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Anatomy > Dog Head Lecture > Flashcards

Dog Head Lecture Flashcards

1
Q

How many pairs of CN are there?

A

12

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2
Q

What are the muscles of mastication?

A

Temporalis m

Masseter m

Digastricus m

Medial and lateral pterygoid
m

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3
Q

What is the only muscle that opens the jaw

A

Digastricus

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4
Q

What is the center of rotation for muscles of mastication?

A

Temporomandibular joint (condylar process)

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5
Q

Do muscles of mastication produce action when they are shortened or lengthened?

A

Shortened

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6
Q

What are the muscles of mastication innervated by>

A

Trigeminal nerve (CN V)

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7
Q

What part of the digastricus is innervated by the trigeminal n?

A

Rostral pt

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8
Q

What innervates the caudal part of the digastricus?

A

Facial n (CN VII)

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9
Q

What are the superficial muscles of facial expression?

A

Orbicularis oculi m

Levator nasolabialis m

Orbicularis oris m

Zygomasticus m

Platysma

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10
Q

What are superficial facial expression muscles innervated by?

A

Facial nerve (CN VII)

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11
Q

What are 2 salivary glands that open into vestibule of the mouth?

A

Zygomatic salivary gland (1st PM)

Parotid salivary gland (4th PM)

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12
Q

What are 2 salivary glands that meet at the sublingual caruncle?

A

Sublingual SG (polystomotic part)

Mandibular SG

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13
Q

What are the openings called of the vestibule of the mouth and sublingual caruncle

A

Vestibule of mouth

  • Orifice of major zygomatic duct
  • Orifice of parotid duct

Sublingual caruncle

  • Orifice of mandibular duct
  • Orifice of sublingual duct
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14
Q

What does the pharynx do?

A

Connect nasal caivty with the larynx and the oral cavity with the esophagus

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15
Q

Trace passage of air when inhaled

A 
Nasal cavity
Through choana
Nasopharynx
Larynx
Trachea
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16
Q

Trace passage of food when ingested

A 
Over tongue
Oral cavity
Through palatoglossal arches
Oropharynx
Laryngopharynx
Through pharyngoesophageal limen
Esophagus
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17
Q

What makes up the “upper esophageal sphincter” and are considered pharyngeal muscles

A

Hyopharyngeus

Thyropharyngeus

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18
Q

Where is the pharyngeal opening of the auditory tube?

A

Nasopharynx

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19
Q

What are the 3 fxns of the larynx in order of importance

A

Protect the lower airway by preventing inspiration of foreign material

Permits abdominal press (how we poop, cough, give birth)

Vocalization

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20
Q

What are the types of cartilages found in larynx and which has 2?

A

Epiglottic cartilage

Thyroid cartilage

Arytenoid cartilage (TWO)

Cricoid cartilage “class ring”

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21
Q

What is dorsally attached to arytenoid cartilages?

A

Vocal folds

22
Q

What does the Glottis consist of?

A

Both arytenoid cartilages

Both vocal folds

Rima glottidis (space btw vocal folds and arytenoid cartilages)

23
Q

Vocal apparatus AKA

A

Glottis

24
Q

What are the intrinsic laryngeal muscles

A

Thyropharyngeus

Sternothyroideus

Cricothyroideus

Thyrohyoideus

25
Q

What innervates the pharyngeal muscles?

A

Vagus n (CN X)

Glossopharyngeal (CN XI) n

26
Q

What innervates the intrinsic laryngeal muscles and what is the exception

A

Recurrent laryngeal

Exception: cricothyroideus m which is innervated by cranial laryngeal n both both arise from CN X

27
Q

T/F Tears come out of the ventral opening of the alar fold

A

T

28
Q

What are important paranasal sinuses

A

Frontal sinus

Maxillary sinus

29
Q

What is the average age a dogs permanent teeth errupted by?

A

6 mo

30
Q

What helps puppy grasp nipple to nurse on tongue?

A

Marginal papillae

31
Q

What are the lymph nodes in the head

A

Facial LN

Mandibular LN

Parotid LN

Medial retropharyngeal LN

32
Q

Entropion

A

Inward turning of the margins of upper/or lower lids

33
Q

Ectropion

A

Flaccid outward sagging of the palpebrae

34
Q

Glaucoma

A

Increase in intraocular pressure with subsequent opacity of the cornea and/or lens

35
Q

Conjunctivitis

A

Inflammation of the palpebral and bulbar conjunctiva

36
Q

Keratoconjunctivitis sica

A

Insufficiency of tears with subsequen drying of the conjunctiva and cornea

37
Q

Coreanl abrasion

A

The cornea is scratched, torn, or ulcerated

38
Q

Inflammation of superficial gland of 3rd eyelid

A

Inflammation or hypertrophy of lymphofollicular tissue on the deep surface of the third eyelid and prolapse of the gland

39
Q

Cataract

A

Opacity of the lens

40
Q

Cleft palate

A

May involve the hard platate, soft palate or both

41
Q

Sialoadentitis

A

inflammation of salivary glands

42
Q

Sialoliths

A

Stone formation in the salivary ducts or glands

43
Q

Salivary mucocele

A

Dilation of salivary duct

44
Q

Ranula

A

Dilation specific to the duct of the sublingual salivary gland

45
Q

Aural hematoma

A

Swelling of the pinna resulting from rupture of blood vesels

46
Q

Otitis media

A

Inflammation of middle ear

47
Q

Otitis externa

A

Inflammation of external ear

48
Q

Otitis interna

A

Inflammation of inner ear

49
Q

Tonsillitis

A

Any oral infection

50
Q

Masticatory (eosinophilic myositis)

A

Stiffening of masseter muscle due to Chlostridium tetani

Autoimmune disease

51
Q

Epiphora

A

Defectice nasolacrimal drainage resulting in tears spilling down across the face

Anatomy (22 decks)

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