Chapter 30: The Respiratory System

Front 1

nasal conchae

Back 1

extend from the lateral walls of the nasal cavity.

Front 2

paranasal sinuses

Back 2

air-filled spaces within the skull bones that open into the nasal cavity.

Front 3

pharynx

Back 3

an organ of the respiratory system as well as the digestive system.

Front 4

larynx

Back 4

more commonly called the voice box. It sits superior to and is continuous with the trachea.

Front 5

thyroid cartilage

Back 5

the largest cartilage that forms the anterior wall of the larynx.

Front 6

epliglottic cartilage

Back 6

forms the framwork of the epiglottis.

Front 7

epliglottis

Back 7

the flap-like structure that closes off the larynx during swallowing.

Front 8

cricoid cartilage

Back 8

forms most of the posterior wall of the larynx and a small part of the anterior wall.

Front 9

glottis

Back 9

the opening between the vocal cords

Front 10

trachea

Back 10

commonly referred to as the windpipe, is a tubular organ made of rings of cartilage and smooth muscle.

Front 11

bronchial tree

Back 11

the distal end of the trachea branches and starts a series of tubes

Front 12

bronchi

Back 12

the first branches off the trachea

Front 13

bronchioles

Back 13

tertiary bronchi branch into these`

Front 14

alveoli

Back 14

very thin sacs made of simple squamous epithelial cells and are surrounded by capillaries.

Front 15

pleura

Back 15

produce a slippery fluid called serous fluid that helps the lungs slide easily along the throacic wall during breathing