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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 |
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