Chapter 3&4 Flashcards
Pharynx, Larynx, and Soft Palate
What travels through the pharynx?
air and food
What are the three divisions of the pharynx?
Nasopharynx, Oropharynx, Laryngeal pharynx
What two systems does the pharynx share a passageway between?
Respiratory and Digestive system
What ONLY portion of the pharynx is enclosed by muscle?
posterolateral portion
Origin of Stylopharyngeus muscle?
Styloid process of the temporal bone
What separates the nasal cavities from the nasopharynx?
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The Choanae (Pair of postrior apertures of the nasal cavity)
What separates the nasopharynx from the oropharynx?
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The soft palate
What separates the nasopharynx from the laryngeal pharynx?
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The epiglottis
What is the inferior limit of the laryngeal pharynx?
The esophagus
What is the significance of the median cricothyroid ligament?
It is the entrance point for an emergency airway procedure
What are Fauces?
Irregular space bounded by the anterior tonsilar pillars, the posterior tonsillar pillars, and the uvula.
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What is a pharyngeal arch?
An arch formed by the union of two anterior tonsilar pillars or the union of two posterior tonsilar pillars Bounded by the arches
Vagus Nerve innervates all palatal muscles, except
tensor veli palatini muscle that is innervated by the trigeminal nerve (V).
How is the Submental triangle unique to the other triangles?
The only unpaired
What is the difference between superficial fascia and the deep fascia?
The superficial layer is the loose connective layer that is located deep to the skin. The deep fascia covers the surface of the skeletal muscles.
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Infrahyoid Muscles function?
lower the the hyoid bone during speaking and swallowing
What separates the carotid triangle from the muscular triangle
Superior belly of the omohyoid muscle
What cervical compartment is formed by the carotid sheath?
The neurovascular compartment
The neck is divided into compartments. Surrounded by a musculofascial collar. What is found in the vertebral compartment?
Visceral compartment?
Neurovascular compartment?
Muscular compartment?
Vertebral compartment contains the muscles of the vertebral column.
Visceral compartment contains the Pharynx, larynx, esophagus, trachea, and glands.
Neurovascular compartment contains blood vessels and nerves.
Muscular compartment contains muscles.
Sternocleidomastoid muscle divides neck:
Anterior cervical triangle
Posterior cervical triangle
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What is the posterior cervicle triangle?
It is the space between the muscles and the clavicle.
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The anterior scalene muscle is considered a ______ muscle.
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A Landmark muscle.
The subclavian vein lies anterior to the muscle and the subclavian artery lies posterior to the muscle along with the subclavian artery. The subclavian artery and brachial plexus separates the anterior and middle scalene muscles.
Which triangle is the ONLY unpaired triangle of the neck?
The submental triangle is the only unpaired triangle of the neck.
Where are the palantine tonsils located?
Palantine tonsils are located in the tonsillar bed on the lateral walls between the anterior and posterior fold.
What is the isthmus of fauces?
It is the entrance into the fauces or throat formed by the anterior tonsillar arch (pillars).
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What is the significance of the piriform recess?
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Ingested objects can become trapped or lodged in the recess.
What is the significance of the median cricothyroid ligament?
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It is the entrance point for an emergency airway procedure
What is the difference between a cricothrotomy and a tracheotomy?
Cricothrotomy is the incision of the skin and the median cricothyroid ligament for emergency entrance into the airway. Tracheotomy is the incision of the skin and membrane separating the cartilages of the trachea for emergency entrance into the airway.
What is the rima glottidis?
small-slit opening between the vocal folds.
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Vocal ligaments vs. vestibular folds?
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The vocal ligaments produce sound, while closure of the vestibular folds prevents the movement of air into and out of the larynx.
Closure of the vestibular folds increase abdominal pressure for exercise and excretory functions.