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RT 211 > The Skull > Flashcards

The Skull Flashcards

1
Q

(G) Kranion, (L) Calvaria

A

Skull

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2
Q

Bones of the Skull and Their Parts

Cranium: 8 bones
(F, P, O, T, S, E)

A
  • Frontal(1) .
  • Parietal (2)
  • Occipital (1)
  • Temporal (2)
  • Sphenoid (1)
  • Ethmoid (1)
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3
Q

Bones of the Skull and Their Parts

Visceral Cranium: 14 bones

(M, Z, N, L, P, I, V, M)

A

Maxillae (2)
Zygomatic (2)
Nasal (2)
Lacrimal (2)
Palatine (2)
Inferior conchae or turbinates (2)
Vomer (1)
Mandible (1)

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4
Q

Bones of the Skull and Their Parts

Other bones

(HB, AO)

A

Hyoid bone (1)
Auditory ossicles

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5
Q

Bones of the Skull and Their Parts

What are the 3 bones in the Auditory ossicles

A

malleus - 2
incus - 2
stapes - 2

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6
Q

Bones of the Skull and Their Parts

how many bones are in the Teeth?

A

32 bones

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7
Q

Regions of the Skull
(F, L, P, V, B)

A

Frontal, anterior or facial (1)
Lateral, right and left (2)
Posterior or occipital (1)
Vertical, superior or vertex (1)
Basal or inferior (1)

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8
Q

Sutures of the Skull (7)

A
  • Coronal suture
  • Sagittal suture
  • Lambdoidal suture
  • Squamosal suture
  • Less obvious suture
  • Metopic suture
  • Two mendosal sutures
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9
Q

Sutures of the Skull

Squamous

A

Squamosal suture

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10
Q

Sutures of the Skull

a scale, a thin flat plate

Squamosal suture

A

Squamous

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11
Q

Sutures of the Skull

pass obliquely upwards, one in each half of the squamous part of the occipital bone.

A

Two mendosal sutures

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12
Q

Sutures of the Skull

pass obliquely upwards, one in each half of the squamous part of the occipital bone.

A

Two mendosal sutures

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13
Q

The head or condyle of each ramus of the mandible articulates with the mandibular fossa of the corresponding temporal bone.

A

TMJ — temporomandibular joint

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14
Q

What kind of join is the Temporalmandibular joint

A

synovial - gliding and hinge joint

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15
Q

are cavities within some of the cranial bones. These sinuses on each side open into the corresponding nasal cavity.

A

Paranasal Sinuses or accessory nasal sinuses

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16
Q

What are the Paranasal Sinuses

(F,E,M,S)

A
  • Frontal sinuses (2)
  • Ethmoidal sinuses (2)
  • Maxillary sinuses (2)
    Also named as “antra” — (G) antron = a cave
  • Sphenoidal sinuses (2)
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17
Q

What are the three Cranial Fossae

(A,M,P)

A
  • Anterior cranial fossa (1)
  • Middle cranial fossa (1)
  • Posterior cranial fossa (1)
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18
Q

Cerebral Cranium

What are the parts of the Frontal bone

A
  • Squamous
  • Orbital
  • Nasal
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19
Q

Cerebral Cranium: Frontal Bone

squama

A

Squamous part

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20
Q

Cerebral Cranium: Frontal Bone

Parts of the Squama
(F,S,S,G,F)

A

Frontal eminence
Supraorbital margins (2)
Supraorbital notches (2)
Glabella (1)
Frontal sinuses (2)

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21
Q

Cerebral Cranium: Frontal Bone

What are the Orbital parts

A
  • Ethmoidal notch
  • Orbital plates
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22
Q

Cerebral Cranium: Frontal Bone

Nasal Part

A

Nasal spine

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23
Q

Cerebral Cranium: Frontal Bone

suture present between two frontal bones

A

Metopic suture

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24
Q

Cerebral Cranium: Frontal Bone

are two rounded prominences on the squamous part of the frontal bone.

A

Frontal eminences

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25
Q

Cerebral Cranium: Frontal Bone

ridges of bone that form the superior borders of the circular opening into each
orbit.

A

Supraorbital margins

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26
Q

Cerebral Cranium: Frontal Bone

small notch or sometimes a foramen located towards the medial end of
each supraorbital margin.

A

Supraorbital notch (or foramen)

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27
Q

Cererbral Cranium: Front Bone

is a smooth flat area between the medial ends of the supraorbital margins, and above the upper ends of the nasal bones.

A

Glabella

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28
Q

Cererbral Cranium: Frontal Bone

paired cavities in the squamous part of the frontal bone above the supraorbital margins.

