-
converts food into chemical energy of ATP and produces large quantities of carbon dioxide gas
Cellular Respiration
-
two systems of the body that share the responsibility of supplying oxygen and eliminating carbon dioxide
- Cardiovascular system
- Respiratory System
-
the overall exchange of gasses between the atmosphere and the blood
Respiration
-
it is formed by a framework of cartilage and bone covered with skin and lined internally with mucous membrane
nose
-
the bridge of the nose is formed by the ___ that help and support the external nose and hold it in a fixed position
nasal bones
-
two openings on the undersurface of the nose
nostrils or external nares
-
forms the floor of the nasal cavity, separating the nasal cavity from the oral cavity
hard palate of the mouth
-
posteriorly, the internal nose connects with the pharynx via two openings called ___
internal nares
-
from the lacrimal or tear sacs that empty into the nose
nasolacrimal ducts
-
what are the paranasal sinuses
- sphenoidal
- frontal
- ethmoidal
- maxillary
-
vertical partition that divides the internal and external nose into right and left nasal cavities
nasal septum
-
portions of the nasal cavities just inside the nostrilss
vestibules
-
detected for the sense of smell
olfactory stimuli
-
conchae is also known as
turbinate bones
-
narrow passageways/ subdivisions of the nasal cavity
- superior meatus
- middle meatus
- inferior meatus
-
located in the membrane that lines the superior meatus
olfactory receptors
-
cells that produce mucus
goblet cells
-
it is also called the throat
pharynx
-
how long is the pharynx
5 inches or 13cm
-
it begins in the internal nares and extends part way down the neck
pharynx
-
position of the pharyns
posterior to the nasal and oral cavities; anterior the cervical vertebrae
-
it is the passageway of both air and food and forms a resonating chamber for speech sounds
pharynx
-
divisions of the pharynx
- nasopharynx
- oropharnx
- laryngopharynx
-
uppermost potion of the pharynx which has four openings
nasopharynx
-
second portion of the pharynx which has only one opening
oropharynx
-
opening or the oropharynx that connects with the mouth
fauces
-
it is a portion of the pharynx which is the common passageway of food and air
oropharynx
-
it is the lowermost portion of the pharynx
larynopharynx
-
it connects with the esophagus posteriorly and with the larynx anteriorly
laryngopharynx
-
it is also called the voicebox
larynx
-
it is a very short passageway that connects the pharynx with the trachea
larynx
-
its walls are supported by ___ pieces of cartilage. Three pieces are paired and three are single
nine
-
three single pieces of cartilage of he larynx
- thyroid cartilage
- epiglottis
- cricoid cartilage
-
it is also known as the Adam's apple
throid cartilage
-
it is a large, leaf-shaped piece of cartilage that lies at the tip of the larynx
epiglottis
-
part of the epiglottis that is attached to the thyroid cartilage
the stem part
-
part of the epiglottis that is unattached and is free to move up and down like a trap door
leaf part
-
it is the space between the vocal cords and the larynx
glottis
-
it is a ring of cartilage that forms the lowermost or interior walls of the larynx
cricoid cartilage
-
six paired cartilages of the larynx
- paired arytenoid cartilages
- corniculate cartilages
- cuneiform cartilages
-
ladle shaped and attached to the vocal cords and laryngeal muscles. They move the vocal cords
paired arytenoid cartilages
-
cone-shaped paired cartilages of the larynx
corniculate cartilages
-
rod-shaped paired cartilages of the larynx
cuneiform cartilages
-
two pairs of folds in the larynx
- vestibular folds
- vocal folds
-
upper pair of folds or the false vocal cords
vestibular folds
-
lower pair of folds or the true vocal cords
vocal folds
-
it is also referred to as the windpipe
trachea
-
the trachea is ___ inches in length and about ___ inch in diameter
-
it is found anterior to the esophagus and extends from the cricoid cartilage of the larynx to the 5th thoracic vertebra
trachea
-
it divides into the right and left bronchi
