The circulatory system ICSE_X

Squeezing out of white blood cells from the capillaries into the surrounding tissues.

     

• Diapedesis    

• Thrombosis

• Haemopoiesis

• Phagocytosis

The chemical compound released by the platelets at the site of injury

• Thrombokinase

• Thromboplastin

• Thrombinogen

• Both A and B

The blood cells involved in inflammatory reactions.

• Neutrophils  

• Eosinophils

• Basophils  

• Lymphocytes

Blood vessels carrying blood to the left atrium

• Superior vena cava

• Pulmonary artery

• Precaval vein

• Pulmonary vein

Any two organelles absent in mature RBCs

• Cytoplasm and Nucleus

• Endoplasmic reticulum and Cytoplasm

• Golgi apparatus and Cytoplasm

• Nucleus and Mitochondria

Graveyard of RBCs

• Pancreas

• kidney

• Liver

• Spleen

The second heart sound (dub) is associated with the closure of                           .

• Pocket shaped valves

• Semilunar valves

• Atrio-ventricular valves

• Both B and C

In the heart, the Purkinje fibres are located in                     .

• the outer wall of the left ventricle

• the outer wall of the right ventricle

• the wall of the right atrium

• the lateral wall of ventricles

                        are lymphoid tissue aggregates situated at each side of the back of the throat.

• Tonsils

• Spleen

• Thymus

• Adrenal

Walls of capillaries consist of a single layer of __________ cells

• cuboidal epithelial

• squamous epithelial

• columnar epithelial

• stratified squamous epithelial