Question

$\large{\underline{\underline{\red{\tt Question :}}}}$
Explain internal structure of the human heart.
☞︎︎︎ Functions of each and every internal parts.
☞︎︎︎ Draw a labelled diagram of internal structure of heart.​

Answer 1

The heart is divided into a right and left side by the septum.

Septum - A partition separating two chambers, such as that between the nostrils or the chambers of the heart.

Refer to attachment you can see the picture .

The heart has four chambers, two relatively small the upper chamber through which blood enters the ventricles of the heart.

Atria - There are two atria in the human heart – the left atrium receives blood from the pulmonary (lung) circulation, and the right atrium receives blood from the venae cavae (venous circulation). upper chambers called atria and two larger lower chambers called ventricles.

Image refer to attachment of Atria

Ventricles - A ventricle is one of two large chambers toward the bottom of the heart that collect and expel blood received from an atrium towards the peripheral beds within the body and lungs.

Image refer to attachment of Ventricles

Functions of each and every internal parts.

• The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle.
• The right ventricle pumps the oxygen-poor blood to the lungs.
• The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle.
• The left ventricle pumps the oxygen-rich blood to the body.

Draw a labelled diagram of internal structure of heart.

Answer 2

$\large\underline{\underline{ \sf \maltese{\:Question:-}}}$

⇨Explain internal structure of the human heart.

⇨Functions of each and every internal parts.

⇨Draw a labelled diagram of internal structure of heart.

___________________________________

___________________________________

$\large\underline{\underline{ \sf \maltese{\:Solution:-}}}$

$\huge \rm \pink {heart : }$

• it's a muscular organ located in the chest cavity and it's slightly tillted towards the left and it's about the size of a clenched fist.!

$\sf {\underline{ \underline{ \orange{ \mathfrak{ \bigstar \: internal \: structure : }}}}}$

• the heart is first divided into 2 halves and each half is divided into 2 chambers so, basically it's four chambered

• the upper two chambers are called the atria or auricles and the lower ones are called the ventricles on each side

• there are valves between the auricles and the ventricles each side. the right auricle opens into the right ventricle and the left auricle to the left ventricle.

• there are no valves in between the auricles and ventricles.

★And this results the blood in the right side of heart remaining separated from the left side.★

➷these valves allow blood to only flow in one direction resulting that there in no mixing of oxygenated and deoxygenated blood .

• the blood vessels are the channels in which the blood flows in sde the heart
• the two types of blood vessels are arteries and veins.

__________________________________________

__________________________________________

$\sf {\underline{ \underline{ \pink{ \mathfrak{ \bigstar \: functions : }}}}}$

⇾ arteries:

• Arteries carry blood away from the heart. 
• these carry pure oxygenated blood
• valves are absent here.

↬valves:

• these bring blood to the heart from other parts of the body. and they lie closer to the surface of the sink
• valves are present here to stop the backward flow of blood.
• veins carry deoxygenated blood.

⇝Auricles:

• Its primary roles are to act as a holding chamber for blood returning from the lungs and to act as a pump to transport blood to other areas of the heart.

➻ ventricles:

• These structures are responsible for the production, transport and removal of cerebrospinal fluid, which bathes the central nervous system.

hope this helps.!

‏‏‎