Chapter 31

Question 1

What are the 3 components of the pharynx?

Answer 1

1. Nasal Pharynx
2. Oral Pharynx
3. Laryngeal Pharynx

Question 2

What is the Nasal Pharynx?

Answer 2

Posterior end of the nasal cavity

Question 3

What is the Oral Pharynx?

Answer 3

Back throat wall

Question 4

What is the Laryngeal Pharynx?

Answer 4

Below tongue where digestive/respiratory systems branch

Question 5

What are the Muscles of the soft palate?

Answer 5

1. Palatoglossal
2. Palatopharyngeal
3. Muscle of Uvula
4. Lavator Veli Palatini
5. Tensor Veli Palatini

Question 6

What does the Palatoglossal muscle do?

Answer 6

• Contraction pulls the sides of the tongue up and back, pulls soft palate down, and narrows space between R/L Faucial Pillars.
  -Vertical folds of tissue in front and back of tonsil: Palatoglossal folds
  Palatopharyngeal folds

Question 7

What does the Palatopharyngeal muscle do?

Answer 7

Contraction elevates pharynx

Question 8

What do the muscles of Uvula do?

Answer 8

Contraction shortens- broadens Uvula

Question 9

What do the levator Veli Palatini do?

Answer 9

Elevated posterior end of the soft palate

Question 10

What do the tensor Veli Palatini do?

Answer 10

Opens the auditory tube when closed.

Question 11

What are the muscles of the Pharynx that Constrict?

Answer 11

1. Superior Pharyngeal Constrictor
2. Middle Pharyngeal Constrictor
3. Inferior Pharyngeal Constrictor

Question 12

What are the 2 types of Pharynx muscles?

Answer 12

Constrictors and elevators/dilators

Question 13

What does the Superior Pharyngeal Constrictor do?

Answer 13

Contraction constricts upper pharynx and forces food or contents down pharynx.

Question 14

What does the Middle Pharyngeal Constrictor do?

Answer 14

Contraction constricts Pharyngeal opening and forces food toward esophagus.

Question 15

What do the Inferior Pharyngeal Constrictor do?

Answer 15

Contraction continues to force food down to esophagus and onto the stomach.

Question 16

Where do all 3 of the pharynx Constrictor muscles insert at?

Answer 16

Into a midline tendon in the posterior throat called the median raphe.

Question 17

Palatopharyngeal

Answer 17

Elevates Pharynx

Question 18

Stylopharyngeal

Answer 18

Contraction causes elevation of pharynx

Question 19

Salpingopharyngeal

Answer 19

From end of auditory tube in lateral wall of nasopharynx.

-contraction lifts the Pharyngeal wall.

Question 20

Bolus of food

Answer 20

Ball of food shaped by teeth, cheeks, and tongue.

Question 21

Peristaltic Contractions

Answer 21

Wavelike constrictions of the digestive tube.