Respiratory
What are the 4 functions of the upper respiratory tract?
1. filter incoming air
2. warming incoming air
3. reabsorbing water from outgoing air
4. moving air towards the lower respiratory tract
Respiration refers to the two integrated process that are:
internal and external respiration
The chemical digestion that occurs in the mouth involves
carbs and lipids
oxygen must be continuously provided to the body tissues for what process?
cellular respiration
Which of the following is NOT a method of transport of carbon dioxide through the blood?
A) on hemoglobin
B) dissolved in plasma
C) as carbonic acid in red blood cells
D) as carbon dioxide gas inside red blood cells
E) as bicarbonate ions in plasma
D. as carbon dioxide gas inside red blood cells
What has the highest volume in healthy adults?
vital capacity
peristalsis that propels food
carbon dioxide must be eliminated from the body in order to
prevent dangerous pH shifts
What is the dominant factor influencing respiratory activity?
carbon dioxide levels
Why is inhaling through the nostrils is preferred over inhaling through the mouth?
The process of inflation _____ volume and _____ pressure in the lungs.
Increase, decreases
A low LDL/HDL ratio is
Hypocapnia
At which structure do the lungs end?
Alveoli
What happens to lung volume following the exhalation process.
Is decreases passively.
Jejenum
What are the fat soluble vitamins?
A D E K
Why does Sarah feel hungry even when her blood sugar is high?
Sarah feels hungry because her cells are not effectively taking in the glucose due to insulin resistance. Even though her blood sugar is high, her cells are starving for glucose which is triggering hunger signals.
What is the site of gas exchange?
Alveoli
During quiet breathing, inhalation is ____ and exhalation is ___.
active, passive
Which of the following is not a function of the large intestine?
A) absorb vitamins produced by bacteria
B) absorb ingested vitamins
C) compact indigestible contents
D) store feces
E) reabsorb water
B. absorb ingested vitamins
What is the pH of the stomach?
~2
What cells secrete hydrochloric acid?
parietal cells