CHAPTER 5 – RESPIRATORY SYSTEM
Name: ___________________________ ID: ________________ Tut Grp: ______________
1. Match the following.
Phrenic nerve
Palate
Concha
Esophagus
Glottis
Terminal bronchioles
Vestibular folds
Thyroid cartilage
Alveoli
Epiglottis
Alveolus
Cricothyroid ligament
Trachea
Cricoid cartilage
visceral pleura
Parietal pleura
a) Unpaired cartilage covering the opening of larynx (glottis) during deglutition - ________________
b) Food and fluid passageway inferior to the laryngopharynx - _________________________
c) Place where most gas exchange takes place (some exchange takes place in the alveolar ducts and
respiratory bronchioles). ______________________
d) Site from which oxygen enters the pulmonary blood - ______________________
e) Tubes that supply the respiratory bronchioles.-_____________________________
f) Ligaments that close together to prevent materials from entering the larynx.- _________________
g) Forms the Adam’s apple. - ___________________________
h) "floor" of the nasal cavity - ______________________________
i) Increases air turbulence in the nasal cavity - ______________________________
j) Pleural layer lining the walls of the thorax - ___________________________
k) Nerve that activates the diaphragm during inspiration - __________________________
l) Extends from the larynx and divides to form two tubes; supported by C-shaped cartilages.
___________________________
2. Define the following:
External respiration:
__________________________________________________________________________________
Internal respiration:
__________________________________________________________________________________
3. Label the following diagram.
CHAPTER 5 – RESPIRATORY SYSTEM
A:_____________________________________
B:__________________________________
C:_____________________________________
D:__________________________________
E:_____________________________________
F:__________________________________
G:_____________________________________
H:__________________________________
4. What is the significance of the fact that the human trachea is reinforced with cartilage rings?
__________________________________________________________________________________
5. What is the significance of the fact that the human tracheal rings are incomplete posteriorly?
__________________________________________________________________________________
6. The tracheal epithelium is ciliated and has goblet cells. What is the function of each of these
modifications?
__________________________________________________________________________________
7. Trace a molecule of oxygen from the external nares to the pulmonary capillaries of the lungs.
CHAPTER 5 – RESPIRATORY SYSTEM
Nares___________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
8. Why does oxygen move from the alveoli into the pulmonary capillary blood?
__________________________________________________________________________________
9. List the functions of the pleural membranes.
__________________________________________________________________________________
10. The questions below are based on the anatomical dissection video by Dr Gunther viewed during
Respiratory System lecture.
a. During inflation of the donor’s lungs, do the lungs inflate part by part or as a whole, like a
balloon?
___________________________________________________________________________
b. What happened when the pressure was released?
___________________________________________________________________________
c. What type of tissue ensures this phenomenon?
___________________________________________________________________________
11. What respiratory center sets the respiratory rhythm by automatically initiating respiration?
Where is this center located?
__________________________________________________________________________________
12. Describe in your own words, how cerebral cortex, levels of CO2&O2, proprioceptors, inflation
reflex, temperature changes, pain and irritation of the airways modify respiration.
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________