RESPIRATORY SYSTEM Flashcards
- involves chemical and physical processes by which an
organism exchanges gasses with the environment - osmotic and chemical process
Respiration
also called breathing, refers to the process of air flow into the lungs during
inhalation (inspiration) and out of the lungs during exhalation (expiration)
pulmonary ventilation
refers to the movement of air in and out of the alveoli
Alveolar ventilation
brought by cellular respiration that
involves metabolic reactions such converting chemical energy from oxygen
or nutrients into adenosine triphosphate (ATP), then release of waste
products
oxygen utilization
- (oxygen and carbon dioxide) across a membrane in
the lungs - oxygen diffuses from the air capillaries into the blood and carbon dioxide from the blood into the air capillaries
gas exchanges
involving ventilation and gas
exchange in the lungs
external respiration
gas exchange between
the blood and other tissues.
internal respiration
structures of respiratory system (7)
- nasal cavity
- pharynx
- larynx
- trachea
- bronchi
- bronchioles
- pulmonary alveoli
division based on location (2)
- upper respiratory
- lower respiratory
includes nasal cavity, pharynx, and larynx
upper respiratory
includes trachea and lungs
lower respiratory
division based on function (2)
- conducting divisions
- respiratory division
includes nasal cavity, pharynx, larynx, trachea, bronchi, and bronchioles
conducting divisions
includes respiratory bronchioles, alveolar ducts and sacs, and pulmonary alveoli
respiratory division
envelope the lungs and form vacuum chambers around the lungs
two pleural sacs
including associated muscles
thoracic cage
a dome-shaped muscle located below the lungs, and separate the thoracic and abdominal cavities
diaphragm
thoracic volume ______ during inspiration and ______ during expiration
increasing - decreasing
occur when more air is needed than movement of the diaphragm produces
costal or thoracic breathing
occurs during ordinary quiet breathing
abdominal or diaphragmatic breathing
refers to a normal quiet respiration
eupnea
refers to difficulty in breathing
dyspnea
refers to absence or cessation of respiration
apnea
refers to increased dept or rate of breathing or both
hyperpnea
refers to a rapid, shallow breathing
polypnea
upper respiratory tract (4)
- nose
- paranasal sinuses
- pharynx
- larynx
- is embodied within the skeleton of the face
- extends from about the transverse level of the eyes to the rostral extremity of
the head
nose
part of the nose that is rostral to the eyes
facial part
part of the nose that is dorsal to the mouth
oral part
the external openings of the respiratory tract
external nares or nostrils
nose of horse
- lacks planum nasale
- covered with fine hair
nose of large ruminants (ox, cattle, carabao)
nasolabial planum forming the muzzle
nose of small ruminants (sheep and goat) and dogs
only have planum nasale
nose of pigs
distinct planum rostrale, corresponds to the snout that supports the rostral bone
a deep median groove than can be observed that divides the upper lip of small ruminants
philtrum
is separated from the mouth by the hard and soft palates, and separated into two isolated halves by a medial nasal spectrum
nasal cavity
a thin scroll-like (dorsal, ventral, and ethmoidal) and also known as turbinate bones
nasal concha
a mucous membrane lining the ethmoidal conchae
olfactory epithelium
(dorsal, middle, ventral, and common), referring to the air passages created by the turbinate bones
nasal meatus
an unpaired facial bone located midsagittal and articulates with the palatine process of the maxillary bone
vomer
- are air-filled cavities that communicate with the nasal cavity
- can be found in the maxillary, frontal, sphenoidal, and palatine bones
- may provide some protection and insulation to the head
paranasal sinuses