MT 30 (LAB): RESPIRATORY SYSTEM

+True or False: The respiratory system delivers oxygen to the blood and removes nitrogen dioxide.

False

+True or False: The respiratory system plays a role in acid-base balance.

True

+Identification: What portion of the respiratory system includes the nasal cavity, pharynx, larynx, trachea, bronchi, and bronchioles?

Conducting Portion

+Identification: What portion of the respiratory system is responsible for gas exchange?

Respiratory Portion

+Fill in the blanks: The conducting portion functions in air passage, filtration, , and temperature regulation.

humidification

+Fill in the blanks: The respiratory portion consists of respiratory bronchioles, alveolar ducts, alveolar sacs, and .

alveoli

+True or False: The respiratory tract uses the same epithelial tissue throughout all regions.

False

+Identification: What type of epithelium is found in the trachea and primary bronchi?

Pseudostratified ciliated columnar epithelium with goblet cells

+Identification: What type of epithelium protects the oropharynx and larynx from abrasion?

Stratified squamous non-keratinized epithelium

+Identification: What type of epithelium lines the terminal and respiratory bronchioles?

Simple cuboidal epithelium

+Identification: What type of epithelium is associated with gas exchange in the alveoli?

Simple squamous epithelium

+Fill in the blanks: Type I pneumocytes are associated with exchange.

gas

+True or False: The lamina propria is dense connective tissue under the epithelium.

False

+Identification: What connective tissue layer under the epithelium is rich in elastic fibers and immune cells?

Lamina propria

+Identification: What muscular structure regulates airway diameter in the bronchioles?

Smooth muscle

+True or False: Cartilage is present in the bronchioles.

False

+Fill in the blanks: The trachea contains -shaped cartilage rings.

C

+Identification: What structure has cartilage plates instead of cartilage rings?

Bronchi

+Fill in the blanks: The respiratory portion is responsible for exchanging and between the air and blood.

oxygen-carbon dioxide

+Identification: What structure produces mucus and helps clear debris using cilia?

Goblet cells

+True or False: The pseudostratified ciliated columnar epithelium is primarily protective against abrasion.

False

+True or False: The respiratory system delivers oxygen to the blood and removes nitrogen dioxide.

False

+True or False: The respiratory system plays a role in acid-base balance.

True

+Identification: What portion of the respiratory system includes the nasal cavity, pharynx, larynx, trachea, bronchi, and bronchioles?

Conducting Portion

+Identification: What portion of the respiratory system is responsible for gas exchange?

Respiratory Portion

+Fill in the blanks: The conducting portion functions in air passage, filtration, , and temperature regulation.

humidification

+Fill in the blanks: The respiratory portion consists of respiratory bronchioles, alveolar ducts, alveolar sacs, and .

alveoli

+True or False: The respiratory tract uses the same epithelial tissue throughout all regions.

False

+Identification: What type of epithelium is found in the trachea and primary bronchi?

Pseudostratified ciliated columnar epithelium with goblet cells

+Identification: What type of epithelium protects the oropharynx and larynx from abrasion?

Stratified squamous non-keratinized epithelium

+Identification: What type of epithelium lines the terminal and respiratory bronchioles?

Simple cuboidal epithelium

+Identification: What type of epithelium is associated with gas exchange in the alveoli?

Simple squamous epithelium

+Fill in the blanks: Type I pneumocytes are associated with exchange.

gas

+True or False: The lamina propria is dense connective tissue under the epithelium.

False

+Identification: What connective tissue layer under the epithelium is rich in elastic fibers and immune cells?

Lamina propria

+Identification: What muscular structure regulates airway diameter in the bronchioles?

Smooth muscle

+True or False: Cartilage is present in the bronchioles.

False

+Fill in the blanks: The trachea contains -shaped cartilage rings.

C

+Identification: What structure has cartilage plates instead of cartilage rings?

Bronchi

+Fill in the blanks: The respiratory portion is responsible for exchanging and between the air and blood.

oxygen-carbon dioxide

+Identification: What structure produces mucus and helps clear debris using cilia?

Goblet cells

+True or False: The pseudostratified ciliated columnar epithelium is primarily protective against abrasion.

False

+Identification: What type of epithelium lines the vestibules of the nasal cavities?

Stratified squamous (keratinized to nonkeratinized)

+Identification: What glands are found in the vestibules of the nasal cavities?

Sebaceous and sweat glands

+Identification: What epithelium type lines most areas of the nasal cavities?

Respiratory epithelium

+Identification: What type of glands are found in most areas of the nasal cavities?

Seromucous glands

+Fill in the blanks: The superior areas of nasal cavities have epithelium with bipolar neurons.

olfactory

+Identification: What glands are associated with the olfactory region of the nasal cavity?

Serous (Bowman) glands

+True or False: The nasopharynx and posterior oropharynx are lined only by respiratory epithelium.

False

+Identification: What glands are present in the nasopharynx and posterior oropharynx?

Seromucous glands

+Identification: What two types of epithelium are found in the larynx?

Respiratory and stratified squamous epithelium

+Identification: What glands are found in the larynx?

Mucous glands and smaller seromucous glands

+Identification: What type of epithelium lines the trachea?

Respiratory epithelium

+Fill in the blanks: The glands of the trachea are mainly glands, with some serous or mixed glands.

mucous

+Identification: What type of epithelium lines the bronchi?

Respiratory epithelium

+Identification: What type of cartilage supports the bronchi?

Irregular hyaline cartilage plates

+Fill in the blanks: The bronchi have prominent bands of smooth muscle.

spiral

+True or False: Bronchioles have cartilage for structural support.

False

+Identification: What type of epithelium is found in the bronchioles?

Simple ciliated cuboidal to columnar epithelium with club cells

+Identification: What supports the bronchioles structurally?

Prominent circular layer of smooth muscle

+Identification: What epithelium lines the terminal bronchioles?

Simple cuboidal epithelium with ciliated cells and club cells

+Fill in the blanks: Terminal bronchioles have a thin, circular layer of smooth muscle.

incomplete

+Identification: What type of epithelium lines the respiratory bronchioles?

Simple cuboidal epithelium with ciliated cells, club cells, and scattered alveoli

+True or False: Respiratory bronchioles have prominent smooth muscle throughout.

False

+Fill in the blanks: Smooth muscle fibers in respiratory bronchioles are mostly located around openings.

alveolar

+Identification: What type of epithelium lines alveolar ducts and sacs?

Simple cuboidal between alveoli

+Identification: What supports alveolar ducts and sacs structurally?

Bands of smooth muscle around alveolar openings

+Identification: What types of cells line the alveoli?

Type I and Type II pneumocytes

+True or False: Alveoli are supported by cartilage plates.

False

+Fill in the blanks: The alveoli are supported by a network of and fibers.

elastic-reticular