Pharynx and oesophagus (swallowing)

Question 1

What is formed during chewing?

Answer 1

A bolus

Question 2

What action moves the bolus from mouth to oesophagus?

Answer 2

Swallowing

Question 3

Is the initiation of swallowing voluntary?

Answer 3

Yes

Question 4

Muscles of what push the bolus posteriorly?

Answer 4

The tongue

Question 5

Which pharynx does the oral cavity open into?

Answer 5

Oropharynx

Question 6

What triggers the swallow reflex?

Answer 6

The food bolus touching the back of the pharynx

Question 7

What blocks off the nasopharynx?

Answer 7

the soft palate

Question 8

what blocks off the trachea?

Answer 8

Epiglottis

Question 9

Suprahyoid muscles close off the

Answer 9

larynx

Question 10

What pushes the food down the pharynx and into the oesophagus?

Answer 10

The pharyngeal constrictors contracting

Question 11

At what level does the oesophagus pass through the diaphragm?

Answer 11

T10

Question 12

What is the sphincter between the oesophagus and the stomach?

Answer 12

the lower oesophageal sphincter

Question 13

what tone does the LOS have?

Answer 13

high tone. has a degree of sustained contraction

Question 14

What angle does the oesophagus enter the stomach at?

Answer 14

An acute angle

Question 15

What is the oesophagus lined with?

Answer 15

Squamous epithelium

Question 16

What is a hiatus hernia and GOR?

Answer 16

upper part of stomach squeezes through the gap between the oesophagus and diaphragm