25 Questions
What is essential for the survival of every cell in the body?
Oxygen
What is the approximate length of the trachea?
10-13 cm
What is the primary function of the respiratory system?
Oxygenation of the body
What is the function of the C-shaped cartilage pieces in the trachea?
To keep the trachea open
Which of the following is NOT a component of the respiratory system?
Heart
Why are the gaps in the cartilage rings of the trachea posterior?
To permit the expansion of the esophagus during swallowing
What is the primary purpose of oxygen in the body?
Production of ATP
Why is oxygen essential for every cell in the body?
For the production of energy
What is the purpose of the trachea?
To connect the larynx to the bronchi
How many C-shaped cartilage pieces are found in the trachea?
16-20 pieces
What is the purpose of the hairs inside the nostrils?
To block the entry of dust
What is the nasal septum made of?
Ethmoid bone and vomer
What is the location of the nasal cavities?
Within the skull
What is the function of the nasal cavities?
To filter the air
What covers the nasal cavities?
Skin and mucous membrane
What type of cartilage is the thyroid cartilage?
Hyaline cartilage
What is the thyroid cartilage?
The largest cartilage in the larynx
What is the Arabic term for 'thyroid cartilage'?
غضروف الغدة الدرقية
What is the largest cartilage in the human body?
Thyroid cartilage
What is the characteristic of the thyroid cartilage?
It is the largest cartilage in the larynx
Where are the lungs located in the body?
On either side of the heart in the chest cavity
What structure encircles and protects the lungs?
Rib cage
What is located between the lungs in the chest cavity?
Heart
What is the purpose of the rib cage in relation to the lungs?
To encircle and protect the lungs
What is the relationship between the lungs and the heart in the chest cavity?
The lungs are on either side of the heart
Study Notes
The Respiratory System
- Every cell in the body needs oxygen to survive.
Nasal Cavities
- Located within the skull, separated by the nasal septum (a bony plate made of ethmoid bone and vomer).
- Hairs inside the nostrils help block the entry of dust.
Trachea
- Thyroid cartilage is the largest cartilage (hyaline cartilage) in the trachea.
- Length of the trachea is approximately 10-13 cm, extending from the larynx to the primary bronchi.
- Tracheal wall contains 16-20 C-shaped pieces of cartilage, which keep the trachea open.
- Gaps in the incomplete cartilage rings are posterior to permit esophageal expansion when food is swallowed.
Lungs
- Located on either side of the heart in the chest cavity.
- Encircled and protected by the rib cage.
Learn about the respiratory system, its importance, and how every cell in the body needs oxygen to survive.
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