Respiratory system

Master Your Respiratory System Knowledge

Test your understanding of the respiratory system with this comprehensive quiz. Covering topics from the anatomy of the respiratory tract to the mechanisms of gas exchange, this quiz is designed for biology students, educators, and anyone interested in human physiology.

Are you ready to challenge yourself? Here are some highlights:

23 engaging multiple-choice questions
In-depth coverage of the respiratory anatomy and functions
Score your knowledge and learn as you go!

23 Questions6 MinutesCreated by BreathingBrain101

Roles of the respiratory system

Supplying oxygen to the internal environment

Eliminating CO2 from the internal environment

Inspiration is when the pressure of oxygen is higher in the lungs than in the atmosphere

Expiration is when the pressure of CO2 is greater that the atmosphere

Inspiration is when the pressure of oxygen is lesser than the atmospere

Respiratory portion of RS

Transports gases to the lungs

Performs the gas excange between lungs and blood

Gas exchange happens between lumen of capillaries and alveolis

Includes alveolar ducts

Alveolar sacs

Trachea, bronchi and bronchioles

Nasal cavity

Vestibules are lined with stratified squamous epithelium

The internal nasal cavity is lined by olfactory epithelium

The olfactory segment is lined by olfactory epithelium

The internal nasal cavity is lined by respiratory epithelium

Vestibule

Sebaceous glands

Sweat glands

Is keratinized in its inferior part

Is non-keratinized in its inferior part; respiratory epithelium

Does not contain a mucous layer

Contains thick, short hairs; cilium

Paranasal sinuses

Are extentions of the nasal cavities

Found in bones of the skull

Cannot communicate with the nasal cavities

Rarely gets infected by viruses

Olfactory segment

Has chemoreseptors

Chemoreseptors plays a part in ability to taste

Chemoreseptors plays a part in ability to smell

Contains supporting cells

Basal cells

Olfactory cells

Basal cells are stemcells, renewing olfactory cells

Olfactory cells gives mechanicaql and physiological support

Pharynx

Connects the nasal and oral cavity

Nasopharynx

Oropharynx

Laryngopharynx

Nasopharynx is covered by stratified squamous epithelium

Nasopharynx is covered by respiratory epithelium

Oropharynx is covered by stratified squamous epithelium

Larynx

Connects the pharynx to the nasal cavity

Connects the pharynx to the trachea

Contains irregular shaped cartilage in its lamina propria

Phonation organ

"False vocal cords" are composed of vestibular cords

"True vocal cords" are composed of respiratory epithelium

"True vocal cords" are composed of stratified squamous epithelium

The composition of the tissue helps with protection from abration and desiccation from rapid air movement

Vocal ligaments has reticular fibers

Vocal ligament has elastic fibers

Vocalis muscle

Plays a part in controlling air flow

Plays a part in producing sound

Trachea

Bronchioles

Lined with simple squamous epithelium

Lined with ciliated simple columnar epithelium

Lined with ciliated simple cuboidal epithelium

Smooth muscle cells are present

Reticular fibers; circumferential layer

Elastic fibers; circumferential layer

Well developed SER and RER

Granules, GAGs and proteins

Poorly developed organelles

Bronchiole functions

Protection against oxidative pollutants and inflammation

Protection against parasites

Protection agains pulmonary emphysema

Detoxifies harmful compouds of the air

Respiratory bronchiole

Allows gas exchange

Alveoli

Alveoli are found on the surface of bronchioles

Alveoli are extentions from the lumen of bronchiole

Alvioli

Site of gas exchange

Seperated by a interalveolar septa

Type I pneumocyte: squamous, included in blood-air barries

Type II pneumocyte: Cuboidal septal cells; lowers surface tension

Cannot communicate with other alveoli

Has alveolar pores

Respiratory epithelium

Nasal cavity

Middle concha has olfactory epithelium

Nasal fossae contains swell bodies

Increase surface of respiratory epithelium and creates turbulence

Nasal fossae has vibrassae

Vestibule has sweat glands and goblet cells

Respiratory system

Master Your Respiratory System Knowledge

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