues
Lymphatic organs
What are the lymphatic organs Spleen, Thymus, Tonsils and lymph nodes
Luekocyts are WBC
Describe a luekocyt 1. Have nuclei and mitochondria
2. They move through capillary walls to connective tissue
3. Normal Range is 5000,9000
What are the 2 types of luekocytes 1. Granular, neutrophils ,eosinophils, and basophils
2.Agranular, monocytes and lympocytes
Platelets are also called Thrombocytes
Describe a platelet Smallest formed element
lack nuclei
short lived 5-9 days
clots blood with fibrinogen
Releases serotonin to stimulate vasoconstriction
Normal range 130000,400000
What is the process of blood formation called? Hematopoiesis
Hematopietic Stem cells do what (embryonic cells ) give rise to all blood cells
Where does blood cell formation occur Myeloid tissue in the red bone marrorw and lymphoid tissue
Large group of small proteins peptides or glycoproteins Cytokines
that are secreted by specific cells of the immune system
, Cytokeins do what? Singals molecules that mediate and regulate immunity, inflammation and
meatopoiesis
What is the formation of White blood cells? Leukopoiesis
What stimulates the productions of WBC Cytokeins
What stimulations the growth of megakaryocytes and Thrombopoietin
maturation into platelets in meatopoiesis?
Hemostasis is the cessation of bleeding when a blood vessel is damaged
How is the blood clot formed Damage exposes the collagen fibers to blood which stimulates vasoconstriction,
formations of platelet plug and formation of fibrinin protein
Platelets bind to Collagen
What holds the platelets tot he collagen? Von Willebrand
Platelets stimulate the clot formation the following ways ADP stimulates (Stickey Platelets)
Serotonin stimulates (Vasoconstriction)
Thromboxane A stimulates both stickey platelets and vasoconstriction
In clot formation fibrogen gets converted to fibrin
How is fibrogen converted to fibrin Calcium and phospholipids from platelets convert prothrombin to thrombin with
convers fibrinogen to fibrin
what is needed by the liver to make several clotting Vitamin K
factors
what dissolves clots Plasmin
What drugs prevent clotting Calcium chelators
Heparin
coumadin
The hearts energy demand uses 5kg of atp/day
mostly fatty acids and glucose
Auto Rhythmic heart means it beats without stimuli from the nervous system
The cardiac conduction system has the Sinoatrial Node (SA) which is the hearts pacemaker
The heart consist of 4 chambers
