A&P II Skull Quiz 1-pgs3-6

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Another name for the posterolateral fontanel?

Mastoid Fontanel(also paired)

What is a suture?

Meaning seam or stitch

Forms the posterior part and the lower 1/3 of the cranial floor

Occipital bone

Another name for the posterior fontanel

Occipital fontanel or Lambda

Where are the posterolateral fontanel situated?

On each side of the skull at the junction of the varietal, occipital, and temporal bones

A bony prominence on each outer surface of the parietal bones

Parietal eminence

What is another name for the anterolateral fontanel?

Sphenoidal fontanel (they are paired)

Lateral or external canthus

The point @ the outer border of the eye where the upper and lower eyelids meet

What does the cerebral cranium protect?

brain from injury, the organs of sight, hearing and balance

Another name for the skull?

cranium

What allows the skull to be compressed during birth?

fontanels

Easily palpated

inion

The bridge of the nose

nasion

When do the posterolateral fontanel close?

1 or 2 months after birth, but don't completely close until age of 1 yr old

Name the 4 prominent skull sutures

1.coronal suture 2.sagittal suture 3.lambdoidal suture 4.squamosal suture

How many bones are included in the visceral cranium?

14 bones of the face

Nasal fossae

2 chambers of the nose

When does the posterior fontanel close?

2 months after birth

How many bones of the skeleton form the head?

22 bones

How many bones make up the cerebral cranium?

8 bones

Where do the nasal fosse end?

Behind the nasal part of the throat, the nasopharynx

Where are fontanels found?

Between cranial bones

Where is the posterior fontanel situated?

Between the 2 parietal bones and the occipital bone

Where is the anterior fontanel located?

Between the angles of the 2 parietal bones and the 2 segments of the fontanel bone

Where can the coronal suture be found?

Between the frontal and the two parietal bones

Where can the squamosal suture be found?

Between the parietal bone and the temporal bones

Where can the sagittal suture be found?

Between the two varietal bones in the MSP

When do the anterolateral fontanel close?

By the 3rd month after birth

The cerebral cranium is also referred to as the?

Calvarium

Orbits

Cavities for the eyeballs

Frontal Squama

Corresponds to the forehead, and gradually slopes down from the coronal suture, then turns abruptly downward

Single bone that forms the forehead and part of the roof of the skull

Frontal bone

Another name for anterior fontanel?

Frontal fontanel or Bregma

Lie deep to the superciliary arches

Frontal sinuses

What kind of joint is a suture?

Immovable joint

When does the anterior fontanel close?

In about 18-24 months

Foramen magnum

Large hole in the inferior part of the bone through which the medulla oblongata and arteries pass

Where are the anterolateral fontanel located?

Located on each side of the skull at the junction of the frontal, varietal, temporal, and spheroid bones

Squamosal part

The flat part at the back of the head

Nasal septum

The vertical partition between the 2 nasal fossae

Where can the lambdoidal suture be found?

between the parietal bones and the occipital bone

what is another name for the visceral cranium?

facial skeleton

The 2 bones, one on each side of the cerebral cranium

parietal bones

Another word for squama

scale

what does the visceral cranium form?

the bony cavities for the protection of the eyes, nasal passages, and mouth


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