MICROANATOMY

ENDOCRINE ORGANS AND RESPIRATORY SYSTEM

RESPIRATORY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many lungs do humans have?
A
1
B
4
C
3
D
2
Explanation: 

Detailed explanation-1: -You have two lungs, the left lung and the right lung. The left lung is slightly smaller and has a notch to give room for the heart. Each lung is divided into lobes-the left lung has two and the right lung has three-which are similar to balloons filled with sponge-like tissue.

Detailed explanation-2: -There is also a structural advantage to having the lungs be separate, the main one being that the bronchial tubes bifurcate naturally, and that there is a place for the heart and other “indivisible” organs in the middle. Separation also decreases the chance of problems or disease in one spreading to the other.

Detailed explanation-3: -The right and left lung anatomy are similar but asymmetrical. The right lung consists of three lobes: the right upper lobe (RUL), the right middle lobe (RML), and the right lower lobe (RLL). The left lung consists of two lobes: the left upper lobe (LUL) and the left lower lobe (LLL).

Detailed explanation-4: -Humans have two lungs, one on the left and one on the right. They are situated within the thoracic cavity of the chest. The right lung is bigger and heavier than the left, which shares space in the chest with the heart. The lungs together weigh approximately 1.3 kilograms (2.9 pounds).

Detailed explanation-5: -Almost every living organism in the animal kingdom share several physical characteristics. Most have one heart, two lungs, two eyes, two ears, two noses, one mouth, etc.

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