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Anatomy > Head, Pharynx, and Nasal Cavity > Flashcards

Head, Pharynx, and Nasal Cavity Flashcards

1
Q

What is the osseous nasal septum a part of in the horse?

A

Ethmoid bone

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2
Q

What is above the hard palate in the horse? Below?

A

Nasal cavity

Oral cavity

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3
Q

What do the mucous membranes on both sides of the turbinates do?

A

Increase the surface air for smelling and protection against particulates
Warms and moistens the air

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4
Q

What are the cavities that the turbinates are divided by?

A

Dorsal meatus
Middle meatus
Ventral meatus

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5
Q

Where would you want to pass a tube?

A

Through the ventral meatus

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6
Q

What is an area with no teeth called?

A

Interdental space

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7
Q

What is the maxillary sinus in a horse? What is this called in the dog?

A

The hollow space between the maxillary bones

Maxillary recess

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8
Q

What happens in the area of the soft palate?

A

There is an exchange between air and food

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9
Q

What is the area above the soft palate?

A

Nasopharynx

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10
Q

What is the area below the soft palate?

A

Oropharynx

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11
Q

What is the arytenoid cartilage?

A

Pair of cartilages that shut the larynx

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12
Q

What happens during the act of a swallow?

A

The nasopharynx constricts and the soft palate moves up

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13
Q

What kind of breathers are horses?

A

Obligate nasal breathers

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14
Q

Describe the flow of air

A 
Nasal cavity
Choanae
Nasopharynx
Palatopharyngeal arches
Larynx
Cricoid cartilage
Trachea
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15
Q

Describe the flow of food

A 
Oral cavity
Palatoglossal arches
Oropharynx
Laryngopharynx
Esophagus
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16
Q

What is the tube to the ear the connects with the nasopharynx?

A

Auditory tube

17
Q

What happens when the cricoarytenoideus dorsalis muscle contracts?

A

The arytenoids abduct the larynx

18
Q

What nerve innervates the cricoarytenoideus dorsalis muscle?

A

Vagus

19
Q

What would happen if the vagus nerve is paralyzed?

A

The animal would suffocate

20
Q

What happens if the orbiculus oculi is paralyzed?

A

It leads to no more blinking which causes the cornea to dry out

21
Q

What does CN 7 go from and to?

A

Internal acoustic meatus to stylomastoid foramen

22
Q

Where does the parotid salivary gland empty?

A

At the 4th premolar

23
Q

What can occur because the parotid salivary gland empties at the 4th premolar?

A

Tartar build up

24
Q

How does the monostomatic sublingual salivary gland empty its content?

A

By way of one opening under the tongue

25
Q

What does the temporalis muscle do?

A

Closes the jaw by hooking to the coronoid process of the ramus

26
Q

Where do the many openings of the zygomatic gland drain?

A

Caudal to the molars

Anatomy (19 decks)

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