trachea
-
they beat upward and move the mucus dust package to the throat for elimination from the body
cilia
-
it is an incision into the trachea creating a new opening for air to enter
tracheostomy
-
bronchus that goes to the right lung
right primary bronchus
-
bronchus that goes to the left lung
left primary pronchus
-
bronchus that is more vertical, shorter and wider than the other
right primary bronchus
-
on entering the lungs, the primary bronchi divide to form smaller bronchi called ___
secondary or lobar bronchi
-
the right lung has ___ lobes and the left lung has ___ lobes
-
the secondary or lobular bronchi branch into ___
tertiary or segmented bronchi
-
the tertiary or segmented bronchi branch into ___
bronchioles
-
bronchioles branch into ___
terminal bronchioles
-
branching is commonly referred to as ___
bronchial tree
-
they are paired, cone-shaped organs located in and filling the pleural divisions of the thoracic cavity
lungs
-
serous membrane that enclose and protect each lung
pleural membrane
-
outer layer of the pleural membrane that attaches the lung to the thoracic cavity
parietal pleura
-
inner layer of the pleural membrane that covers the lungs
visceral pleura
-
a small space between the parietal pleura and the visceral pleura that contains a lubricating fluid
pleural cavity
-
prevents friction between the visceral and parietal pleura and allows them to slide past each other
pleural fluid
-
inflammation of the pleural cavity and is very painful
plueritis
-
**note**
- the right lung has three lobes and is thicker and broader than the left lung. it is also a bit shorter than the left because the diaphragm is higher on the right side, as it must make room for the liver that is found below
- the left lung is thinner, longer and narrower than the right
-
it is the segment of the lung tissue that each tertiary or segmental bronchi supplies
bronchopulmunary segment
-
small compartments of segments
lobules
-
the terminal bronchioles subdivide into microscopic branches called ___
respiratory bronchioles
-
respiratory bronchioles further subdivide into ___
2 to 11 alveolar ducts or atria
-
it is a cup-shaped or grapelike outpuching
alveolus
-
two or more alveoli hat share a common opening
alveolar sacs
-
membrane through which respiratory gasses move
alveolar-capillary or respiratory membrane
-
fluid concising of a mixture of lipoproteins
surfactant
-
helps prevent the alveoli from collapsing
surfactant
-
three basic processes of respiration
- ventilation or breathing
- external respiration
- internal respiration
-
movement of air between the atmosphere and the lungs
ventilation or breathing
-
two phases of ventilation
-
inspiration to move air into the lungs
inhalation
-
expiration to move air out of the lungs
exhalation
-
exchange of gasses between the lungs and the blood
external respiration
-
exchange of gasses between the blood and the body cells
internal respiration
-
the PCO2 in a capillary blood is ___
45 mmHg
-
the PCO2 in the alveolar air is ___
40 mmHg
-
the PO2 in the cappilary blood is ___
40 mmHg
-
the PO2 in the alveolar air is ___
104 mmHg
-
it is the lung volume that is the sum of two or more of four primary non-overlapping lung volumes
Lung capacity
-
it is the volume of gas in the lungs at the end of normal tidal volume exhalation
functional residual capacity
-
it is equal to the residual volume plus the expiratory reserve volume
functional residual capacity
-
it is the maximum volume of gas that can be inhaled from the end of a resting exhalation
inspiratory capacity
-
it is equal to the sum of the tidal volume and the inspiratory reserve volume
inspiratory capacity
-
it is the volume of gas in the lungs at the end of maximum inspiration
total lung capacity
-
it is equals the vital capacity and residual capacit
total lung capacity
-
it is the maximum volume of air that can be expelled at the normal rate of exhalation
vital capacity
-
it is equals the inspiratory reserve volume plus the tidal volume plus the expiratory reserve volume
vital capacity
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