Fetal skull

Question 1

List the three components of the fetal skull

Answer 1

The face
The base
The vault

Question 2

Which two skull components interstate?

Answer 2

The face

The base

Question 3

Which parts of the skull are not part of the moulding process of labour?

Answer 3

The face and base

Because they are unable to reduce at all

Question 4

Where is the vault?

Answer 4

The area of the skull from the orbital ridges to the snow of the neck

Question 5

Which bones does the vault include?

Answer 5

The occiput, the vertex, the brow

Question 6

The brow is also referred to as?

Answer 6

The sinciput

Question 7

In cephalic presentation which the the presenting part?

Answer 7

The vertex

Question 8

What is the denominator of the vertex presentation?

Answer 8

The occiput

Question 9

Draw and label a skull

Answer 9

Face (bottom of chin starts)- brow  brow starts)- vertex (anterior fontanelle starts)- occiput 
(posterior fontanelle starts)
Temporal bone 
Parietal bones
Frontal bone
Occipital bone 
Coronal suture
Saggital suture
Squamous suture
Lambdoid suture
Anterior fontanelle
Posterior fontanelle

Question 10

Frontal suture

Answer 10

Goes from anterior fontanelle to nose

Question 11

What are sutures?

Answer 11

Soft fibrous tissues linking skull bones

Question 12

What features of the skull enable moulding to take place?

Answer 12

The sutures

Question 13

What is a fontanelle?

Answer 13

A membranous, non ossified area of the skull where three or more sutures meet

Question 14

Anterior fontanelle is also known as?

Answer 14

Bregma

Question 15

Suboccipitofrontal (SOF) diameter

Answer 15

10cm

Question 16

Suboccipitofrontal (SOF) delivery?

Answer 16

Deflexed head- breech

Question 17

Suboccipitofrontal (SOF) Location?

Answer 17

Occiput centre to frontal suture centre

Question 19

Submentobregmatic (SMB) delivery?

Answer 19

Face presentation - face fully extended

Question 20

Submentobregmatic (SMB) location

Answer 20

Occiput to anterior fontanelle

Question 22

Submentovertical (SMV) delivery?

Answer 22

Face presentation

Head not fully extended

Question 23

Submentovertical (SMV) location?

Answer 23

Chin to highest point of vertex

Question 24

Submentobregmatic (SMB) diameter

Answer 24

9.5cm

Question 25

Mentovertical (MV) delivery?

Answer 25

Brow presentation

Question 26

Mentovertical (MV) location?

Answer 26

Chin to centre of vertex

Question 28

Suboccipitobregmatic (SOB) delivery?

Answer 28

Normal vertex presentation

Question 29

Suboccipitobregmatic (SOB) location?

Answer 29

Occiput to anterior fontanelle

Question 31

Occipitofrontal (OF) delivery?

Answer 31

Persistent occiput posterior position

Question 32

Occipitofrontal (OF) location?

Answer 32

Bridge of nose to occiput

Question 33

Moulding

Answer 33

Overlapping of fetal skull bones by sutures to allow head to move through pelvis and canal

Question 34

Frontal lobe

Answer 34

Area of the brain the the region of the frontal bone

Question 35

Parietal lobe

Answer 35

Region of the brain around the parietal bones

Question 36

Temporal lobe

Answer 36

Region of the brain around the temporal bone

Question 37

Occipital lobe

Answer 37

Region of the brain below the occipital bone

Question 38

Cerebellum location and purpose

Answer 38

Region of the brain below the occipital lobe | Receives and processes sensory information from the spinal cord and regulates movement and coordination

Question 39

Medulla oblongata purpose

Answer 39

Controls respiration and circulation. It is part of the autonomic (involuntary) nervous system

Question 40

Frontal lobe purpose

Answer 40

Cognition and emotion

Question 41

Parietal lobe purpose

Answer 41

Primary motor cortex

Question 42

Occipital lobe purpose

Answer 42

Visual cortex

Question 43

Temporal lobe purpose

Answer 43

Processing sensory input

Question 44

What are the five layers of scalp tissue?

Answer 44

``` Skin Subcutaneous tissue (fat and blood vessels) Gales aponeurotica- muscle layer Loose connective tissue Periosteum ```

Question 45

What are meninges

Answer 45

Protective membranes of the brain

Question 46

What are the three brain meninges?

Answer 46

``` Dura mater (directly inside skull) Arachnoid mater (wispy layer with web-like extensions) Pia mater (in direct contact with brain) ```

Question 47

Spaces between meninges

Answer 47

Sub- dural space | Sub- arachnoid space

Question 48

2 cerebral membranes

Answer 48

Flax cerebri- vertical fold of dura mater. Nose to occiput. Between the two hemispheres of the brain Tentorium cerebelli- fold that separates cerebrum from cerebellum

Question 49

The cerebrum

Answer 49

Contains four lobes (frontal, temporal, parietal, occipital)

Question 50

Haematoma

Answer 50

Solid swelling of clotted blood in the head injury from birth

Question 51

What is the site for ossification in the skull?

Answer 51

Parietaleminance

Question 52

Submentovertical (SMV) diameter?

Answer 52

11cm

Question 55

Mentovertical (MV) diameter

Answer 55

13.5cm

Question 58

Suboccipitobregmatic (SOB) diameter?

Answer 58

9.5cm

Question 61

Occupitofrontal (OF) Diameter?

Answer 61

11.5cm

Question 62

Caput succedaneum

Answer 62

Injury to head from caput | Crosses the suture line and is superficial and goes away quickly

Question 63

Ceohalhaematoma

Answer 63

Does not cross sutures | Between periosteum and skull bone, takes a while to go

Question 64

Correct name for chin on fetal skull

Answer 64

Mentum

Question 65

6 layers is fetal skull

Answer 65

``` Skin Periosteum Bone Dura mater Arachnoid Pia mater ```