Type
Crossword
Description

dome shaped muscle that that separating thorax from abdomen diaphragm
body cavity that connects nasal and oral cavities pharynx
chemical formula of carbon atom bonded to two oxygen atoms co2
chemical formula for oxygen o2
muscle groups situated between ribs that create and move chest intercostal
muscles in front of the abdomen that assists in regular breathing abdominal
exchange of air between the lungs and atmosphere ventilation
the act or process of releasing air from the lungs through the nose or mouth expiration
the drawing in of breath; inhalation inspiration
any minute branches into which a bronchus divides bronchiole
Cell responsible for production and secretion of surfactant Pneumocyte
Large membraneous tube reinforced by rings of cartilage Trachea
Network of microscopic blood vessels that connect arterioles with venules Capillary bed

Respiratory System Crossword Puzzle

Type
Crossword
Description

the cavity behind the nose and above the roof of the mouth that filters air and moves mucus and inhaled contaminants outward and away from the lungs. Nasal Cavity
voice box-passageway for air moving from pharynx to trachea; contains vocal cords. Larynx
one of the tubules forming the respiratory system. Trachea
The passages that branch from the trachea and direct air into the lungs. Bronchi
the paired organs in the thoracic cavity where gas exchange takes place between air in the alveoli and blood in the pulmonary capillaries. Lungs
progressively smaller tubular branches of the airways. Bronchioles
tiny sacs of lung tissue specialized for the movement of gases between air and blood. Alveoli
short structures projecting from a cell and containing bundles of microtubules that move a cell through its surroundings or move fluid over the cell's surface. Cilia
protective secretion of the mucus membranes. Mucus
passing or able to pass air in and out of the lungs normally. Breathing
the metabolic processes certain organisms obtaining energy from organic molecules. Respiration
the exchange of gases between the air in the alveoli and the blood in the pulmonary capillaries. external respiration
the uppermost cartilage of the larynx; covers the larynx during swallowing epiglottis
inhalation; the intake of air into the lungs inspiration
any of the fine branching blood vessels that form a network between the arterioles and venules. Capillaires

Respiratory System Terminology Crossword

Type
Crossword
Description

the entire process of gas exchange between the atmosphere and the cells respiration
a hollow space behind the nose nasal cavity
bones that curl out from lateral walls of the nasal cavity on each side, dividing the cavity into passageways nasal conchae
air-filled spaces located within the maxillary, frontal, ethmoid, and sphenoid bones of the skull and open into the nasal cavity paranasal sinuses
or throat, is behind the oral cavity, the nasal cavity and the lyrynx; the passage way for food traveling from the oral cavity to the esophagus and for the air passing between the nasal cavity and the larynx pharynx
the enlargement in the airway at the top of the trachea and below the pharynx; it conducts air in and out id the trachea and prevents foreign objects from entering the trachea larynx
the opening between the vocal cords glottis
usually stands upright and allows air to enter the larynx; helps protect from food and liquids to enter the air passages epiglottis
windpipe trachea
consists of branched airways leading from the trachea to the microscopic air sacs in the lungs bronchial tree
arise from the trachea at the level of the fifth thoracic vertebra primary bronchi
smaller tubes that continue to divide giving rise to others bronchioles
very thin tubes, lead to the alveolar sacs alveolar ducts
leads to smaller microscopic air sacs called alveoli alveolar sacs
smaller microscopic air sacs alveoli
soft, spongy, cone-shaped organs in the thoracic cavity lungs
a layer of serous membrane visceral pleura
folded back visceral pleura attached to each surface of the lung parietal pleura
the potential space between the visceral and parietal pleurae pleura cavity
the actions providing air movements, inhalation inspiration
exhalation expiration
synthesize a mixture of lipids and proteins surfactant
iron containing protein hemoglobin
combination of oxygenated blood with the iron atoms of hemoglobin oxyhemoglobin
a deficiency of O2 reaching the tissues hypoxia
carbon dioxide bonds with hemoglobin carbaminohemoglobin

