Respiratory System RRS-209 Lecture Quiz

<p>Bronchi (B)</p> Signup and view all the answers

<p>Detoxify harmful substances (B)</p> Signup and view all the answers

<p>Conducting portion (C)</p> Signup and view all the answers

<p>Alveoli are involved in gas exchange. (D)</p> Signup and view all the answers

<p>Sense of smell (B)</p> Signup and view all the answers

<p>Pseudostratified ciliated columnar epithelium (A)</p> Signup and view all the answers

<p>Squamous cells (B)</p> Signup and view all the answers

<p>To protect against larger particles (C)</p> Signup and view all the answers

<p>In the roof of the nasal cavity (A)</p> Signup and view all the answers

<p>Yellow and pigmented (B)</p> Signup and view all the answers

<p>Bowman's glands (D)</p> Signup and view all the answers

<p>Olfactory (chemoreceptor) cells (A)</p> Signup and view all the answers

<p>Act as progenitor cells (A)</p> Signup and view all the answers

<p>It acts as an airway sphincter during swallowing. (A)</p> Signup and view all the answers

<p>Nonkeratinized stratified squamous epithelium (B)</p> Signup and view all the answers

<p>To prevent the trachea from collapsing. (C)</p> Signup and view all the answers

<p>Elastic cartilage (B)</p> Signup and view all the answers

<p>It is lined with respiratory epithelium. (B)</p> Signup and view all the answers

<p>Both hyaline and elastic cartilage (C)</p> Signup and view all the answers

<p>Seromucous mixed glands (A)</p> Signup and view all the answers

<p>20 (B)</p> Signup and view all the answers

<p>Basal cells (C)</p> Signup and view all the answers

<p>They are non-motile. (D)</p> Signup and view all the answers

<p>To clear olfactory cilia. (B)</p> Signup and view all the answers

<p>To enable elastic recoil after expiration (D)</p> Signup and view all the answers

<p>Stratified squamous and respiratory epithelium (C)</p> Signup and view all the answers

<p>Ciliated pseudostratified columnar epithelium (D)</p> Signup and view all the answers

<p>In the olfactory bulb (D)</p> Signup and view all the answers

<p>They have frequently invaginated nuclei. (B)</p> Signup and view all the answers

<p>To secrete mucus (B)</p> Signup and view all the answers

<p>To sweep the mucous layer toward the nasal cavity. (C)</p> Signup and view all the answers

<p>Between the ends of cartilage (B)</p> Signup and view all the answers

<p>Secretion from Bowman's glands (D)</p> Signup and view all the answers

<p>Enteroendocrine cells (D)</p> Signup and view all the answers

<p>Preventing tracheal collapse (B)</p> Signup and view all the answers

<p>Nicotine exposure (B)</p> Signup and view all the answers

<p>Movement of cilia and secretion of mucus (D)</p> Signup and view all the answers

The respiratory system is divided into conducting and respiratory portions.

The parts of the respiratory system that move air, but don't exchange gases.

The parts of the respiratory system where gas exchange occurs.

Warms, moistens, and filters inhaled air, plays a role in smell.

Filter large particles from the inhaled air.

The smallest branches of the conducting airways.

Tiny air sacs in the lungs where gas exchange occurs.

Special cells in bronchioles. Their function is still under investigation, but their role is likely critical to the health of the airways.

The pseudostratified ciliated columnar epithelium lining most of the nasal cavity, except the vestibule and olfactory regions.

Specialized epithelium in the upper nasal cavity, crucial for detecting odors.

Specialized proteins within olfactory cells that bind to odor molecules.

The anterior part of the nasal cavity lined with skin and vibrissae (hairs).

Columnar cells in olfactory epithelium that support and nourish olfactory receptors.

Bipolar neurons in olfactory epithelium that detect odors.

The internal area of the nose, divided into vestibule and olfactory regions.

Short, stiff hairs in the nasal vestibule that prevent large particles from entering.

A rounded structure at the apical end of an olfactory dendrite, projecting above the surface of sustentacular cells.

Odoriferous substances dissolved in serous secretions bathe the olfactory cilia, stimulating them.

Small, rounded cells located close to the basal lamina. They act as stem cells for olfactory and sustentacular cells.

The layer of connective tissue beneath the olfactory epithelium. It contains Bowman's glands.

Serous glands found in the lamina propria. Their secretions clear the olfactory cilia, allowing new scents to be detected.

Large air-filled cavities located within certain skull bones (ethmoid, sphenoid, frontal, and maxillary).

A thin mucous membrane with pseudostratified columnar ciliated epithelium and goblet cells.

A tube connecting the middle ear to the throat, allowing pressure equalization and explaining why ear infections often accompany sore throats.

The larynx, or voice box, acts as a passageway for air and also produces sound through the vibration of vocal cords.

The vocal cords are located inside the larynx, specifically within the vocal folds.

The larynx is supported by hyaline and elastic cartilages. Hyaline cartilage is found in the thyroid, cricoid, and lower parts of the arytenoids. Elastic cartilage makes up the epiglottis, corniculate, cuneiform, and vocal processes of the arytenoids.

The epiglottis is a flap of elastic cartilage that covers the larynx during swallowing, preventing food or drink from entering the airway.

The larynx is lined with respiratory epithelium, except for the anterior surface of the epiglottis and vocal cords, which are lined with stratified squamous epithelium.

The trachea, or windpipe, is a tube made up of C-shaped rings of hyaline cartilage, connected by smooth muscle that helps regulate airflow.

The trachea is lined with respiratory epithelium, which includes cilia that move mucus upward, trapping and removing foreign particles.

A thin, elastic membrane separating the lamina propria from the submucosa in the trachea. It's responsible for the trachea's ability to spring back after exhaling.

A layer of connective tissue beneath the lamina propria in the trachea. It contains glands that secrete mucus into the airway.

A layer in the trachea composed of fibrous connective tissue and C-shaped hyaline cartilage rings. Provides structural support and helps keep the airway open.

Bundles of smooth muscle fibers located on the posterior wall of the trachea. Help regulate airway diameter.

The lining of the airways, composed of several cell types, including ciliated columnar cells, goblet cells, and basal cells.

A mechanism that removes inhaled particles from the respiratory tract. It relies on the coordinated action of cilia and mucus.

Specialized cells in the respiratory epithelium that produce and secrete mucus, which traps inhaled particles.

Cells in the respiratory epithelium that have neuroendocrine functions. They produce hormones and play a role in sensing oxygen levels and lung repair.