Arthrology of the Anterior Thorax and The Head (The Skull and Cranial Fossae) Flashcards Preview

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Flashcards in Arthrology of the Anterior Thorax and The Head (The Skull and Cranial Fossae) Deck (43)
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1
Q

What is the joint classification of the costochondral joint?

A

Cartilagenous (amphiarthrosis) synchondrosis

2
Q

What ligaments are present at the first sternocostal or sternochondral joint?

A

No ligaments are present

3
Q

What is the classification of the second-seventh sternocostal or sternochondral joint?

A

Synovial plane (diarthrosis arthrodia)

4
Q

Which of the sternocostal or sternochondral ligaments is unique to the second sternocostal or sternochondral joint?

A

The intra-articular ligament

5
Q

What is the classification of the sixth through the ninth interchondral joints?

A

Synovial plane (diarthrosis arthrodia)

6
Q

What is the classification of the fifth-sixth or ninth-tenth interchondral joint?

A

Fibrous (amphiarthrosis) syndesmosis

7
Q

What is the appearance of the intersection of the coronal and sagittal sutures called?

A

The bregma

8
Q

What is the appearance of the intersection of the lambdoid and sagittal sutures called?

A

The lambda

9
Q

What is the diamond shaped remnant of developing membrane bone at the intersection of the frontal bone with both parietal bones?

A

The anterior fontanelle

10
Q

What is the diamond shaped remnant of developing membrane bone at the intersection of the occipital bone with both parietal bones?

A

The posterior fontanelle

11
Q

What is the glabella?

A

The elevation of bone over the frontal sinus between the orits

12
Q

What is the name given to the outline of the nasal cavity at the front of the skull?

A

Piriform aperture

13
Q

What is the name given to the alveolar jugum of the canine tooth in the maxilla?

A

Canine eminence

14
Q

What forms a bullet-like chin?

A

A large mental protuberance

15
Q

What forms an indented chin?

A

Well developed bilateral mental tubercles and a slight mental protuberance

16
Q

What is the tip of the external occipital protuberance called?

A

The inion

17
Q

What is the name of the linear elevation lateral to the external occipital protuberance?

A

Superior nuchal line

18
Q

What is the appearance of suture intersections just above the zygomatic arch called?

A

The pterion

19
Q

What is the appearance of suture intersections just above the mastoid process called?

A

The asterion

20
Q

What points on the skull are used to measure the skull size?

A

The nasion, vertex, inion, and gnathion

21
Q

What points on the skull are used to measure cranial vault capacity?

A

The nasion, vertex, and inion

22
Q

What is the appearance of the suture intersections over the hard palate called?

A

The cruciate or cruciform suture

23
Q

What is the posterior boundary of the anterior cranial fossa?

A

A line drawn along the lesser wing of the sphenoid, anterior clinoid processes, and sphenoidal jugum

24
Q

What passes through the cribriform plate?

A

Fila olfactoria of cranial nerve I, the olfactory nerve

25
Q

An emissary vein leaves the anterior cranial fossa via what opening?

A

Foramen cecum

26
Q

What is the posterior boundary of the middle cranial fossa?

A

Superior border of petrous part of temporal bone, posterior clinoid processes and dorsum sella of sphenoid bone

27
Q

What are the parts of the sella turcica?

A

Anterior clinoid processes, sphenoidal jugum, posterior clinoid processes, dorsum sella, and hypophysial fossa of sphenoid bone

28
Q

What forms the roof of the sella turcica?

A

Diaphragma sella

29
Q

What are the contents of the optic canal?

A

The optic nerve and ophthalmic artery

30
Q

What are the contents of the superior orbital fissure?

A

The ophthalmic veins, the oculomotor nerve, the trochlear nerve, the ophthalmic division of the trigeminal nerve, and the abducent nerve

31
Q

What is unique about the ophthalmic artery and veins?

A

Unlike other artery-vein combinations they will not share the same opening the ophthalmic artery is in the optic canal, ophthalmic veins are in the superior orbital fissure

32
Q

What are the contents of the foramen rotundum?

A

The maxillary division of the trigeminal nerve (cranial nerve Vb)

33
Q

What are the contents of the foramen ovale?

A

The mandibular division of the trigeminal nerve (Vc) and the lesser petrosal branch of the glossopharyngeal nerve

34
Q

What are the contents of the foramen spinosum?

A

The nervus spinosus from the mandibular division of the trigeminal nerve and the middle meningeal artery

35
Q

What forms the vidian nerve/nerve of the pterygoid canal?

A

The greater (superficial) petrosal nerve from the facial nerve and the deep petrosal nerve from the carotid sympathetic nerve plexus

36
Q

What are the contents of the hiatus for the lesser petrosal nerve?

A

The lesser petrosal nerve, a branch of the tympanic plexus from the glossopharyngeal nerve

37
Q

How will the lesser petrosal nerve typically exit the middle cranial fossa?

A

The foramen ovale

38
Q

What forms the roof of the posterior cranial fossa?

A

The tentorium cerebelli

39
Q

What part of the cerebrum occupies the posterior cranial fossa?

A

None; the tentorium cerebelli separates the cerebrum into a space above the posterior cranial fossa

40
Q

What are the contents of the internal acoustic meatus?

A

Cranial nerves VII (facial nerve) and VIII (vestibulocochlear/auditory nerve), the nervus intermedius/nerve of Wrisberg/sensory root of VII and the motor root of VII, the vestibular and cochlear roots of VIII, and the internal auditory/internal labyrinthine artery and vein

41
Q

What are the contents of the jugular foramen?

A

The jugular bulb, the inferior petrosal sinus, the tympanic body/tympanic glomus or jugular body/jugular glomus, cranial nerve IX (glossopharyngeal), X (vagus), and XI (spinal accessory)

42
Q

What is the name of the venous expansion between the sigmoid dural venous sinus and the internal jugular veins?

A

The jugular bulb

43
Q

What is the function of the tympanic body/tympanic glomus?

A

A chemoreceptive organ which monitors hypoxia, hypercapnia and increases in the hydrogen ion

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