Bio 152 Flashcards
Which of the following is NOT involved in respiration?
The respiratory zone is composed of:
respiratory bronchioles, alveolar ducts, and alveoli, all microscopic structures.
Which of the following are the hairs within the nasal cavity that filter coarse particles, such as pollen and dust, from inspired air?
__________ is the inflammation of the nasal mucosa accompanied by excessive mucus production, nasal congestion, and postnasal drip.
List the regions of the pharynx from superior to inferior:
nasopharynx, oropharynx, laryngopharynx
The __________ is covered by a mucosa containing taste buds and keeps food out of the lower respiratory passages.
The bronchial, or respiratory, tree branches approximately 23 times within the lungs.
The __________ are the main site of gas exchange within the lungs.
The __________ is the elastic connective tissue found within the lungs.
__________, or lung collapse, is a homeostatic imbalance that occurs when a bronchiole becomes plugged.
Which of the following occurs during infant respiratory distress syndrome (IRDS)?
The baby is unable to keep his or her alveoli inflated between breaths because of a lack of surfactant.
states that the total pressure exerted by a mixture of gases is the sum of the pressures exerted independently by each gas in the mixture.
states that when a gas is in contact with a liquid, that gas will dissolve in the liquid in proportion to its partial pressure.
Which form of hypoxia occurs when body cells are unable to use O2 even though adequate amounts are delivered? (This type of hypoxia is usually the consequence of metabolic poisons, such as cyanide.)
Which form of CO2 transport accounts for the greatest amount of CO2 transported in blood?
as bicarbonate ions in plasma
The increase in ventilation in response to metabolic needs is called __________.
Emphysema is distinguished by permanent enlargement of the alveoli and loss of lung elasticity.
Major function of the respiratory system:
To supply the body with oxygen and dispose of carbon dioxide.
Functions of the respiratory system:
-Carbon dioxide removal -Vocalization
-Supply of oxygen -Thermoregulation
-Regulation of blood PH -Excretion
-Housing olfactory receptors -Filtering air
How is oxygen transported in the blood:
How is carbon dioxide transported in the blood:
Hemoglobin and carbonic acid
Carbon dioxide water and radiant energy produces monosaccharide's (glucose) and oxygen (chloroplast).
Glucose and oxygen produces carbon dioxide, water, and energy (ATP) in cytosol and mitochondria.
Expansion of the lungs
Tightening of the lungs.
Four processes of Respiration and functions:
1. Pulmonary Ventilation: (Inspiration + Expiration) Air is moved into and out of the lungs, gases are continuously changed and refreshed.
2. External Respiration: Oxygen diffuses from lungs to blood, Carbon dioxide diffuses from lungs to blood.
3. Transport of respiratory gases: Oxygen transported from lungs to tissue cells of body, Carbon dioxide transported from tissue cells to lungs. (Cardiovascular system allows transport, blood is transporting fluid).
4. Internal Respiration: Oxygen diffuses from blood to tissue cells, Carbon dioxide diffuses from tissue cells to blood.