1. Anatomy
    2. 1. Mediastinum
    2. The Heart Development
    3. Pericardium
    4. Features of the Heart
    5. Arterial Supply of Heart
    6. Venous Drainage of the Heart
    7. Conducting System of Heart
    8. Nervous System of Heart
    9. Foetal Circulation and Changes at Birth
    10. Microscopic Structure of Heart
    11. Arteries
    12. Arch of Aorta
    13. Descending Thoracic Artery
    14. Abdominal Aorta
    15. Subclavian Artery
    16. Axiallary Artery
    17. Internal Thoracic Artery
    18. Brachial Artery
    19. Radial Artery
    20. Ulnar Artery
    21. Palmar Arches
    22. External Iliac Artery
    23. Internal Iliac Artery
    24. Femoral Artery
    25. Popliteal Artery
    26. Posterior Tibial Artery
    27. Anterior Tibial Artery
    28. Dorsalis Pedia Artery
    29. Common Carotid Artery
    30. External Carotid Artery
    31. Internal Carotid Artery
    32. Veins
    33. Internal Jugular Vein
    34. External Jugular Vein
    35. Superior Venacava
    36. Inferior Venacava
    37. Brachiocephali vein
    38. Subclavian vein
    39. Axillary vein
    40. Cephalic vein
    41. Basilic vein
    42. Azygous vein
    43. Hemiazyous vein
    44. Accessory Hemiazyoug Vein
    45. Internal Hemiazygous Vein
    46. Internal Iliac Vein
    47. Femoral Vein
    48. Popliteal Vein
    49. Long Saphenous Vein
    50. Small or Short Saphenous Vein
    51. Hepato-portal System
    52. Lymphatic System
    53. Spleen
    54. Thymus
    55. Thoracic duct
  2. Pharmacology
    3. 56. Congestive Heart Failure
    57. Therapy of Arrhythmiasis
    58. Angina pectoris
    59. Therapy of Hypertension
    60. Therapy of Shock
    61. Haemostatic Agents
    62. Therapy of Thromboembolic Disorder
    63. Thrombolytic or Fibrinolytics
    64. Antifibrinolytics
    65. Antiplatelet Drugs
    66. Therapy of Iron Deficiency Anemia
    67. Therapy of Megaloblastic Anaemia
    68. Hypolipidemic Drugs and Plasma Expanders
  3. Physiology
    4. 69. Properties of Myocardial Cells
    70. Heart - A Mechanical Pump
    71. Cardiac Cycle
    72. Electrocardiogram (ECG)
    73. Cardiac Output (CO)
    74. Haemodynamics of Circulation
    75. Heart Sounds
    76. Arterial Pulse
    77. Blood pressure
    78. Regional circulation
    79. Cardiovascular chanes during exercise
    80. Edema Dropsy of fluid retention
    81. Shock
    82. Hematology
  4. Pathology
    5. 83. Anaemia
    84. Hypertension
    85. Hypertensive Heart Disease
    86. Ischemic Heart Disease
    87. Angina pectoris
    88. Myocardial infarction
    89. Rheumatic Fever and Rheumatic Heart Disease (RHD)
    90. Acute Pericarditis
    91. Myocarditis
    92. Infective Endocarditis (IE)
    93. Congenital Heart Disease
    94. Cardiomyopathies
    95. Arteriosclerosis
    96. Atherosclerosis
    97. Inflammatory Disease of Blood Vessels
    98. Aneurysms and Dissection
    99. Congestive Heart Failure
    100. Iron Deficiency Anaemia
    101. Megaloblastic anaemia
    102. Pancytopenia
    103. Leucocytosis and Leucopenia
    104. Aplastic anaemia
    105. Haemolytic anaemia
    106. Hereditary Spherocytosis
    107. Haemoglobinipathies
    108. Thalassemia syndrome
    109. Sickle Cell Disease
    110. Leukaemia
    111. Leukemoid reaction
    112. Lymphadenitits
    113. Hodgkin lymphoma
    114. Non-hodgkin lymphoma
    115. Myeloproliferative disorders
    116. Myelofibrosis
    117. Multiple myeloma
    118. Bleeding disorders
    119. Coagulation disorders
    120. any
    121. Blood grouping
  5. Microbiology
    6. 122. Introduction of Blood borne infections
    123. Infective Endocarditis
