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V.ANAT 121 > Digestive System I > Flashcards

Digestive System I Flashcards

1
Q

The small intestines are next to the ____ and the ___of the dog.

A

kidney
liver

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2
Q

First part of the digestive system

A

mouth

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3
Q

Bounded laterally & rostrally by the cheeks and teeth; dorsally by the hard palate; ventrally by the mandible and tongue and caudally by the soft palate

A

mouth

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4
Q

Oral cavity (2)

A

 Vestibule
 Oral cavity proper

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5
Q

Has vibrissae (tactile hairs) on both lips

A

lips

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6
Q

Upper lip is called

A

philtrum (deep straight narrow
cleft)

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7
Q

Lower lip is called

A

chin or mentum (rounded
prominence)

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8
Q

Small in dogs because of the lateral walls of the vestibule

A

cheeks

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9
Q

Both lips and cheeks consist of 3 layers which are

A

– External – hairy integument
– Middle- muscles
– Inner - mucosa

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10
Q

Separates the respiratory and digestive passages

A

palate

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11
Q

Hard palate is

A

rostral

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12
Q

Soft palate is

A

caudal

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13
Q
  • Weapon of offense and defense
  • For procurement of food
  • For cutting and crushing of food
A

teeth

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14
Q

*Sectorial/Sheering Teeth

largest cheek tooth in maxilla

A

4th premolar-

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15
Q

*Sectorial/Sheering Teeth

largest cheek tooth in mandible

A

1st molar

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16
Q

Sectorial/Sheering Teeth also called

A

Carnassial teeth

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17
Q

Dentition is complete by ___ months

A

6-7

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18
Q

*Parts of the Tooth

hardest subs in the body; can’t regenerate

A

Enamel

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19
Q

*Parts of the Tooth

also called “ivory”, forms the bulk of the tooth

A

Dentin

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20
Q

*Parts of the Tooth

the only soft tissue in the tooth

A

Pulp

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21
Q

*Parts of the Tooth

thin covering found only on the roots

A

Cementum

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22
Q

Parts of the Tooth (3)

A

Crown
Neck
Root

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23
Q

*Surfaces of the Teeth

outer surface

A

Vestibular surface

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24
Q

*Surfaces of the Teeth

inner surface

A

Lingual surface

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25
Q

*Surfaces of the Teeth

sides that lie in contact with an adjacent tooth

A

Contact surfaces

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26
Q

*Surfaces of the Teeth

faces the opposite dental arch

A

Occlusal/masticating surfaces

27
Q

*Types of Dentition

all teeth are similar (eg crocodile)

A

Homodont

28
Q

*Types of Dentition

teeth have undergone differentiation into molars, premolars, incisors, etc

A

Heterodont

29
Q

*Types of Dentition

similar primitive cones come together to form one tooth (eg cheek teeth of pig)

A

Bunodont

30
Q

*Types of Dentition

ridges become sharp

A

Selenodont

31
Q

*Types of Dentition

cones become ridges as in the cheek teeth of horse

A

Lophodont

32
Q

*Types of Dentition

enamel of tooth is restricted to the crown

A

Brachydont

33
Q

*Types of Dentition

much of the crown is embedded in the gum as in the cheek teeth of horse

A

Hypsodont

34
Q

Breeds with pigmented oral mucosa have pigmented ____ TOO because it is continuous with the mucosa of the oral vestibule and with the oral cavity proper or of the hard palate

A

Gums

35
Q

Parts of the tongue

A
  • Parts
    – Root
    – Body
    – Apex
    Lingual frenulum
36
Q

Function of a dog’s mouth (8)

A
  • Intake of solid and liquid food
  • Tactile organ
  • Bearer of the organs of taste
  • For grasping, sorting and tasting of food
  • Aids in swallowing / deglutition
  • Used for self-grooming
  • Stimulate their young to defecate and urinate
  • Panting or heat loss
37
Q

*Function of lingual papillae

mechanical and tactile

A

Filiform

38
Q

*Function of lingual papillae

gustatory (3)

A
  • Fungiform
  • Vallate
  • Foliate
39
Q

*Function of lingual papillae

mechanical

A

Conical
Marginal

40
Q

Taste buds are located in the

A

gustatory papillae

41
Q

*Extrinsic Muscles of the tongue

Its origin is at the hyoid apparatus (stylohyoid) and it retracts and elevates the tongue.