Respiratory System Vocab Crossword

Type
Crossword
Description

Lymphatic tissue in the nasopharynx adenoids
air sac in the lungs alveolus
tip or uppermost portion of the lung apex
lower portion of the lung base
smallest branches of the bronchi bronchioles
branch of the trachea that is a passageway into the lung bronchus
expelled gas carbon dioxide
thin hairs attached to the mucous membrane cilia
muscle separating the chest and abdomen diaphram
lid-like piece of cartilage that covers the larynx epiglottis
breathing out expiration
slit-like opening to the larynx glottis
midline region where bronchi, blood vessels, and nerves enter and exit the lungs hilum of the lung
breathing in inspiration
voice box larynx
division of a lung lobe
region between the lungs in the chest cavity mediastinum
openings through the nose nares
inhaled gas oxygen
one of a pair of almond-shaped masses of lymphatic tissue in the oropharynx palantine tonsil
one of the air cavities in the bones near the nose paranasal sinus
outer layer of pleura lying closer to the ribs and chest wall parietal pleura
throat larynx
double-layered membrane surrounding each lung pleura
space between the folds of the pleura pleural cavity
essential part of the lung, responsible for respiration pulmonary parenchyma
process of moving air into and out of the lungs respiration
windpipe trachea
inner layer of pleura lying closer to the lung tissue visceral pleura

Respiratory System Crossword

Type
Crossword
Description

Site of gas exchange Alveoli
Tiny hair-like cells that sweep out foreign material in lungs. Cilia
Genetic disorder in which lungs are clogged with abnormally thick mucus. Cystic fibrosis
Thin sheet of muscle that play an important role in breathing. Diaphragm
A thin, moist, and slippery membrane that covers the outer surface of the lungs and lines the inner surface of the rib cage Pleura
Another word for inhalation. Inspiration
The volume of air that is inspired or expired in a single breath during regular breathing. Tidal Volume
The amount of pressure a gas exerts Partial pressure
A device that measures lung capabilities Respirometer
A process in which particles move from an area of higher concentration to an area of low concentration. Diffusion
Special receptors that detect changes of pH in blood. Chemoreceptors
Lung disease in which bronchioles swell and produce mucus. Bronchitis
Branches of windpipe that lead into the lungs Bronchi
Scientific name for the voice box Larynx
Condition in which the body cells do not have enough oxygen Hypoxia
Another term for exhalation Expiration
Infection that inflames the air sacs in one or both lungs. Pneumonia
This is where air first enters the body. Nasal cavity
Leads to the alveoli Bronchioles
Waste product of the respiratory system Carbondioxide

Breathing Word Search

Type
Word Search
Description

air
blood
nose
mouth
contract
expand
deflate
inflate
exhale
inhale
carbondioxide
oxygen
windpipe
alveolus
bronchioles
bronchus
trachea
intercostalmuscles
diaphragm
ribs
breathing
lungs

Gas exchange Crossword

Type
Crossword
Description

A gas produced in respiration that is passed out of the body from the lungs Carbon dioxide
Allows the lungs to move over one another without friction Pleural fluid
Another name for the chest cavity Thorax
the process of drawing air into and out of the lungs Ventilation
An abbreviation for a disease that affects the heart, caused by the nicotine and carbon monoxide found in cigarettes CHD
Allows air to pass from the mouth to the lungs Trachea
the process of breathing in inhalation
An infection of the bronchi bronchitis
A good ______ ______ maintains the concentration gradient in the lungs Blood supply
An addictive chemical found in cigarettes nicotine
Causes a range of lung conditions smoking
The process of breathing out air exhalation
A chemical process by which energy is released respiration
Artery that carries blood between the heart and lungs pulmonary
Two of these carry air into each lung bronchi
Where the walls of the alveoli are damaged and fuse together emphysema
A mechanical process to get oxygen into, and carbon dioxide out of, the lungs breathing
This model represents the lungs in a limited way Bell jar
Has an effect on breathing rate, the more you do the higher your breathing rate exercise
A carcinogen found in cigarette smoke Tar
Sheet of muscle that allows the thorax to ventilate diaphragm
Process by which gas exchange occurs in the lungs diffusion
Found centrally in the thorax heart
Small sac where gas exchange takes place Alveoli

