Bones

Question 1

The human skull is made up of how many bones?

Answer 1

22 bones

Question 2

How many bones make up the cranium?

Answer 2

8

Question 3

The frontal bone contains five structures. What are they?

Answer 3

Frontal eminences, superciliary arches, glabella, supra-orbital margins, frontal sinuses

Question 4

What are the two rounded prominences located at the upper part of the forehead?

Answer 4

Frontal Eminences

Question 5

These extend laterally from the glabella…

Answer 5

What is superciliary arches.

Question 6

This is a small, smooth elevation that lies between the superciliary arches

Answer 6

What is the glabella

Question 7

These can be found on the upper room of the eye orbit, or eyesocket just below the superciliary arches

Answer 7

What is supra-orbital margins.

Question 8

A small cluster of isolated bones found in the joints of the cranial bone are called…

Answer 8

Sutures

Question 9

The sinuses are located medially, and behind the superciliary arches

Answer 9

What is frontal sinuses

Question 10

An air filled cavity within a bone, lined with mucous membrane, and connected to/communicate with the nasal cavity.

Answer 10

What is a sinus

Question 11

This suture can be found between the two parietal bones…

Answer 11

What is the sagittal suture

Question 12

These two cranial bones form the greater portion of the sides and roof of the cranial cavity

Answer 12

What is the parietal bones

Question 13

This suture is found between the temporal bones and the parietal bones…

Answer 13

What is the squamosal suture

Question 14

These cranial bones are located below the parietal bone at the sides of the skull in floor of the cranium

Answer 14

What are the temporal bones

Question 15

Temporal bones contain eight structures what are the eight structures?

Answer 15

1.Squamous portion 2. zygomatic process, 3.external auditory Meatus 4. mastoid process 5. styloid process 6. mandibular fossa, 7. petrous portion, 8. carotid canal, a.k.a. carotid, Foreman

Question 16

This is the thin flat vertical portion of the cranium form the interior and superior part of the temple in front of the ears

Answer 16

What is the squamous portion

Question 17

This process of projects from the inferior surface of the squama bone.

Answer 17

What is the zygomatic process

Question 18

The zygomatic process articulates with this process of the zygomatic bone

Answer 18

What is the temporal process

Question 19

The temporal process of the zygomatic bone helps form these arches…

Answer 19

What is the zygomatic arches.

Question 20

What part of the temporal bone articulates with the zygomatic bone?

Answer 20

The zygomatic process of the temporal bone articulates with the temporal process of the zygomatic bone.

Question 21

The external auditory meatus is also known as what?

Answer 21

What is the ear canal

Question 22

This canal is located below the squama and in front of the mastoid process and inferior to the squama & anterior to the mastoid process.

Answer 22

What is the ear canal aka the external auditory meatus.

Question 23

This part runs from the outer ear to the middle ear, and allows the sound to enter the ear.

Answer 23

What is the external auditory meet us a.k.a. ear canal.

Question 24

This process is located behind, and below the external auditory meatus posteriorly and superiorly to the external auditory meatus…

Answer 24

What is the mastoid process (the bump behind the ear)

Question 25

This process is located inferior to the temporal bone and serves as a point of attachment where the muscles and ligaments of the tongue neck and higher on, is also connected to the scm muscle.

Answer 25

What is the styloid process…

Question 26

This fossa is a depression, located in the back (posterior) and bottom (inferior) surface of the zygomatic process and articulates with the condylar process of the mandible know as the temporal mandibular articulation (TMJ)

Answer 26

What is the mandibular fossa

Question 27

The Mandibular Fossa articulates with the condylar process of the mandible to form this articulation.

Answer 27

What is the temporomandibular articulation

Question 28

This portion of the temporal bone is located in the floor of the cranial cavity between the sphenoid and occipital bones and is the hardest part of the temporal bone also containing the middle ear, internal ear, and carotid canal.

Answer 28

What is the petrous portion

Question 29

This foreman has the right and left internal carotid arteries passing through it

Answer 29

What is the carotid canal a.k.a. carotid Foreman

Question 30

This cranial bone is located in the back and bottom of the skull, the posterior and inferior portion of the skull

Answer 30

What is the occipital bone.

Question 31

Is suture is found between the occipital and the parietal bones

Answer 31

What is a lambdoidal suture

Question 32

This bone contains the foreman magnum, occipital condyles, super nuchal line and the external occipital protuberance.

Answer 32

What is the occipital bone

Question 33

This large opening on the inferior part of the occipital bone has the medulla oblongata in the right, and left vertebral arteries passing through it (merges from the basilar artery and branches into the subclavian artery

Answer 33

What is the foramen magnum

Question 34

These oval shaped processes are located on both sides of the foreman, magnum and articulate with the first cervical vertebrae (C1)

Answer 34

What is the occipital condyles

Question 35

This prominent midline projection on the back posterior surface above superior to the foramen magnum - is also known as the EOP for short

Answer 35

What is the external occipital protuberance

Question 36

These two bony ridges extend literally from each side of the external occipital protuberance, and serves as the origin of the occipital frontalis muscle.

Answer 36

What is the superior nuchal line

Question 37

This bone is located in the middle part of the base of the skull, posterior to and slightly superior to the nasal cavity, and is described as bat or wing shaped

Answer 37

What is this sphenoid bone

Question 38

This bat or wing shaped bone is a part of the floor and side walls of the eyesocket, and is also known as the “keystone of the cranial floor”

Answer 38

What is this sphenoid bone

Question 39

This structure located within the sphenoid bone is a saddle shaped structure on the anterior surface of the sphenoid bone containing the pituitary gland

Answer 39

What is the Sella turcica?

Question 40

This cavity in the sphenoid bone is lined with mucus membrane which drains into the nasal cavity

Answer 40

What is sphenoidal sinus

Question 41

This light spongy bone is in the midline of the front of the floor of the cranium between (medial to) the eye orbit and interior to the sphenoid bone and posterior to the nasal bones.

Answer 41

What is the ethmoid bone

Question 42

This bone is a major superior supporting structure of the Nasal cavity and forms the cranial floor, the medial wall of the eye orbits, superior portion of the nasal septum and the side walls of the nasal cavities.

Answer 42

What is the ethmoid bone

Question 43

What are the five structures of the ethmoid bone?

Answer 43

The cribriform plate aka horizontal, plate, the perpendicular plate, the crista galli, a superior nasal Conchae (and middle nasal conchae (2 turbinates) and the ethmoidal sinuses

Question 44

This plate within the ethmoid bone forms, the anterior floor of the cranium and the roof of the nasal cavity. It contains olfactory foramina where the olfactory nerve passes.

Answer 44

What is the cribriform plate a.k.a. horizontal plate

Question 45

This inferior portion of the cribriform plate forms the superior portion of the nasal septum

Answer 45

What is the perpendicular plate

Question 46

This small triangular process of the Ethmoid bone project superiorly from the cribriform plate, and serves as a point of attachment for the meninges 

Answer 46

What is the Crista galli