A

Styloglossus

42
Q

*Extrinsic Muscles of the tongue

-The origin is at the incisive part of the mandible. It protrudes and depressed the tongue.

A

Genioglossus

43
Q

*Extrinsic Muscles of the tongue

The origin is at the hyoid apparatus (basihyoid). It retracts and depresses the tongue.

A

Hyoglossus

44
Q

*Extrinsic Muscles of the tongue

It originates at the incisive part of the mandible and the insertion site is the body of the hyoid. It lies below the tongue (not within it) and draws the hyoid and therefore the tongue forward.

A

Geniohyoideus

45
Q

Extrinsic Muscles of the tongue (4)

A

Styloglossus
Genioglossus
Hyoglossus
Geniohyoideus

46
Q

Instrinsic Muscle of the tongue

A

Lingua propria

47
Q
  • Lies on the median plane of the ventral tip of the tongue
  • Easily recognized by palpation
A

Lyssa

48
Q

*Nerves and Vessels

Nerve supply comes from the ______ ___,
_____ ______, ____________, and
_____ ____.

blood supply
comes from the ___ and ______ _____

A

nerve supply;
lingual nerve
chorda tympani
glossopharyngeal
hypoglossal nerve

blood supply;
lingual
sublingual arteries

49
Q

*Salivary Glands of Dogs

largest

A

Parotid

50
Q

*Salivary Glands of Dogs

smallest

A

Sublingual

51
Q

*Salivary Glands of Dogs

found only in dogs and cats

A

Zygomatic

52
Q

Salivary Glands of Dogs (4)

A
  • Parotid
  • Mandibular
  • Sublingual
  • Zygomatic
53
Q

 Common opening of the digestive and respiratory tracts
 directs air and food properly to avoid choking the passage of food through this space

A

Pharynx

54
Q

*Openings of the Pharynx

directed to the esophagus

A

Isthmus esophagi

55
Q

*Openings of the Pharynx

directed to the larynx

A

Isthmus laryngis

56
Q

*Openings of the Pharynx

directed to the oral cavity

A

Isthmus fauciumn

57
Q

*Openings of the Pharynx

how many openings directed to the eustachian tube

A

2

58
Q

*Openings of the Pharynx

how many openings directed to the posterior nares

A

2

59
Q

3 Parts of the pharynx

A

 Oral (oropharynx)
 Nasal (nasopharynx)
 Laryngeal (laryngopharynx)

60
Q

*3 Parts of the pharynx

Extends from the level of the palatoglossal archesto the caudal border of the soft palate and the base of the epiglottis at the caudal end of the root of the tongue

A

Oral (oropharynx)

61
Q

*3 Parts of the pharynx

Extends from the choanae to the junction of the palatopharyngeal arches at the caudal border of the soft palate

A

Nasal (nasopharynx)

62
Q

*3 Parts of the pharynx

Dorsal to the larynx; extends from the palatopharyngeal arches to the beginning of the esophagus

A

Laryngeal (laryngopharynx)

63
Q
  • First part of alimentary canal
  • Connects the pharynx and the stomach
  • Ends in the cardiac portion of the stomach
  • Passes through the esophageal hiatus of the diaphragm
A

Esophagus / Gullet

64
Q
  • ridge of mucosa which is an internal demarcation between laryngopharynx and esophagus
A

Pharyngoesophageal limen

V.ANAT 121 (35 decks)

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