Digestive system: Swallowing

Question 1

three parts of pharynx:.

Answer 1

the nasopharynx, oropharynx, and laryngopharynx

Question 2

(TRUE OR FALSE) only the oropharynx and laryngopharynx transmit food.

Answer 2

true

Question 3

communicates with the nasopharynx superiorly, with the larynx and laryngopharynx

Answer 3

oropharynx

Question 4

extends from the oropharynx to the esophagus and is posterior to the larynx.

Answer 4

laryngopharynx

Question 5

which are arranged like three stacked flowerpots, one inside the other.

Answer 5

pharyngeal constrictors

Question 6

is the part of the digestive tract that extends between the pharynx and the stomach. It is about 25 cm long and lies in the mediastinum, anterior to the vertebrae and posterior to the trachea.

Answer 6

esophagus

Question 7

Swallowing, or deglutition, is divided into three phases:

Answer 7

voluntary, pharyngeal, and esophageal.

Question 8

During the__________ a bolus of food is formed in the mouth and pushed by the tongue against the hard palate, until it is forced toward the posterior part of the mouth and into the oropharynx.

Answer 8

voluntary phase

Question 9

is a reflex initiated by the stimulation of tactile receptors in the area of the oropharynx.

Answer 9

pharyngeal phase

Question 10

(TRUE OR FALSE)

Afferent action potentials travel through the trigeminal (V) and glossopharyngeal (IX) nerves to the swallowing center in the medulla oblongata.

Answer 10

TRUE

Question 11

is tipped posteriorly, so that the epiglottic cartilage covers the opening into the larynx, and the larynx is elevated.

Answer 11

epiglottis

Question 12

swallowing phase which takes about 5-8 seconds, is responsible for moving food from the pharynx to the stomach.

Answer 12

esophageal phase