Large Animal - Attachmnts/Contacts/Artiulations on the Skull Flashcards

1
Q

Temporal fossa

A

Temporalis M. -The other attachment of the temporalis M. is the coronoid process of the ramus of the mandible

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2
Q

Zygomatic arch

A

Masseter M., Zygomaticoscutularis M., Zygomaticoauricularis M. -The zygomatic arch consists of the zygomatic process of the squamous part of the temporal bone and the temporal part of the zygomatic bon

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3
Q

Occipital condyle

A

Articulates with the cranial articular fovea of the atlas -The atlantooccipital joint is a synovial joint

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4
Q

Paracondylar (jugular) process

A
  1. Caudal belly of digastricus M., including occiptomandibular part (eq) 2. Rectus capitis lateralis M. 3. Occipithyoideus M. 4. Obliquus capitis cranialis M.
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5
Q

Where is the other attachment of the occipitomandibular part of the caudal belly of the digastricus M. besides the paracondylar process?

A

Caudal border of the ramus of the mandible

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6
Q

Where does the rostral belly of the digastricus M. attach?

A

to the medial edge of the ventral border of the body of the mandible

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7
Q

Muscular tubercle

A
  1. Rectus capitis ventralis M. 2. Longus capitis M. 3. Cleidomastoideus M. (bo) 4. Sternomastoideus M. (bo) **muscular tubercles are located on the ventral surface of the skull at the junction of the occipital and basisphenoid bones**
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8
Q

External occipital protuberance

A

Funiculus nuchae of the nuchal ligament **the word “occipital” refers to occiput (= the back of the head)**

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9
Q

Hypophyseal fossa

A

Hypophysis (= pituatary gland)

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10
Q

The sella turcica consists of what two things?

A

The hypophyseal fossa and the slight ridge of bone which forms the edge of the fossa.

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11
Q

Carotid sulcus (eq)

A

Internal carotid A. **in the horse the internal carotid A. enters the cranial cavity by passing through the carotid incisure (notch) of the foramen lacerum

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12
Q

Chiasmatic sulcus

A

Optic chiasm **the chiasmatic sulcus is located in the presphenoid bone

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13
Q

Hamulus of the pterygoid bone

A

The tendon of the tensor veli palatini M. **the tendon of the tensor veli palatini M. turns medially around the hamulus to enter the soft palate**

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14
Q

Mastoid process

A

Cleidomastoideus M. Sternomastoideus M. (bo)

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15
Q

The difference in the mastoid process between horses and ox?

A

Horse - mastoid process is distinct, rounded projection Ox - consists of an elongated ridge of bone

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16
Q

Both the mastoid process and the styoid process are parts of the _______.

A

petrous part of the temporal bone

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17
Q

Petrosal Crest

A
  • Tentorium cerebelli membranaceum
    • The tentorium cerebelli membranaceum, and the tentorium cerebelli osseum in the horse, separate the cerebellum from the cerebral hemispheres
18
Q

Muscular Process

A
  • Tensor veli palatini M.
  • Levator veli palitini M.
19
Q

The muscuar process is a projection of the ________ and is not synonymous with ________.

A
  1. Tympanic part of the temporal bone
  2. Muscular tubercle
20
Q

Tympanic Bulla encloses the ______ and is part of the ______.

A
  • Tympanic bulla encloses the tympanic cavity (= the cavity of the middle ear)
  • Tympanic bulla is part of the tympanic part of the temporal bone
21
Q

Lamina cribrosa is perforated by the ________ which collectively form the ________.

A
  1. fila olfactoria
  2. olfactory N. (= CN I)
22
Q

The axons which form the fila olfactoria synapse in the _______ of the brain.

A

Olfactory bulb

23
Q

Crista galli

A

Cranial attachment of the falx cerebri

24
Q

Crista galli is part of the ______.

A

Ethmoid bone

25
Q

Rostral lacrimal process

A

medial palpebral ligament

26
Q

What attaches to the medial palpebral ligament?

A

Orbicularis oculi M.

27
Q

What passes through the infratrochlear incisure?

A

Infratrochlear N.

28
Q

Where can the infratrochlear N., purel sensory, be blocked?

A

At the palpable infratrochlear incisure

29
Q

Facial Crest

A

Masseter M. via a strong tendon

30
Q

_________ course rotrally on the superficial surface of the masseter M. and can be injured at this location, resulting in facial paralysis.

A

Buccal branches of the facial N.

31
Q

Masseteric fossa

A

Masseter M.

32
Q

Pterygoid fossa

A

medial pterygoid M.

33
Q

Mylohyoid sulcus is created by the _______.

A

mylohyoid N.

34
Q

The mylohyoid N. is motor to what two muscles?

A
  • Mylohyoideus M.
  • Rostral belly of the digastricus M.
35
Q

Coronoid process

A

Temporalis M.

36
Q

What passes through the mandibular incisure?

A

Masseteric N.

37
Q

The masseteric N., motor to the ________, is a branch of _________ nerve.

A
  1. masseter M.
  2. masticatory N.
38
Q

Head of the condylar process of the mandible articulates with what?

A

The articular disc of the temporomanibular joint

39
Q

The articular disc divides the temporoandibular joint into how many joint cavities?

A

2 separate joint cavities

40
Q

Pterygoid fovea

A

Lateral pterygoid M.

41
Q

Angle of the stylohyoid bone

A
  • Stylohyoideus M. (proximal attachment)
  • Occipitohyoidues M. (distal attachment)
42
Q

What is the distal attachment of the stylohyoideus M.?

A

To the hyoid apparatus, primarily to the thyrohyoid bone.