Respiratory System Worksheet

Respiratory System Worksheet
Match the structure to the number in the diagram. Make sure all numbers are correctly labeled. Fill in the table with the structure name and function. Turn in your homework with the worksheet.

Structure Number                                    Structure                                            Name Function
1
2
3
4
5
6
7
8
9
10
11


Answer the following questions:
1) What keeps food from going down our windpipe?



2) What role do red blood cells play in respiration?



3) How are plants our partners in breathing?



4) What is the purpose of the mucus in your nose?



5) How is the respiratory system linked to the cardiovascular system?

 Complete the following statements by inserting one of the words below in the answer blanks.

            cartilage                     moisten                      pressure                    voice box

            filter                            nostrils                       speak                         warm

            larynx                         pharynx                     vocal cords

Air enters the nasal cavity of the respiratory system through the _________.  The nasal cavity has several functions.  The major functions are to ______________, ________________, and ________________ the incoming air.  The passageway common to the digestive and respiratory systems, the ________________, is often called the throat; it connects the nasal cavity with the _____________ below.  Reinforcement of the trachea with ________________ rings prevents its collapse during _______________ changes that occur during breathing.  The larynx or __________________ is built from cartilage.  Within the larynx are the _______________________, which vibrate with exhaled air and allow an individual to ________________.

The figure below is a sagittal view of the upper respiratory structures.  Correctly identify all structures listed below.

                        nasal cavity                           vocal cords                            trachea

                        pharynx                                 oral cavity                              epiglottis

                        larynx                                     esophagus

           Using the key choices, select terms identified in the following descriptions by inserting the appropriate term in the answer blanks.

Key Choices:

            A.  alveoli                               D.  esophagus                      G.  trachea

            B.  bronchioles                       E.  pleura

            C.  epiglottis                           F.  bronchi

_____  1.  Smallest respiratory passageways.

_____  2.  Food passageway posterior to the trachea.

_____  3.  Closes off the larynx during swallowing.

_____  4.  Windpipe

_____  5.  Actual site of gas exchanges.

_____  6.  Membrane that lines the thoracic cavity and covers the surface of the lungs.

_____  7.  Tube that enters the right and left lungs.

       The figure below illustrates the gross anatomy of the lower respiratory system.  Label the areas/structure listed below.

            larynx                                     pleural space                                    lower lobe of right        lung

            trachea                                   diaphragm                                         bronchioles

            right bronchus                      upper lobe of right lung