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The Respiratory Syst
The Respiratory System
Question | Answer |
---|---|
Oxygen and carbon dioxide are transported between the cells of the body and the respiratory system by the _____. | circulatory system |
The smallest branches of the respiratory system tubes terminate in clusters of microscopic air sacs called _____. | alveoli |
Blood enters the lung from the heart through a major artery known as the _____. | pulmonary artery |
The mouth and nasal cavities meet in a region called the _____. | pharynx |
The nasal cavities open to the external environment at the nostrils, also called the _____. | external nares |
many bones of the skull contain openings from the nasal cavities referred to as _____. | sinuses |
At the roof of the nasal cavities the sense of smell is associated with an area called the _____. | olfactory region |
Three functions o the nose includes moistening the air, filtering the air, and _____. | warming the air |
Another name for the pharynx is the _____. | throat |
The lateral walls of the nasopharynx contain openings of tubes from the middle ear known as _____. | auditory tubes |
The largest cartilage of the larynx, also known as the Adam’s apple, is the _____. | thyroid cartilage |
The cartilage of the larynx that resembles a signet ring and connects the trachea and larynx is the _____. | cricoid cartilage |
The opening to the larynx is referred to as the _____. | glottis |
Vibrations of the vocal cords are due to air exhaled from the _____. | lungs |
Because men have longer vocal chards, their vices have lower _____. | pitch |
The trachea is supported by a series of C-shaped rings of _____. | cartilage |
The two primary tubes that branch from the trachea are the _____. | bronchi |
There is no cartilage in the tubes when the bronchi become _____. | bronchioles |
Bronchiole walls are composed mostly of muscle referred to as _____. | smooth muscle |
The common name for inflammation of the bronchial tree is _____. | bronchitis |
The lungs occupy most of the space of the _____. | thoracic cavity |
The left lung is subdivided into two lobes, while the right lung is subdivided into _____. | three lobes |
The two-layer membrane surrounding each lung is the _____. | pleura |
The underlying principle of breathing is that air flows from the region of high pressure to a region of _____. | low pressure |
Pressure changes occurring in the lungs can be traced to the activity of skeletal muscles know as _____. | respiratory muscles |
During inspiration, contractions cause the downward movement of a dome-shaped muscle known as the _____. | diaphragm |
The relaxation of respiratory muscles compresses the thorax and increases the air pressure in the _____. | lungs |
While inspiration is an active process, the process of expiration is a(n) _____. | passive process |
The volume of air that can be forced out of the lungs after a forced inspiration is the _____. | vital capacity |
Breathing is controlled by an area of the brain called the respiratory control center, which includes part of the medulla oblongata and the _____. | pons |