Temporal bone - landmarks, functions, attachments

Question 1

Name this bone.

Answer 1

Temporal bone

Question 2

What attaches to the temporal surface of the temporal bone?

Answer 2

Temporalis muscle

Question 3

Name the landmark.

Answer 3

Zygomatic process

Question 4

What attaches to the zygomatic process?

Answer 4

Masseter muscle

Question 5

Name the landmark.

Answer 5

Mandibular fossa

Question 6

What is the function of the mandibular fossa?

Answer 6

It articulates with the TMJ disc.

Question 7

Name the landmark.

Answer 7

Articular eminence and tubercle

Question 8

Name the landmark.

Answer 8

Petrotympanic fissure

Question 9

What is the fuction of the petrotympanic fissure?

Answer 9

Transmits chorda tympani nerve

Question 10

Name the landmark.

Answer 10

Squamotympanic fissure

Question 11

What attaches to the squamotymmpanic fissure?

Answer 11

Articular disc

Question 12

Name the landmark.

Answer 12

Tegmen tympanii (sliver of bone in squamotympanic fissure)

Question 13

What’s the name of the opening at the outside of the auditory tube?

Answer 13

Opening of osseous portion of auditory tube

Question 14

Name the landmark.

Answer 14

External auditory meatus

Question 15

Name the landmark.

Answer 15

Mastoid process

Question 16

What attaches to the mastoid process? (3)

Answer 16

Sternocleidomastoid, splenius capitis & longissimus capitis muscles

Question 17

Name the landmark.

Answer 17

Mastoid notch

Question 18

What attaches to the mastoid notch?

Answer 18

Posterior belly of digastric muscle

Question 19

Name the landmark.

Answer 19

Occipital groove

Question 20

What is the function of the occipital groove?

Answer 20

It houses the occipital artery

Question 21

Name the landmark.

Answer 21

Sigmoid sulcus

Question 22

What is the function of the sigmoid sulcus?

Answer 22

Houses the sigmoid sinus

Question 23

Name the landmark.

Answer 23

Trigeminal impression

Question 24

What is the function of the trigeminal impression?

Answer 24

Houses the trigeminal ganglion

Question 25

Name the landmark.

Answer 25

Internal auditory meatus

Question 26

What is the function of the internal auditory meatus?

Answer 26

Transmits facial and vestibulocochlear nerves

Question 27

What attaches to the inferior surface of the petrous part?

Answer 27

Levator veli palatini muscle

Question 28

Name the landmark.

Answer 28

Carotid canal (on inferior surface of temporal bone)

Question 29

What is the function of the carotid canal?

Answer 29

Transmits the internal carotid artery and carotid nerve

Question 30

Name the landmark.

Answer 30

Jugular fossa

Question 31

What is the function of the jugular fossa? (4 things)

Answer 31

It transmits the internal jugular vein, glossopharyngeal nerve, vagus nerve, and accessory nerve

Question 32

What transmits the tympanic nerve?

Answer 32

The canaliculus for the tympanic nerve

Question 33

What attaches at the superior border of the temporal bone?

Answer 33

Tentorium cerebelli

Question 34

Name the landmark.

Answer 34

Groove for the superior petrosal sinus

Question 35

Name the landmark.

Answer 35

Styloid process

Question 36

What attaches to the styloid process? (4)

Answer 36

Stylohyoid, stylopharyngeus, and styloglossus muscles. And stylohyoid ligament

Question 37

Name the landmark.

Answer 37

Stylomastoid foramen

Question 38

What is the function of the stylomastoid foramen?

Answer 38

Transmits the facial nerve