The Respiratory System Crossword

Type
Crossword
Description

muscle moves air in and out the lungs Diaphragm
food and air both pass through Pharynx
where vocal cords are Larynx
windpipe Trachea
where the trachea forks into each lung Bronchi
small branching tubes Bronchioles
grape-like cluster of sacs where oxygen is absorbed Alveoli
internal sacs lined with epithelium; transports gases Lungs
lined with a mucous membrane; has little hairs that help filter the air you breathe in, blocking dirt and dust from getting into your lungs Nasal Cavity
the amount of air which enters the lungs during normal inhalation at rest Tidal Volume
the most air you can exhale after taking the deepest breath you can Vital Capacity
a series of organs responsible for taking in oxygen and expelling carbon dioxide Respiratory System
tiny hairs that line the bronchial tubes Cilia
a sticky fluid; collects dust, germs and other matter that has invaded the lungs Mucus
a waste product that can be lethal if allowed to accumulate Carbon Dioxide
a gas that your body needs to survive Oxygen
the mouth Oral Cavity
a flap of elastic cartilage that acts as a switch between the trachea and the esophagus Epiglottis
a muscular organ about the size of a closed fist that functions as the body’s circulatory pump Heart
opening through the nose carrying air into the nasal cavities Nares

The Respiratory System Crossword

Type
Crossword
Description

What is the large muscle seperating the chest cavity from the abdominal cavity that helps with breathing? Diaphragm
What is the windpipe also known as? Trachea
What are the small spaces within the skull that regulate the temperature and humidity of the air taken into the body called? Sinuses
What is the tube that carries air down into the windpipe? Pharynx
What is the flap over the trachea that prevents clogging? Epiglottis
What carry air into the lungs? Bronchi
What is the voicebox known as? Larynx
What are the small air sacs within the lungs associated with gas exchange? Alveoli
When inhaling, what do your lungs do? inflate
What is the thin lining within the lungs that allows them to inflate and deflate without loosing shape? Pleura
What are the tiny hairs that keep mucus and dirt out of your lungs? Cilia
Severe chest pain, shallow breathing and fever are symptoms of? Pleurisy
What would one do in order to clear the upper respiratory tract? Sneeze
What does oxygen bind to on a blood cell? Hemoglobin
When standing, respiration is? Higher
What is the breathing disorder characterized by coughing and wheezing? Asthma
What infection occurs when there is an inflammation of lungs where air sacs fill with pus and liquid? Pneumonia
How many lobes does the right lung have? three

Respiratory and Excretory System Crossword

Type
Crossword
Description

Biological system used for the process of respiration. Respiratory system
Contains nostrils; is used for smelling and breathing. Nose
Conveys air to and from the lungs; the windpipe. Trachea
Major air passages of the lungs that diverge from the windpipe. Bronchi
Pair of organs within the rib cage; with passages in which is drawn into. Lungs
The movement of oxygen from the outside air to the cells within tissues. Respiration
Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place. Alveoli
Contraction increases the volume of the thorax and so inflates the lungs. Diaphragm
The nasal cavity is a large air filled space above and behind the nose in the middle of the face. Nasal cavity
The hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans. Voice box
Biological system that removes excess. Excretory system
A pair of organs that excretes urine. Kidney
The duct by which urine passes from the kidney to the bladder. Ureter
A membranous sac in which urine is tored for excretion. Bladder
The duct by which urine is conveyed out of the body from the bladder. Urethra
A large lobed glandular organ in the abdomen of vertebrates. Liver

Respiratory system Crossword

Type
Crossword
Description

Upper respiratory tract Throat and nose
Lower respiratory tract, main organs of the respiratory system Lungs
Within the lungs are air passages Bronchial tree
At the ends of the bronchial tree are millions of tiny air sacs Alveoli
Air is carried into alveoli Inspiration
Carbon dioxide is carried up the airways and out of the body Expiration
Group of muscles used for exhaling Intercostal muscles
Most common illness that affects the respiratory system Common cold
An infection of the lungs that causes difficulty breathing Pneumonia
Swelling or inflammation of the bronchi Bronchitis
A fairly common condition that can make breathing difficult Asthma
Air sacs in the lungs that become enlarged and lose their elasticity Emphysema
When the cancer cells grow out of control and destroy the air sacs in the lungs Lung cancer
The cavity that connects the nose and mouth to the esophagus Pharynx
A tube that moves air to and from the lungs Trachea