Test 6 (Chapters 35, 36, 38) Flashcards
Which of the following structures is not apart of the upper respiratory tract?
Trachea
Which part of the respiratory system does not function as an air distributor?
Alveoli
Which sequence is the correct pathway for air movement through the nose and into the pharynx?
Interior nares, vestibules, nasal cavity meatuses, posterior nares
Which of the following is not a paranasal sinus?
Mandibular
The true vocal cords in the rima glottidis are called the:
Glottis
Aspirated objects tend to lodge in the:
Right bronchus
The fluid coating the alveoli that reduces surface tension is called:
Surfactant
Which of the following is not an area of the lungs:
Superior Fissure
True or false: Raising the ribs decreases the depth and width of the thorax
False
Boyle’s law states what?
The volume of a gas is inversely proportional to its pressure
When the diaphragm contracts, the volume of the thorax increases thoracic pressure:
Decreases, and air rushes into the lungs
Quiet inspiration is the function of:
The diaphragm and external intercostal muscles
During normal quiet respiration, the amount of air exchange between the lungs and atmosphere is called ______ and has a volume ______ mL.
Tidal volume: 500
Functional residual capacities (FRC) equals:
ERC + RV
Eupnea is a term used to describe:
Normal breathing
Under normal conditions, air in the atmosphere exerts a pressure of:
760 mmhg
Areas where gas exchange cannot take place are:
Anatomical dead spaces, nose pharynx/larynx, trachea and bronchi
All of the following are regulated processes associated with the functioning respiratory system except:
Control of cell production
Dalton’s law is also known as what?
The law of partial pressures
The term that means the same thing as breathing is:
Pulmonary ventilation
Which of the following does not occur during inspiration?
The diaphragm relaxes
The young adult male can have the vital capacity of ____ mL.
4800
The amount of air that can be forcibly exhaled after expiring the tital volume is known as the:
Expiratory reserve volume
Which of the following is correct?
VC vile = TB + IRV + ERV vile
The diving reflex is responsible for:
The astonishing recovery of near victims in cold water
Starting from the deepest layer and moving toward the most superficial, the layers of the wall of the GI tract are:
Mucosa, submucosa, muscolaris, serosa
The serosa is actually:
Visceral peritoneum
The hard palate consists of portions of:
4 bones; 2 maxillae; 2 palentine
Which of the following is an accurate description of salivary glands?
They secrete about 1 liter of saliva per day
The crown of a tooth is covered with:
Enamel
Teeth that do not appear as deciduous teeth are:
Premolars
The act of swallowing moves a mass of food called a _____ from the mouth to the stomach.
Bonus
Which of the following statements is not true of the esophagus?
It lies anterior to the trachea and posterior to the heart
Which of the following controls the opening of the stomach into the small intestine?
Pyloric sphincter
Which of the layers of the muscolaris is present only in the stomach?
Oblique muscle air
The first baby tooth on average appears at age:
6 months
The dentin of the tooth contains ____ which consists of connective tissue, blood, and lymphatic vessels and nerves
Pulp cavity
Which of the following teeth is missing from the deciduous arch?
Second premolars
The third molars generally erupt at the age of:
17
A general term for an infection of the gum is:
Gingivitis
The ducts of the _____ glands open into the floor of the mouth
Sublingual
The stomach:
Secretes intrinsic factor
Another name for the third molar is:
Wisdom tooth
After food has been chewed, it is formed into a small rounded mass called:
Bolus
