APHY 102 Lecturer EXAM 3 QUESTIONS AND
ANSWERS
The stomach is C-shaped and extends from the duodenum to the spleen.
False
From the stomach, food passes into the duodenum, then the jejunum, and then the ileum.
True
Which of the following is true about bile?
It is produced by the liver.
The pharynx functions as a ______, whereas the larynx functions as a ______.
passageway for air and food; passageway for air only.
What respiratory volumes, when added together,equal the vital capacity?
VC= TV+IRV+ERV
What is a function of the digestive system?
Ingests and breaks down food, absorbs nutrients, and defecates the unabsorbed material.
Activities of the digestive system generally increase when it is stimulated by ________ impulses.
parasympathetic
You have just jumped into the ocean after your boat began to sink. Luckily, you found an air tank
before you jumped. Unluckily, the air tank has been used. The gauge says there is now exactly
30,000mL of air left in the tank. In a panic, you take in the full inspiratory reserve volume each time
you inhale. How many times can you inspire at this panicked volume before the tank runs out?
60 times.
Following a normal inspiration, the volume of additional air that enters the lungs during forced
maximal inspiration is called the __________.
inspiratory reserve volume.
Name the volume of air that is moved in (or out) during a single quiet respiratory cycle.
Tidal volume.
Blood entering the lungs from the right ventricle has a Pco2 of 40 mmHg and a Pco2 of 45 mmHG.
False
The process called ________ involves gas exchange between the atmosphere and the cells of the
body and the resulting chemical reactions that provide the cells with energy to function.
pulmonary ventilation.
Where are the vocal cords located?
, larynx
If you take a piece of white bread and chew it slowly for a long period of time, the flavor will become
very sweet. This is due to the starch molecules in the bread being digested into smaller sugars that
trigger a sweet sensation. Which substance is responsible for this breakdown?
Salivary amylase
What is the uvula?
A projection from the soft palate to prevent food from entering the nasal cavity.
What is the correct order of structures, from superior to inferior?
Nasopharynx ->orapharynx -> laryngopharynx
Describe the trachea
Compromised of C-shaped cartilage rings.
What causes air to move into lungs during inspiration?
pressure gradient between atmosphere and alveoli.
What respiratory volumes is the largest?
Inspiratory reserve volume.
The right lungs _______ lobes; the left lung has ______ lobes
three; two
Why do premature newborns often develop respiratory distress syndrome?
They do not have sufficient levels of surfactant.
"I'm going to hold my breath until I die and it will be all your fault."shrieked 6-year old Riley at her
father. Why would she be unable to carry out her threat?
Increased CO2 and hydrogen ion concentrations and decreased oxygen concentration stimulate her
chemoreceptors, triggering inspiration.
Another word for breathing is ventilation.
True
Matthew takes a drug that inhibits the production of HCl in the stomach to ease the symptoms of a
gastric ulcer. If he takes it for a long time, digestion of which nutrient would be affected the most?
proteins
We have an expert-written solution to this problem!
The esophagus provides a passageway for substances from the larynx to the bronchi.
False
ANSWERS
The stomach is C-shaped and extends from the duodenum to the spleen.
False
From the stomach, food passes into the duodenum, then the jejunum, and then the ileum.
True
Which of the following is true about bile?
It is produced by the liver.
The pharynx functions as a ______, whereas the larynx functions as a ______.
passageway for air and food; passageway for air only.
What respiratory volumes, when added together,equal the vital capacity?
VC= TV+IRV+ERV
What is a function of the digestive system?
Ingests and breaks down food, absorbs nutrients, and defecates the unabsorbed material.
Activities of the digestive system generally increase when it is stimulated by ________ impulses.
parasympathetic
You have just jumped into the ocean after your boat began to sink. Luckily, you found an air tank
before you jumped. Unluckily, the air tank has been used. The gauge says there is now exactly
30,000mL of air left in the tank. In a panic, you take in the full inspiratory reserve volume each time
you inhale. How many times can you inspire at this panicked volume before the tank runs out?
60 times.
Following a normal inspiration, the volume of additional air that enters the lungs during forced
maximal inspiration is called the __________.
inspiratory reserve volume.
Name the volume of air that is moved in (or out) during a single quiet respiratory cycle.
Tidal volume.
Blood entering the lungs from the right ventricle has a Pco2 of 40 mmHg and a Pco2 of 45 mmHG.
False
The process called ________ involves gas exchange between the atmosphere and the cells of the
body and the resulting chemical reactions that provide the cells with energy to function.
pulmonary ventilation.
Where are the vocal cords located?
, larynx
If you take a piece of white bread and chew it slowly for a long period of time, the flavor will become
very sweet. This is due to the starch molecules in the bread being digested into smaller sugars that
trigger a sweet sensation. Which substance is responsible for this breakdown?
Salivary amylase
What is the uvula?
A projection from the soft palate to prevent food from entering the nasal cavity.
What is the correct order of structures, from superior to inferior?
Nasopharynx ->orapharynx -> laryngopharynx
Describe the trachea
Compromised of C-shaped cartilage rings.
What causes air to move into lungs during inspiration?
pressure gradient between atmosphere and alveoli.
What respiratory volumes is the largest?
Inspiratory reserve volume.
The right lungs _______ lobes; the left lung has ______ lobes
three; two
Why do premature newborns often develop respiratory distress syndrome?
They do not have sufficient levels of surfactant.
"I'm going to hold my breath until I die and it will be all your fault."shrieked 6-year old Riley at her
father. Why would she be unable to carry out her threat?
Increased CO2 and hydrogen ion concentrations and decreased oxygen concentration stimulate her
chemoreceptors, triggering inspiration.
Another word for breathing is ventilation.
True
Matthew takes a drug that inhibits the production of HCl in the stomach to ease the symptoms of a
gastric ulcer. If he takes it for a long time, digestion of which nutrient would be affected the most?
proteins
We have an expert-written solution to this problem!
The esophagus provides a passageway for substances from the larynx to the bronchi.
False
