Respiration and circulation -2

CO2 is mostly carried in the blood in form of

• Carbonic acid

• Carbamino haemoglobin

• Sodium carbonate

• Bicarbonates ions

Choose the correct statement with respect to the human heart

• Activities of heart are initiated by brain

• Myogenic heart stops immediately if taken out of the body

• Heart of humans is neurogenic

• Normal activities of heart are auto regulated

Systolic pressure is the_____pressure excreted by the blood against the vessel walls during ventricular contraction

• Normal

• Maximum

• Minimum

• Less than normal

Hemoglobin most strongly combines with

• Oxygen

• Carbon monoxide

• Ozone

• Carbon dioxide

What does T wave represent

• Ventricular depolarization

• Ventricular relaxation

• Atrial depolarization

• Atrial relaxation

The defect of incompetence of insufficiency of the valves which makes the walls unable to prevent the backwash of the blood is called as

• Stenosis

• Atheroma

• Echo of heart

• Murmuring of heart

The oxygen carrying capacity of human blood is reduced because of the pollution of

• SO2

• O3

• CO2

• Co

Blood group of AB group people can donate blood group to which people

• A

• B

• AB

• O

Which

Germ layer give rise to blood

• Epiderm

• Endoderm

• Ectoderm

• Mesoderm

The circular opening of the left in the left ventricle is guarded by

• Semilunar valve

• Bicuspid valve

• Spiral valve

• Tricuspid valve