    124. Brucella
    125. Rickettsiae
    126. Leishmania donovani
    127. Plasmodium
    128. Wuchereria bancrofti
  6. Biochemistry
    7. 129. Metabolism in Blood Cells
    130. Iron metabolism
    131. Haemoglobin
    132. Lipoprotein metabolism
    133. Biochemical aspect of MI
Anatomy
11. Arteries
Image 1
Fig. Blood vessels structure
BLOOD VESSELS
Difference between Arteries and Veins
Properties
Artery
Vein
Lumen
Smaller
Larger
Wall
  1. Thicker
  2. More elastic
  1. Thinner
  2. Less elastic and can easily be compressed
Distinction among layers
Clear distinction between tunica intima, media and adventitia can be made
Clear distinction can't be made out in small veins
Tunica intima
Single layered
Single layered
Tunica media
  1. Contains less collagen
  2. Contains more muscles and elastic tissue
  1. Contains large amount of collagen
  2. Contains less muscles and elastic tissue
Smooth mucsle cell arrangement
Well-organized concentric layers
Hapazard fashion
Adventitia
Thinner than media
Thicker than media
Volume of blood accomodated
⅓
⅔
Types of arteries
Large arteries of Elastic type
Medium and small arteries of Muscular type
Smallest arteries of muscular type/ Arterioles
Difference between 3 types of arteries
Properties
Elastic artery
Muscular artery
Arterioles
Large arteries
Medium and small arteries
Smallest arteries
Examples
  1. Aorta
  2. Major branches of Aorta
    1. Common carotid artery
    2. Subclavian artery
    3. Innominate artery
    4. Iliac artery
  3. Pulmonary artery
  1. Small branches of Aorta
    1. Coronary artery
    2. Renal arteries
Small arteries and arterioles within tissue and organs
Type
Eastic type
Muscular type
Muscular type
Tunica media
Contains less collagen
Contains large amount of collagen
Wall
More elastic
Less elastic and can easily be compressed
Adventitia
Thinner than media
Thicker than media
Function
Regulate regional blood flow and blood pressure
Endothelial cells
Functions of Endothelial cells
Maintains non-thrombogenic surface
It maintains blood in a fluid state.
Influence vascular resistance
Endothelial cells modulate medial smooth muscle cell tone and thus regulates the vascular resistance.
Metabolize hormones
It metabolize angiotensin hormone.
Regulate inflammation
Affect growth of other cell types
It particularly affect the growth of smooth muscle cells.
Egression of fluids, electrolytes and protein
  • •
    At normal condition, interendothelial junctions are largely impermeable. But at inflammation or by the activity of vasoactive agents (e.g., histamine); it allow rapid egress of fluids, electrolytes and proteins.
  • •
    During inflammation, even leukocytes can slip between adjacent endothelial cells.
Production of substances
    Activated endothelial cells produces the following molecules
  1. Adhesion molecules
  2. Cytokines and chemokines
  3. Growth factors
  4. Vasoactive molecules
    • •
      Vasoconstrictor
      1. Endothelin
    • •
      Vasodilator
      1. Nitric oxide (NO)
  5. Procoagulant and Anticoagulant
  6. Major histocompatibility complex molecules
Smooth muscle cells
Function of Vascular smooth muscle cells
Self proliferation
They have capacity to proliferate when appropriately stimulated
Synthesis
    It can synthesize
  1. Collagen
  2. Elastin
  3. Proteoglycans
  4. Growth factors
  5. Cytokines
Vasoconstriction and Dilation

Question Answers

Q.

Histology of wall of conducting vessel (Aorta).

(3= 3)

[2072]

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Q.

Microscopic features of elastic artery.

[2076]

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