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Pharynx
Medical School Gross Anatomy
42
Anatomy
Graduate
09/30/2011

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Cards

Term
What muscles are compose the prevertebral region?
Definition
Longus Capitus, Longus Colli, Middle/Anterior/Posterior Scalene
Term
What is the function of the Longus Capitus?
Definition
Function: Flex the head

Ennervation: Ventral rami of cervical spinal nerves
Term
What is the function of the Longus Colli?
Definition
Function: Flex cervical region of the vertebral column

Ennervation: Ventral Rami of Cervical Spinal Nerve
Term
What are the layers of the pharyngeal wall?
Definition
1. Mucous Membrane
2. Submucosa
3. Pharyngobasilar facia
4. Muscular layer
5. Buccopharyngeal (pretracheal) fascia
Term
What muscles compose the muscular layer?
Definition
inner longitudinal, outer circular muscles
Term
What is the mucous membrane composed of?
Definition
Epithelial cells
Term
Where is the danger zone?
Definition
Between Alar and Prevertebral Fascia
Term
What are the two layers of the pretracheal fascia?
Definition
Alar and Buccopharyngeal Fascia
Term
Where is the Retropharyngeal space?
Definition
Between Buccopharyngeal and Alar fascia
Term
What are the Outer Circular muscles? What is the function of the outer circular muscles?
Definition
Superior, Middle, and Inferior Constrictor

function: constrict
Term
What are the Inner Longitudinal muscles? What is the function of the inner longitudinal muscles?
Definition
Stylopharyngeus
Salpingopharyngeus
Palatopharyngeus

Elevate the thyroid cartilage
Term
What is the ennervation of the outer cicular muscles?
Definition
Pharyngeal branch and external laryngeal branch of vagus nerve
Term
What is the enervation of the superior constrictor?
Definition
Pharyngeal plexus from Vagus nerve
Term
What is the enervation of the middle constrictor?
Definition
Pharyngeal plexus of vagus nerve
Term
What are the two division of the inferior constrictor?
Definition
Thyropharyngeus and Cricopharyngeus
Term
What is the enervation of the thyropharyngeus?
Definition
Pharyngeal branch of Vagus nerve
Term
What is the enervation of the cricopharyngeus?
Definition
The external laryngeal nerve
Term
[image]
Identify the structures
Definition
1. Styloid Process
2. Superior Constrictor
3. Stylopharyngeus
4. Middle Constrictor
5. Inferior Constrictor
6. Cricoid Cartilage
7. Thyroid Cartilage
8. Hyoid bone
9. Pterygomandibular Raphe
Term
What is the pharyngobasilar fascia?
Definition
The buccopharyngeal fascia above and visible to the superior constrictor
Term
What does the superior laryngeal nerve split into?
Definition
Internal and external laryngeal nerve
Term
What type of enervation is carried by the internal laryngeal nerve?
Definition
Sensory enervation
Term
What enervates the Carotid body and sinus?
Definition
Glossopharyngeal nerve
Term
What is the Pharyngeal plexus made up of?
Definition
Sensory branches from Glossopharyngeal and motor from the Vagus
Term
What is the sensory enervation to the Nasopharynx?
Definition
Maxillary Nerve
Term
What is the sensory enervation of the Oropharynx?
Definition
Glossopharyngeal
Term
What is the sensory enervation to the laryngopharynx?
Definition
Vagus
Term
[image]
Identify the muscles
Definition
Green:
1: Salpingopharyngeus
2: Palatopharyngeus

Black:
1: Levator veli palatini
2: Muscularis uvulae
3: Tensor veli palatini
Term
What is the enervation of the Tensor veli palatini?
Definition
Mandibular nerve
Term
What is the enervation of the Levator veli palatini?
Definition
Vagus
Term
What is the enervation of the muscularis uvulae?
Definition
vagus
Term
What is the enervation of the salpingopharyngeus?
Definition
Vagus
Term
What is the enervation of the Palatopharyngeus?
Definition
Vagus
Term
What is the only muscle of the soft palate not enervated by the Vagus?
Definition
Tensor Veli Palatini
Term
What muscles sandwich the palatine tonsils?
Definition
Palatopharyngeus and Palatoglossus
Term
What is the enervation of the palatopharyngeus?
Definition
Vagus
Term
What is the enervation of the Palatoglossus?
Definition
Vagus
Term
What enervation is involved in the gag reflex?
Definition
Afferent: Glossopharyngeal
Efferent: Vagus
Term
What is Waldyers Ring?
Definition
Ring of tonsilar tissue:
Lingual tonsils
Palatine Tonsils
Pharyngeal tonsils
Term
Where does Waldyer's ring drain to?
Definition
Drainage to superior group of deep cervical nodes
Term
What does the Piriform recess contain?
Definition
superior laryngeal artery and internal laryngeal nerve
Term
Where is the piriform recess located?
Definition
space behind the thyrohyoid membrane
Term
How is food prevented from entering the nasopharynx?
Definition
Elevation of the soft palate
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