Anatomy 1 and 2 - Taste, Chewing, Swallowing and Abdo Pain Flashcards Preview

1st Year - Gastroenterology > Anatomy 1 and 2 - Taste, Chewing, Swallowing and Abdo Pain > Flashcards

Flashcards in Anatomy 1 and 2 - Taste, Chewing, Swallowing and Abdo Pain Deck (100)
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1

Parts of the GI tract (11)

Oral cavityPharynxoesophagusstomachsmall intestinelarge intestine (including rectum and anal canal)accessory organs (tongue, salivary glands, pancreas, liver, and gallbladder)

2

What joint is involved in opening the mouth

The temperomandibular joint (TMJ)

3

3 pairs of jaws "closing" muscles names?

MasseterTemporalisMedial pterygoid

4

Where does the masseter stretch?

From angle of mandible to zygomatic arch

5

Where does the temporalis run?

From coronoid process of mandible to temporal fossa

6

Where does the Medial Pterygoid run?

From angle of mandible (medial side) to pterygoid plates of sphenoid bone

7

What is the 1 pair of jaw opening muscle and where does it run

lateral pterygoid Condyle of mandible to pterygoid plates of sphenoid bone

8

What supplies all the jaw muscles

Mandibular division of trigeminal nerve - CN V3

9

What cranial nerve number is the trigeminal nerve and what division is the mandibular division?

CN 53rd division

10

CN V3 course:CNS partIntracranial partBase of skull foramen partExtra-cranial part of course

PonsInferior to the edge of the tentorium cerebelli between the posterior and middle cranial fossaforamen oval of sphenoid boneFrom foramen oval towards structures they supply

11

What part of the mouth is particularly sensitive to touch

the posterior wall of the oropharynx

12

What is aspiration?

Inhalation of liquid or solid matter into the lungs (different from choking)

13

What are the arches of the soft palate made from?

Skeletal muscle covered in mucosa

14

Surface anatomy of the mouth (8)

Hard palateSoft palate (made up of arches)Upper dental archLower dental archPalatine tonsilstongueuvulagingivae

15

What 2 parts can the tongue be divided into and how much of each tongue is classed as what

Anterior 2/3rds (horizontal and in oral cavity)Posterior 1/3rd (vertical and not in oral cavity)

16

What supplies the:general sensory parts of the tongue?Special sensory areas of the tonguegeneral and sensory supply of posterior 3rd of tongue

CN V3 (3rd division of trigeminal nerve)CN VII (facial nerve)CN IX (glossopharyngeal)

17

What gives general sensation to the gingiva of oral cavity and palate (superior half)

CN V2

18

What gives general sensation to the gingiva of oral cavity and floor of mouth (inferior half)

CN V3

19

What is the gag reflex

A protective reflex that prevents foreign bodies from entering the pharynx or larynx

20

Sensory part of gag reflex

CN IX

21

Motor part of gag reflex

CNIX and CNX

22

What CN's does spraying a local anaesthetic block the sensory action potentials of

CN V2, CN V3, CN VII and CN IX

23

What does the gag reflex cause that helps close off the entry to the body

Constrict the pharynx

24

CN V2 course:CNS partIntracranial partBase of skull foramen partExtra-cranial part of course

PonsInferior to the edge of the tentorium cerebella between the posterior and middle cranial fossaeFormane rotundum in sphenoid boneFrom foramen rotunda towards structures they supply

25

CN VII course (special sensory, sensory, motor and parasympathetic):CNS partIntracranial partBase of skull foramen partExtra-cranial part of course

junction between the pons and medulla Directly into internal acoustic meatus in the posterior cranial fossaPasses through the temporal bone through the internal acoustic meatus and stylomastoid foramenmost fibres pass through he stylomastoid foramen

26

What branch of CN VII connects to the lingual nerve branch of CN V3?

The chorda tympani

27

What does the chorda tympani contain?

Taste axons for the anterior 2/3rds of the tongueParasypathetic axons for salivary glands

28

where does the chorda tympani branch off of CN VII

At the stylomastoid foramen

29

CN IX course (special sensory, sensory, motor, visceral afferent and parasympathetic):CNS partIntracranial partBase of skull foramen partExtra-cranial part of course

MedullaDirectly towards jugular foramen in the posterior cranial fossa Jugular foramen at the junction between the temporal bone and occipital bone Axons mainly pass to or from the tongue and palateposterior wall of oropharynxparasympathetic secretomotor to parotid salivary glands

30

3 pairs of salivary glands

ParotidSubmandibularSublingual

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