The skull

Question 1

The cranium is the skeleton of the head. It consists of two parts: _________ and _________

Answer 1

Neurocranium and viscerocranium (facial skeleton)

Question 2

The neurocranium is divided into two parts the _______ and ________

Answer 2

Calvaria ( skull cap)

Cranial base (floor of the skull)

Question 3

The neurocranium is formed by how many bones?
What are the paired bones?
What are the unpaired bones?

Answer 3

8 bones
Paired: temporal and parietal
Unpaired: sphenoid, ethmoid, frontal and occipital

Question 4

Most bones in the neurocranium are united by sutures which are examples of what kind of joint?

Answer 4

Fibrous

Question 5

The viscerocranium consists of how many bones?

Which are paired and which are unpaired?

Answer 5

14 bones
Two unpaired: vomer and mandible
6 Paired: maxilla, inferior nasal conchae (turbinate), zygomatic, palatine, nasal and lacrimal.

Question 6

_______ forms the skeleton of the forehead, articulating inferiorly with the nasal and zygomatic bones

Answer 6

Frontal bone

Question 7

what bone forms the roof of the orbit and part of the floor of the anterior part of the cranial cavity

Answer 7

Frontal bone

Question 8

The intersection of the frontal and nasal bones is the ______

Answer 8

Nasion

Question 9

The supraorbital margin and supraorbital foramen or notch are parts of what bone of the cranium?

Answer 9

Frontal bone

Question 10

What is another name for the anteiror aspect of the cranium?

Answer 10

Norma frontalis

Question 11

________ is a ridge surprise or to the supraorbital margin

Answer 11

Supercilliary arch

Question 12

The _____ is the smooth area between he superciliary arches on the frontal bone

Answer 12

Glabella

Question 13

_______ form the prominences of the cheeks, lie inferolateral sides of the orbits and rest on the maxillae

Answer 13

Zygomatic bones

Question 14

What foramen pierces the lateral aspect of each zygomatic bone?

Answer 14

Zygomaticofacial foramen

Question 15

Paired nasal bones articulate with each other in the inline and with the ______ bone superiorly

Answer 15

Frontal

Question 16

__________ is the anterior nasal opening of the cranium

Answer 16

Piriform aperture

Question 17

The _______ of the maxillae are supporting bones for maxillary teeth

Answer 17

Alveolar processes

Question 18

What is the anterior portion of the ramus of the mandible?

Answer 18

Coronoid process

Question 19

What is the foramen between the first and 2nd premolars?

Answer 19

Mental foramen

Question 20

_________ is located on the medial aspect of the mandibular ramus.
It permits passage of the nerve involved with tooth sensation

Answer 20

Mandibular foramen

Question 21

_____ is the region where the two halves of the mandible fuse

Answer 21

Mandibular symphysis

Question 22

_______ is the line passing form inferior of the ramus onto the body of the mandible

Answer 22

Oblique line

Question 23

What bones are part of the Norma frontalis? (5)

Answer 23

Frontal bone
Zygomatic bone
Nasal bone
Maxillae 
Mandible

Question 24

What is the norma lateralis formed by?

Answer 24

Both the neurocranium and the viscerocranium

Question 25

________ is where most o the temporalis muscle is located

Answer 25

Temporal fossa

Question 26

What are the following boundaries of the temporal fossa Superior and posterior: Anterior: Inferior:

Answer 26

Superior and posterior: superior and inferior temporal lines Anterior: frontal and zygomatic bones Inferior: zygomatic arch

Question 27

What is the zygomatic arch formed by?

Answer 27

The union of the temporal process of the zygomatic bone and the zygomatic process of the temporal bone

Question 28

What are the 6 parts of the temporal bone?

