Working And Structure Of Heart
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To acquaint the students with transportation in human beings. To impart the knowledge of blood components, circulatory system, structure of human heart and blood vessels.
Transportation of digested food, oxygen, hormones and waste material in human beings occurs through blood and Lymph. This purpose is solved by Circulatory System having following parts: 1:-- Circulatory medium Blood 2:-- Blood Vessels Arteries,Veins,Capillaries 3:-- Pumping organ Heart
It is thick, red and salty connective tissue. Its pH ranges from 7.3 to 7.5. It is composed of two components- Plasma and Blood corpuscles. Plasma- It is light yellow coloured fluid including water, chlorides and proteins. Blood Corpuscles- Human blood composes of three types of blood corpuscles: 4. R.B.C. 5. W.B.C. 6. Platelets
R.B.C. These are red in colour due to haemoglobin. Their life span is of 120 days.
W.B.C. These act as soldiers by constructing anti bodies Their life span is of 3-4 days
Platelets These corpuscles help in coagulation of blood. Their life span is of 7days
Exchange of essential nutrients, gases waste products, hormones, enzymes and ions. To regulate body temperature. W.B.C. act as soldiers by making antibodies against infections. Platelets help in blood coagulation. Globulin and Albumin help in osmoregulation.
2. 3. 4.
Blood vessels are of three typesArteries Veins Capillaries
Arteries:-Arteries are red coloured,deep seated, thick walled vessels carrying oxygenated blood from heart to all parts of body without valves.
Veins:-Veins are blue coloured,superficial ,thin walled vessels carrying deoxygenated blood from all parts of body to heart. Veins have valves.
Capillaries:-Capillaries are thin walled vessels with narrow lumen. These perform the function of exchange of gases, digested food, waste products and hormones.
Human heart is highly muscular, reddish brown, conical, pumping organ situated in thoracic cavity. In adults heart is 12c.m. in length and 9 c.m. in breadth. It is protected by double layered pericardium filled with fluid called pericardial fluid. It consists of four chambers upper auricles and lower ventricles. Left and right sides of heart are completely divided by intra-auriculo-ventricular septum. Right auricle and ventricle are interconnected by tricuspid valve and left are interconnected by bicuspid valve to prevent the backflow of blood. Since the ventricles have to pump the blood to all body parts , these are thick walled.
A Catheter is inserted in diseased artery. Repeatedly inflation and deflation of balloon at the end of catheter flattens the plaque to restore the blood flow through blocked artery
Angiogram is an X-ray examination of heart after injection of dye Areas blocked by arthero-sclerotic plaque appear as dark spots.
Arterial Plaque is deposited due to Arthrosclerosis. Plaque is deposited along the inner lining of artery. It consists of Cholesterol, Platelets, Muscles cells and the other tissues.
Angiogram records the activity of heart. Irregularities in angiogram diagnose coronary heart diseases, diseases of muscles, blood supply and neural control of heart.
What is transportation? How many chambers are there in human heart? Write different types of blood vessels? Why are ventricles thick walled ? Draw labelled diagram of human heart? What is E.C.G.? What is angiogram? ------- help in blood coagulation. W.B.C. act as ----------. Haemoglobin is ------- carriers.
ENCARTA ENCYCLOPEDIA DELUXE 2005 TEXT BOOK FOR SEC. CLASSES (P.S.E.B.) http://www.web anatomy
To acquaint the students with transportation in human beings. To impart the knowledge of blood components, circulatory system, structure of human heart and blood vessels.
Transportation of digested food, oxygen, hormones and waste material in human beings occurs through blood and Lymph. This purpose is solved by Circulatory System having following parts: 1:-- Circulatory medium Blood 2:-- Blood Vessels Arteries,Veins,Capillaries 3:-- Pumping organ Heart
It is thick, red and salty connective tissue. Its pH ranges from 7.3 to 7.5. It is composed of two components- Plasma and Blood corpuscles. Plasma- It is light yellow coloured fluid including water, chlorides and proteins. Blood Corpuscles- Human blood composes of three types of blood corpuscles: 4. R.B.C. 5. W.B.C. 6. Platelets
R.B.C. These are red in colour due to haemoglobin. Their life span is of 120 days.
W.B.C. These act as soldiers by constructing anti bodies Their life span is of 3-4 days
Platelets These corpuscles help in coagulation of blood. Their life span is of 7days
Exchange of essential nutrients, gases waste products, hormones, enzymes and ions. To regulate body temperature. W.B.C. act as soldiers by making antibodies against infections. Platelets help in blood coagulation. Globulin and Albumin help in osmoregulation.
2. 3. 4.
Blood vessels are of three typesArteries Veins Capillaries
Arteries:-Arteries are red coloured,deep seated, thick walled vessels carrying oxygenated blood from heart to all parts of body without valves.
Veins:-Veins are blue coloured,superficial ,thin walled vessels carrying deoxygenated blood from all parts of body to heart. Veins have valves.
Capillaries:-Capillaries are thin walled vessels with narrow lumen. These perform the function of exchange of gases, digested food, waste products and hormones.
Human heart is highly muscular, reddish brown, conical, pumping organ situated in thoracic cavity. In adults heart is 12c.m. in length and 9 c.m. in breadth. It is protected by double layered pericardium filled with fluid called pericardial fluid. It consists of four chambers upper auricles and lower ventricles. Left and right sides of heart are completely divided by intra-auriculo-ventricular septum. Right auricle and ventricle are interconnected by tricuspid valve and left are interconnected by bicuspid valve to prevent the backflow of blood. Since the ventricles have to pump the blood to all body parts , these are thick walled.
A Catheter is inserted in diseased artery. Repeatedly inflation and deflation of balloon at the end of catheter flattens the plaque to restore the blood flow through blocked artery
Angiogram is an X-ray examination of heart after injection of dye Areas blocked by arthero-sclerotic plaque appear as dark spots.
Arterial Plaque is deposited due to Arthrosclerosis. Plaque is deposited along the inner lining of artery. It consists of Cholesterol, Platelets, Muscles cells and the other tissues.
Angiogram records the activity of heart. Irregularities in angiogram diagnose coronary heart diseases, diseases of muscles, blood supply and neural control of heart.
What is transportation? How many chambers are there in human heart? Write different types of blood vessels? Why are ventricles thick walled ? Draw labelled diagram of human heart? What is E.C.G.? What is angiogram? ------- help in blood coagulation. W.B.C. act as ----------. Haemoglobin is ------- carriers.
ENCARTA ENCYCLOPEDIA DELUXE 2005 TEXT BOOK FOR SEC. CLASSES (P.S.E.B.) http://www.web anatomy
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