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NLM2 Anatomy > Skull > Flashcards

Flashcards in Skull Deck (31)
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0
Q

What is contained within the Petrous part of the temporal bone?

A

The inner and middle ear

1
Q

What is the pterion?

A

H shaped area where frontal, parietal, greater wing of sphenoid and squamous part of temporal bones meet
Thin and can damage middle meningeal artery if hit

2
Q

Name the 4 parts of the temporal bone

A

Squamous part (w/zygomatic process)
Petrous part (w/mastoid process)
Tympanic part
Styloid process

3
Q

What is contained within the mastoid process?

A

Mastoid air cells that communicate with the middle ear (only develop in 3rd year of life)

4
Q

Where is the pituitary gland located?

A

In the sella turcica (saddle shaped hollow of sphenoid bone)

5
Q

What does the viscerocranium consist of?

A

Maxilla and mandible (involved in eating)

6
Q

What’s the top of the skull called?

A

The vault

7
Q

What are the small holes in the vault for?

A

Transmitting emissary veins

8
Q

What is the bregma?

A

Where the coronal suture and saggital suture meet

9
Q

What’s the lambda?

A

Where the lambdoid suture and saggital suture meet

10
Q

What type of joint is the temperomandibular joint?

A

Atypical synovial with articular disc

Jaw

11
Q

What movements can occur at the temperomandibular joint?

A

Depression, elevation, protraction, retraction of the mandible
Also lower jaw side to side

12
Q

What passes through the incisive fossa?

A

The nasopalatine nerve (branch of opthalmic- V1)

13
Q

What’s the crista galli?

A

Vertical midline projection between the cribiform plate (of the ethmoid bone)

14
Q

What does the formanen rotundum lead to?

A

The pterygopalatine fossa

16
Q

What is contained in the internal acoustic meatus?

A

Facial nerve (CN VII), vestibulocochlear nerve (CNVIII) and the labyrinthine artery

17
Q

What are the 3 parts of the sphenoid bone?

A

Greater wings, lesser wings and body

18
Q

What divides the nasal cavity into 2 halves?

A

Vomer bone

19
Q

What is the hard palate made up from?

A

Palatine bone and palatine process of the maxilla

20
Q

What passes through the foramen spinosum?

A

Middle meningeal vessels

21
Q

What passes through the greater and lesser palatine foramina?

A

Palatine nerves (part of maxillary branch of opthalmic of CN V)

22
Q

What passes through the carotid canals?

A

Internal carotid artery and sympathetic nerves

23
Q

Where is the pituitary gland?

A

In a hollow of the sphenoid called the sella turcica

24
Q

What part of the brain is found in the middle temporal fossa?

A

Temporal lobes

25
Q

Where do the opthalmic arteries originate from?

A

From the internal carotid arteries

26
Q

What forms the superior orbital fissure?

A

Between the lesser and greater wings of the sphenoid bone

27
Q

Where is the mental foramen?

A

In the mandible, laterally

28
Q

What passes through the foramen magnum?

A

Medulla oblongata, meninges, spinal accessory nerves (CNXI) and 2x vertebral arteries

29
Q

What passes through the foramen rotundum?

A

Maxillary branch of trigeminal (CNV)

30
Q

What is found in the posterior cranial fossa?

A

The cerebellum, with the tentorum cerebelli roofing it.

31
Q

Why is the face small at birth compared to the rest of the head?

A

Teeth are unerrupted, nasal sinuses are undeveloped

Can fit through birth canal