L4 Anatomy of Ingestion

Question 1

Bones forming the Hard Palate?

Answer 1

The hard palate is formed by:

Maxillary bones: incisive bone and palatine processes (ANTERIORLY)

Palatine bones: horizontal processes (POSTERIOR)

Question 2

Soft Palate is made of up muscles connected to ________.

It is connected to the hard palate by _____________.

Answer 2

Soft Palate is made of up muscles connected to mucous membrane.

It is connected to the hard palate by aponeurosis

Question 3

Where does the soft palate join the Toungue and Pharynx?

Answer 3

palatal arches: helps form palatoglossal and nasopharyngeal seals

Question 4

_________ tenses Soft Palate

Answer 4

Tensor velipalatini tenses SP

Question 5

________ elevates Soft Palate

Answer 5

Levatorvelipalatini elevates SP

Question 6

_______ elevates tongue & draws SP to tongue

Answer 6

Palatoglossus elevates tongue & draws SP to tongue

Question 7

__________ pulls walls of pharyx against Soft Palate

Answer 7

Palatopharyngeus pulls walls of pharyx against SP

Question 8

___________ shortens & broadens uvula

Answer 8

Musculus uvulae shortens & broadens uvula

Question 9

Answer 9

• Tensor velipalatini tenses SP
• Levatorvelipalatini elevates SP
• Palatoglossus elevates tongue & draws SP to the tongue
• Palatopharyngeuspulls walls of pharyxagainst SP
• Musculus uvulae shortens & broadens uvula

Question 10

Answer 10

Question 11

Largest Salivary Gland?

Its secretion composition?

Answer 11

Parotid Gland

Mostly serous secretions (serous acini)

Question 12

Parotid Gland Location?

Answer 12

Parotid Gland Location

• Inferior to external auditory meatus (EAM)
• Anterior to sternocleidomastoid muscle (SCM)
• Posterior to ramus of mandible

Question 13

Autonomic Wiring of the Partotid Gland?

Answer 13

Glossopharyngeal Nerve Synapses on Otic Ganglia

Question 14

What is Frey’s syndrome?

Answer 14

Damage to Parasympathetic nerves of the pharynx

Nerve regrowth synapses onto sweat glands => parasympathetic signaling for stimulation of salivary production leads to Gustatory sweating

Question 15

The Parotid Duct is superficial to the _______ and can be palpated, turns medially and passes through the ______ muscle.

Answer 15

The Parotid Duct is superficial to the masseter and can be palpated, turns medially and passes through the buccinator muscle.

Question 16

Salivary gland with mixed serous and mucous secretions?

Answer 16

Submandibular Gland: Superficial (larger)and deep lobes

Question 17

Answer 17

Opening of Submandibular Duct

Question 18

Salivary glad with Higher mucin content in secretions?

Answer 18

Sublingual Glands

• 18-20 glands
• Most drain via sublingual fold openings

Question 19

Answer 19

Question 20

Nasopharyx communicates with nose via ______

Answer 20

Nasopharyx communicates with nose via choanae

Question 21

________ areas associated with Otitis Media

Answer 21

Pharyngeal (adenoids) and tubal tonsils

Question 22

_________________ muscle opens Eustachian tube during swallowing

Answer 22

Salpingopharyngeus muscle opens Eustachian tube during swallowing

Question 23

What holds a bolus in the mouth during chewing?

Answer 23

Glossopalatal Seal

Question 24

Pharyngeal Muscles: Circular vs. Longitudinal

Answer 24

Question 25

Innervation of Pharyngeal Muscles?

Motor vs. Sensory?

Answer 25

MOTOR

Pharyngeal Branch of the Vagus nerve (CN X) for Superior, Middle, Inferior Constrictors, Salpingopharyngeus, and Palatopharyngeus

Glossopharyngeal Nerve (CN IX) for Stylopharyngeus

SENSORY

Glossopharyngeal for all

Question 26

Answer 26

Question 27

Muscles involved in Palatoglossal Seal facilitated by ______ and ______Nerves

Answer 27

Muscles involved in Palatoglossal Seal facilitated by Hypoglossal (XII) and Vagus (X) Nerves