Fill in the blanks
When the __________________, the deoxygenated blood is pumped into the lungs through the pulmonary artery.
right ventricle contracts
what is called the contraction phase of the heart muscles?
a) systole
b) diastole
c) atrium
d) ventricle
systole
Heart
The heart is an organ which pumps to all the parts of our body through the blood vessels
What are chambers? Name its parts.
. The heart has four compartments called ‘chambers’. The upper two chambers of the heart are called atria (singular: atrium) or auricles and two lower chambers of the heart are called ventricles.
When we do any physical activity like running and cycling, why does our heartbeat becomes faster?
When we do any physical activity like running and cycling, our heartbeat becomes faster. This is because at such times, the body cells need more oxygen to release more oxygen through respiration. To supply more oxygen, the blood flows faster.
_______ is an organ which pumps to all the parts of our body through the blood vessels.
Heart
what is present between left atrium and left ventricle which allows blood to flow from left atrium to left ventricle.
a) tricuspid valve
b) bicuspid valve
c) auricles
d)atria
bicuspid valve
Pericardium
The heart is enclosed in a double-layered membranous sac called pericardium
Where is the heart located?
The heart is located between the lungs in the chest cavity with its lower tip slightly tilted towards the left.
What is the size of our heart?
The size of a heart In an adult is roughly equal to fist (mutthi), about 12 cm in length and 9 cm in breadth.
The left side of the heart has oxygen-rich blood (also called_________).
oxygenated blood
A stethoscope consists of how many types?
a)2
b)4
c)3
d)5
3
Chambers
The heart has four compartments called ‘chambers’.
Why do doctors use stethoscope to listen to our heart?
Doctors can get clues about our condition of our heart by listening to the heartbeat through a stethoscope
In the lungs what does deoxygenated blood give out and what does it absorb?
In the lungs, deoxygenated blood gives out carbon dioxide and absorbs fresh oxygen from the air being breathed in
A _____________ is present between right atrium and right ventricle which allows blood to flow from right atrium to right ventricle.
tricuspid valve
a doctor uses __________ to listen to our heart?
a) otoscope
b) stethoscope
c) none of these
d) all of these
stethoscope
Tricuspid valve
A tricuspid valve is present between right atrium and right ventricle which allows blood to flow from right atrium to right ventricle
What is heart rate?
The average heartbeat of an adult person while resting is 72 to 80 times per minute. This is called the heart rate.
What happens when blood passes through the capillaries of the lungs?
When blood passes through the capillaries of the lungs, then oxygen from air enters the blood. The blood is now oxygen-rich and is called oxygenated blood
One complete rhythmic contraction of heart followed by its relaxation is called a ____________.
Heartbeat
Which of the following is not a part of stethoscope?
a) Ear piece
b)Light
c)Rubber tube
d)chest piece
Light
Bicuspid valve
A bicuspid valve is present between the left atrium and left ventricle which allows blood to flow from the left atrium to left ventricle
What happens when we do any physical activity?
When we do any physical activity like running and cycling, our heartbeat becomes faster.
From where to where does The pulmonary vein brings the oxygenated blood?
The pulmonary vein brings the oxygenated blood from the lungs to the left atrium of the heart.