Skull

Question 0

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

Answer 0

The inner and middle ear

Question 1

What is the pterion?

Answer 1

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

Question 2

Name the 4 parts of the temporal bone

Answer 2

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

Question 3

What is contained within the mastoid process?

Answer 3

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

Question 4

Where is the pituitary gland located?

Answer 4

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

Question 5

What does the viscerocranium consist of?

Answer 5

Maxilla and mandible (involved in eating)

Question 6

What’s the top of the skull called?

Answer 6

The vault

Question 7

What are the small holes in the vault for?

Answer 7

Transmitting emissary veins

Question 8

What is the bregma?

Answer 8

Where the coronal suture and saggital suture meet

Question 9

What’s the lambda?

Answer 9

Where the lambdoid suture and saggital suture meet

Question 10

What type of joint is the temperomandibular joint?

Answer 10

Atypical synovial with articular disc

Jaw

Question 11

What movements can occur at the temperomandibular joint?

Answer 11

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

Question 12

What passes through the incisive fossa?

Answer 12

The nasopalatine nerve (branch of opthalmic- V1)

Question 13

What’s the crista galli?

Answer 13

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

Question 14

What does the formanen rotundum lead to?

Answer 14

The pterygopalatine fossa

Question 16

What is contained in the internal acoustic meatus?

Answer 16

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

Question 17

What are the 3 parts of the sphenoid bone?

Answer 17

Greater wings, lesser wings and body

Question 18

What divides the nasal cavity into 2 halves?

Answer 18

Vomer bone

Question 19

What is the hard palate made up from?

Answer 19

Palatine bone and palatine process of the maxilla

Question 20

What passes through the foramen spinosum?

Answer 20

Middle meningeal vessels

Question 21

What passes through the greater and lesser palatine foramina?

Answer 21

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

Question 22

What passes through the carotid canals?

Answer 22

Internal carotid artery and sympathetic nerves

Question 23

Where is the pituitary gland?

Answer 23

In a hollow of the sphenoid called the sella turcica

Question 24

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

Answer 24

Temporal lobes

Question 25

Where do the opthalmic arteries originate from?

Answer 25

From the internal carotid arteries

Question 26

What forms the superior orbital fissure?

Answer 26

Between the lesser and greater wings of the sphenoid bone

Question 27

Where is the mental foramen?

Answer 27

In the mandible, laterally

Question 28

What passes through the foramen magnum?

Answer 28

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

Question 29

What passes through the foramen rotundum?

Answer 29

Maxillary branch of trigeminal (CNV)

Question 30

What is found in the posterior cranial fossa?

Answer 30

The cerebellum, with the tentorum cerebelli roofing it.

Question 31

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

Answer 31

Teeth are unerrupted, nasal sinuses are undeveloped

Can fit through birth canal