Answer 28

``` Squamous part Zygomatic process Tympanic part Mastoid process External acoustic foramen Styloid process ```

Question 29

________, part of the temporal bone that is a large flat plate that articulates with greater wing of sphenoid anteriorly and with the parietal bone superiorly

Answer 29

Squamous part

Question 30

What does the squamous part of the temporal bone articulate with anteriorly and superiorly?

Answer 30

Anterior: greater wing of sphenoid Superiorly: parietal bone

Question 31

_ is an H-shaped formation of sutures that unite the frontal, parietal, and parts of the mastoid and temporal bone

Answer 31

Pterion

Question 32

What 4 bones unite to form the Pterion?

Answer 32

Frontal Parietal Greater wing of sphenoid Temporal bone

Question 33

_______ is formed by the intersection of the sagittal and lambdoid suture

Answer 33

Lambda

Question 34

______ is the landmark formed by the intersection of the sagittal and coronal sutures

Answer 34

Bregma

Question 35

_____ is the superior point of the cranium, near the midpoint of the sagittal suture

Answer 35

Vertex

Question 36

What is the hard palate formed by?

Answer 36

The palatine processes of the maxillae anteriorly and the horizontal plates of the palatine bones posteriorly

Question 37

What are the 3 foramina that open on the oral aspect of the hard palate?

Answer 37

Incisive foramina Lesser palatine foramen Greater palatine foramen

Question 38

Of the 3 foramina on the oral aspect of the hard palate: Which lies posterior to the central incisor? Which is located on the posterolateral part of the hard palate?

Answer 38

Incisive fossa Lesser palatine foramen and greater palatine foramen ** greater is posterior to the lesser

Question 39

choanae are separated from each other by the _____

Answer 39

Vomer

Question 40

What two bones form the nasal septum?

Answer 40

Vomer and perpendicular plate

Question 41

Pterygoid processes extend inferiorly on each side of the ______ consisting of the medial and lateral _______

Answer 41

Sphenoid Medial and lateral Pterygoid plates

Question 42

_________ tube lies medial to the spine of the sphenoid, inferior to the junction of the greater wing of sphenoid and petrous part fo the temporal bone

Answer 42

Pharyngotmpyanic (auditory) tube

Question 43

Mandibular Assad are depression in which bone and accommodate the heads of the mandible?

Answer 43

Squamous part of the temporal bone

Question 44

What forms the lateral boundaries between the middle and posterior cranial fossae?

Answer 44

Superior border of the petrous part of the temporal bones

Question 45

_______ are the sharp posterior margins of the lesser wings of the sphenoid bones

Answer 45

Sphenoidal crests

Question 46

Sphenoidal crests are the sharp posterior margins of the ________. It ends medially by forming the __________

Answer 46

Lesser wings of the sphenoid bone Anterior clinoid processes

Question 47

________ lies posterior to the hypopheseal fossa

Answer 47

Foramen lacerum

Question 48

______ is a large opening between the occipital bone and the petrous part of the temporal bone

Answer 48

Jugular foramen

Question 49

What structure is anterior to the jugular foramen

Answer 49

Carotid canal

Question 50

_________ on the body of the sphenoid is surrounded by the anterior and posteiror clinoid processes

Answer 50

Sella turcica

Question 51

______ is a marked incline behind the sella turcica which leads to the foramen magnum

Answer 51

Clivus

Question 52

______ and _____ sinuses form a broad groove that continues with the jugular foramen

Answer 52

Transverse and sigmoid sinuses

Question 53

_______ is attached to the tympanic membrane

Answer 53

Malleus

Question 54

The head of the malleus articulates with the _____

Answer 54

Incus

Question 55

The ______ is located between the malleus and the stamped and articulates with them

Answer 55

Incus

Question 56

What are the 3 auditory ossicles?

Answer 56

Malleus incus and stapes

Question 57

_______ is the smallest ossicle attached to the margins of the oval window

Answer 57

Stapes

Question 58

Where is the hyoid bone located?

Answer 58

In the anterior midline of the the neck between the chin and thyroid cartilage at the level of C3