Large Animal - Attachmnts/Contacts/Artiulations on the Skull

Question 1

Temporal fossa

Answer 1

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

Question 2

Zygomatic arch

Answer 2

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

Question 3

Occipital condyle

Answer 3

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

Question 4

Paracondylar (jugular) process

Answer 4

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

Question 5

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

Answer 5

Caudal border of the ramus of the mandible

Question 6

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

Answer 6

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

Question 7

Muscular tubercle

Answer 7

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**

Question 8

External occipital protuberance

Answer 8

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

Question 9

Hypophyseal fossa

Answer 9

Hypophysis (= pituatary gland)

Question 10

The sella turcica consists of what two things?

Answer 10

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

Question 11

Carotid sulcus (eq)

Answer 11

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

Question 12

Chiasmatic sulcus

Answer 12

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

Question 13

Hamulus of the pterygoid bone

Answer 13

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**

Question 14

Mastoid process

Answer 14

Cleidomastoideus M. Sternomastoideus M. (bo)

Question 15

The difference in the mastoid process between horses and ox?

Answer 15

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

Question 16

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

Answer 16

petrous part of the temporal bone

Question 17

Petrosal Crest

Answer 17

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

Question 18

Muscular Process

Answer 18

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

Question 19

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

Answer 19

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

Question 20

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

Answer 20

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

Question 21

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

Answer 21

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

Question 22

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

Answer 22

Olfactory bulb

Question 23

Crista galli

Answer 23

Cranial attachment of the falx cerebri

Question 24

Crista galli is part of the ______.

Answer 24

Ethmoid bone

Question 25

Rostral lacrimal process

Answer 25

medial palpebral ligament

Question 26

What attaches to the medial palpebral ligament?

Answer 26

Orbicularis oculi M.

Question 27

What passes through the infratrochlear incisure?

Answer 27

Infratrochlear N.

Question 28

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

Answer 28

At the palpable infratrochlear incisure

Question 29

Facial Crest

Answer 29

Masseter M. via a strong tendon

Question 30

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

Answer 30

Buccal branches of the facial N.

Question 31

Masseteric fossa

Answer 31

Masseter M.

Question 32

Pterygoid fossa

Answer 32

medial pterygoid M.

Question 33

Mylohyoid sulcus is created by the \_\_\_\_\_\_\_.

Answer 33

mylohyoid N.

Question 34

The mylohyoid N. is motor to what two muscles?

Answer 34

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

Question 35

Coronoid process

Answer 35

Temporalis M.

Question 36

What passes through the mandibular incisure?

Answer 36

Masseteric N.

Question 37

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

Answer 37

1. masseter M. 2. masticatory N.

Question 38

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

Answer 38

The articular disc of the temporomanibular joint

Question 39

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

Answer 39

2 separate joint cavities

Question 40

Pterygoid fovea

Answer 40

Lateral pterygoid M.

Question 41

Angle of the stylohyoid bone

Answer 41

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

Question 42

What is the distal attachment of the stylohyoideus M.?

Answer 42

To the hyoid apparatus, primarily to the thyrohyoid bone.