Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy > 14 - Bones of the Skull > Flashcards

14 - Bones of the Skull Flashcards

1
Q

What regions is the skull divided into?

A

The mandible
The cranium
The calotte
The neurocranium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the functions of the skull?

A
  • Articulates with the superior facet of the the C1 vertebrae.
  • Protects the brain.
  • Supports the fleshy features of the face.
  • Acts as an anchor apparatus for mastication.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the sutures of the neurocranium?

A

Coronal, Sagittal, lambdoid, Squamosal.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Coronal Suture

A

Between the frontal and the 2 parietal bones.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Sagittal Suture

A

Between the 2 parietal bones.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Lambdoid Suture

A

Between the occipital and parietal bones.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Squamosal Suture

A

Where the temporal articulates with the frontal parietal and occipital bones.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the cartilaginous precursors in developing cranial bones known as?

A

Fontanelles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the bones of the neurocranium?

A

Frontal, Parietal, Occipital, Temporal, Sphenoid, Ethmoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The frontal bone

A
  • Superior aspect of the skull, it encloses the brain.
  • Forms the anterosuperior aspect of the cranium in 4 parts:
    1- The squamous part- largest compartment which forms the shape of the forehead.

2&3 - The orbital parts - two triangular shaped flat plates extending posteriorly from the supraorbital margin.

4- The nasal part - A small area that projects inferiorly between supraorbital margins, acts as an area of articulation for the nasal bones and front of the maxilla.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Parietal Bones

A
  • They sit on the left and right side of the head.
  • There are many meningeal grooves on the inside.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Occipital bone

A
  • On the posterior side of the cranium.
  • There are 3 muscle attachment sites which makes the surface rough.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the foramen magnum?

A

A hole in the occipital bone which allows the brain to communicate with the rest of the spinal cord.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the cerebella fossae?

A

The 4 indents on the anterior side of the occipital bone.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Temporal bones

A
  • Located on the lower lateral walls of the skull behind the ears.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Where does the eardrum sit in the head?

A

On the outer area of the external occipital meatus.

17
Q

Where are the air cells located?

A

In the temporal bone specifically the mastoid process.

18
Q

Shenoid Bone

A
  • Consists of greater and lesser wings, a body and pterygoid plates below.
  • The superior part of the bone encloses and protects the brain.
19
Q

Ethmoid Bone

A
  • Forms the top of the nasal aperture.
  • It contains the cribiform plate with many holes allowing the nerves to come through.
20
Q

What are the bones of the vicerocramium?

A

The Maxilla, zygomatic bones, palative bones, vomer, lacrimal bones, nasal bones, nasal conchae and mandible

21
Q

The maxilla

A
  • The bones that hold up the upper dentition.
  • Forms the side of the one and inferior portion of the orbit.
  • Incluces the alveolar process that holds up the teeth.
  • Consists of the maxillary crypts.
22
Q

Zygomatic Bones

A

The cheekbones, mark out the edge of the eye.

23
Q

Vomer

A

Divides the nose into the left and right septum

24
Q

Lacrimal bones

A
  • Forms the most mdeial anterior portion of the orbit.
  • The lacrimal groove on the side directs the tears into the nasal cavity.
25
Q

Nasal bones

A
  • Forms the top portion of the nose
  • This is the only portion of the nose that protrudes out.
26
Q

Nasal conchae

A

Sits on both the left and right side and is covered in the muscus membrane.

27
Q

The Mandible

A
  • Holds the lower dentition.
  • Articulaltes with the temorla bone allowing us to talk, chew etc.
  • Left and right condyle on either side.
28
Q

What are the 3 bones of the middle ear?

A

The malleus, Incus and Stapes

29
Q

What is the Hyoid?

A

A bone that sits withtin the throat and inferior to the mandible, it only has muscular attachments.

30
Q

What are the 4 pared sinuses?

A

1-Frontal
2-Ethmoidal
3-Maxillary
4-Sphenoid

31
Q

What do orbitial fissures allow the passage of?

A

Nerves, muslces, veins, arteries and the optic canal.

32
Q

Where does the optic chiasma sit?

A

On the tuberculum sellae of the sphenoid.

Anatomy (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions