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Chapter 19 Respiratory System
Terms in this set (45)
Body cells use oxygen to produce carbon dioxide and energy in a multistep process called
We breath in order to take in OXYGEN and release CARBON DIOXIDE.
When you have a stuffed up nose, you often wake up with a very dry throat. Why?
AIR ISN'T BEING MOISTENED BY THE NASAL MUCOSA
The nostrils of the nose are called:
Cellular respiration uses OXYGEN to produce energy and CARBON DIOXIDE.
When hemoglobin is saturated with oxygen, its called
Air passes from the trachea into the MAIN BRONCHI before moving into the secondary bronchi.
Which are paranasal sinuses?
List the correct order of more proximal airways to the more distal airways.
1. MAIN BRONCHI
2. LOBAR BRONCHI
3. SEGMENTAL BRONCHI
4. INTRALOBULAR BRONCHIOLES
5. TERMINAL BRONCHIOLES
6. RESPIRATORY BRONCHIOLES
The inferior portion of the pharynx which extends from the epiglottis to the esophagus is the:
The portion of the pharynx that extends from the soft palate to the upper border of the epiglottis is the
The structure that functions to keep food and water out of the larynx and trachea is the
Oxygen travels from the ALVEOLI to the BLOOD during external respiration.
In the lungs, gas exchange between the air and the blood occurs at the ALVEOLI of the lungs.
What is found between the visceral and parietal pleural membranes?
Exercise will normally induce:
Air moves out of the lungs when the size of the thoracic cavity
The process of the quiet expiration is:
PASSIVE (NO MUSCLE CONTRACTION REQUIRED)
Which are muscles of inspiration?
EXTERNAL INTERCOSTAL MUSCLES
The right lung has 3 lobes and 2 fissure(s).
Rank the saturation level of hemoglobin from highest to lowest.
1. IN THE PULMONARY VENULES
2. IN THE ARTERIAL BLOOD
3. IN VENOUS BLOOD
Most carbon dioxide transported in the blood is:
IN THE FORM OF BICARBONATE IONS
The organ associated with the pleural cavity is the
TIDAL volume is the volume of air inhaled or exhaled during quiet breathing.
Gas exchange between the inspired air and the blood occurs in the ALVEOLI of the lungs.
Functions of pleural fluid?
REDUCES FRICTION DURING BREATHING
CAUSE THE VISCERAL AND PARIETAL PLEURAE TO ADHERE
The visceral PLEURA is a serious membrane closely attached to the lung surface. The parietal layer lines the pleural cavity.
A fully loaded hemoglobin molecule carries 4 oxygen molecules.
Which of these are stimuli that the carotid and aortic bodies are able to respond to?
CARBON DIOXIDE LEVELS
The "voice-box", a cartilaginous region of the airway that contains the vocal cords, is also called
The most superior portion of the pharynx, posterior to the nasal cavity, extending to the soft palate, is the
Which two are the most abundant cell types in the nasal mucosa?
PSEUDOSTRATIFIED CILIATED COLUMNAR EPITHELIUM
The areas in order from highest to lowest partial pressure of oxygen.
Air passes from the nasal cavity to the nasopharynx, then to the oropharynx, then into the LARYNGOPHARYNX, and into the larynx.
What is responsible for the adhesion of the parietal and visceral pleurae?
ATTRACTION BETWEEN WATER MOLECULES IN PLEURAL FLUID.
Which characteristics describe sinuses?
THEY ARE OPEN TO THE NASAL CAVITY
THEY ARE LINED WITH MUCOUS MEMBRANE
A higher-than-normal breathing rate is termed
VENTILATION is another term for breathing, describing air movement into and out of the alveoli.
Which part of the bronchial tree contains irregularly shaped cartilaginous plates with successively decreasing amounts of cartilage in the walls as the diameter of the tube narrows?
Which are functions of the paranasal sinuses?
GIVE THE VOICE RESONANCE
LIGHTEN THE WEIGHT OF THE SKULL
In the hemoglobin molecule, oxygen binds to:
THE HEME GROUP
The partial pressure of carbon dioxide (Pco2) in alveolar gas and arterial blood is 40 mm Hg.
Attractions between water molecules in the pleural fluid cause the PLEURAE to stick together.
A pneumothorax occurs when AIR enters the pleural cavity.
Air passes from the larynx, into the trachea, and then into the BRONCHI
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