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

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Flashcards in Large Animal - Attachmnts/Contacts/Artiulations on the Skull Deck (42):
1

Temporal fossa

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

2

Zygomatic arch

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

3

Occipital condyle

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

4

Paracondylar (jugular) process

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

5

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

Caudal border of the ramus of the mandible

6

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

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

7

Muscular tubercle

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**

8

External occipital protuberance

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

9

Hypophyseal fossa

Hypophysis (= pituatary gland)

10

The sella turcica consists of what two things?

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

11

Carotid sulcus (eq)

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

12

Chiasmatic sulcus

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

13

Hamulus of the pterygoid bone

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**

14

Mastoid process

Cleidomastoideus M. Sternomastoideus M. (bo)

15

The difference in the mastoid process between horses and ox?

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

16

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

petrous part of the temporal bone

17

Petrosal Crest

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

 

18

Muscular Process

  • Tensor veli palatini M.
  • Levator veli palitini M.

19

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

  1. Tympanic part of the temporal bone
  2. Muscular tubercle

20

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

  • 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

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

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

22

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

Olfactory bulb

23

Crista galli

Cranial attachment of the falx cerebri

24

Crista galli is part of the ______.

Ethmoid bone

25

Rostral lacrimal process

medial palpebral ligament

26

What attaches to the medial palpebral ligament?

Orbicularis oculi M. 

27

What passes through the infratrochlear incisure?

Infratrochlear N.

28

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

At the palpable infratrochlear incisure

29

Facial Crest

Masseter M. via a strong tendon

30

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

Buccal branches of the facial N.

31

Masseteric fossa

Masseter M.

32

Pterygoid fossa

medial pterygoid M.

33

Mylohyoid sulcus is created by the _______.

mylohyoid N.

34

The mylohyoid N. is motor to what two muscles?

  • Mylohyoideus M.
  • Rostral belly of the digastricus M.

35

Coronoid process

Temporalis M.

36

What passes through the mandibular incisure?

Masseteric N.

37

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

  1. masseter M.
  2. masticatory N.

38

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

The articular disc of the temporomanibular joint

39

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

2 separate joint cavities

40

Pterygoid fovea

Lateral pterygoid M.

41

Angle of the stylohyoid bone

  • Stylohyoideus M. (proximal attachment)
  • Occipitohyoidues M. (distal attachment)

42

What is the distal attachment of the stylohyoideus M.?

To the hyoid apparatus, primarily to the thyrohyoid bone.