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The Respiratory Syst

The Respiratory System

QuestionAnswer
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
Created by: KMCBSLCC
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