Name the following
2. The valve that guards the opening of right atrium
into ventricle.
3. The scientist who discovered circulation of blood.
4. The blood vessel that receives blood from left
ventricle.
5. The instrument which is used to hear heartbeat.
Fig
Kidneys
Kidneys a
organs pre
on either
Answers
Answer:
a) Tricuspid value
The opening between the right atrium and right ventrical is guarded by the formed of three muscular flaps and cusps, tricuspid value.
b) William Harvey
He was a scholar and classics. He was fluent in Greek and latin. He studied classical liteture and was a passionate reader of Greek and Roman.
c) Oxygen-rich
when the heart contracts, oxygen-rich pure blood passes from the left auricle into the left ventricle and is sent to all body parts through aorta. At the same time, the impure blood in the right ventricle is sent to the lungs for purification through the pulmonary artery.
d) Stethoscope
The rhythmic contraction and relaxation of the heart is called heartbeat.The hear of a healthy adult human beats 60-80 times a minute. A device which is used by a doctor to listen to the heartbeat is called stethoscope.