A

Frontal Sinuses

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29
Q

Cerebral Cranium: Frontal Bone

definite gap between the medial borders of the 2 orbital plates.

A

Ethmoidal notch

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30
Q

Cerebral Cranium: Frontal Bone

pointed process that forms a small part of the nasal septum behind the nasofrontal articulations.

A

Nasal spine

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31
Q

Cerebral Cranium

(L) paries - wall

A

Parietal bones

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32
Q

Cerebral Cranium

(L) paries - wall

A

Parietal bones

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33
Q

Cerebral Cranium: Parietal Bone

is a rounded prominence on the lateral surface of each parietal bone.

A

Parietal eminence or parietal tuberosity

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34
Q

Cerebral Cranium: Parietal Bone

The distance between the 2 eminences

A

The greatest transverse diameter

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35
Q

Cerebral Cranium

Parts of the Occipital bone
(F, SP: EOP, IOP, LP: O,H , BP)

A
  • Foramen magnum
  • Squamous part
    External occipital protuberance
    Internal occipital protuberance
  • Lateral parts (2)
    Occipital condyles (2)
    Hypoglossal canals (2)
  • Basilar part (basal) (1)
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36
Q

Cerebral Cranium

(L) occiput — back part

A

Occipital Bone

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37
Q

Cerebral Cranium: Occipital Bone

large opening in the inferior part of the occipital bone through which the medulla oblongata of the brain joins the spinal cord

A

Foramen magnum

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38
Q

Cerebral Cranium: Occipital Bone

oval shaped prominences located on the inferior surfaces of each lateral part.

A

Occipital condyles

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39
Q

Cerebral Cranium: Occipital Bone

short passages from each lateral margin of the foramen magnum, close to its front
end, that open below in front of the condyles.

A

Hypoglossal canals

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40
Q

Cerebral Cranium: Occipital Bone

is that part anterior to the foramen magnum.

A

Basilar part

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41
Q

Cerebral Cranium: Temporal Bone

is a large bony prominence that extend down from the temporal bone posterior to the
ear.

A

Mastoid Process

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42
Q

Cerebral Cranium: Temporal Bone

long slender sliver-like process that extends down from each temporal bone.

A

Styloid process

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43
Q

Cerebral Cranium: Temporal Bone

is a slender bony process that extends horizontally forward from the opening of the ear.

A

Zygomatic process

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44
Q

Cerebral Cranium: Temporal Bone

is a depression on the temporal bone in front of the opening into the ear and below the
origin of the zygomatic process.

A

Mandibular fossa

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45
Q

Cerebral Cranium: Temporal Bone

shaped somewhat like a pyramid and is sometimes called the petrous pyramid.
(G) petra = rock.

A

Petrous part

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46
Q

Cerebral Cranium: Temporal Bone

porus, is an opening on the dorsal surface of the petrous part close to its medial end.

A

Internal acoustic opening

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47
Q

Cerebral Cranium: Temporal Bone

a canal leading from the internal acoustic opening to the inner ear.

A

Internal acoustic meatus

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48
Q

Cerebral Cranium: Temporal Bone

short passage that begins as a circular opening on the inferior surface of the petrous
pyramid close to its medial end

A

Carotid canal

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49
Q

Cerebral Cranium: Temporal Bones

forms the anterior and inferior walls of the external acoustic meatus. (G) drum

A

Tympanic part

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50
Q

Cerebral Cranium

(G) sphen = wedge

A

Sphenoid bone

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51
Q

Cerebral Cranium: Sphenoid Bone

horizontal depression that crosses the body of the bone in front of the sella turcica.

A

Chiasmatic groove

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52
Q

Cerebral Cranium: Sphenoid Bone

horizontal depression that crosses the body of the bone in front of the sella turcica.

A

Chiasmatic groove

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53
Q

Cerebral Cranium: Sphenoid Bone

are 2 short passages extending anteriorly and laterally one from each side of the body.
(G) optikos = eye

A

Optic canals (OT - optic foramina)

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54
Q

Cerebral Cranium: Sphenoid Bone

saddlelike bony depression on the upper surface of the body of the sphenoid.
(L) sella = saddle, Turcica = Turkish

A

Sella Turcica

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55
Q

Cerebral Cranium: Sphenoid Bone

posterior wall of sella turcica

A

Dorsum sella

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56
Q

Cerebral Cranium: Sphenoid Bone

central cavity of the sella turcica

A

Pituitary fossa (hypophyseal fossa)

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57
Q

Cerebral Cranium: Sphenoid Bone

are two small rounded prominences that are located one at each lateral end of the upper margin of the dorsum sella.

A

Posterior clinoid processes

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58
Q

Cerebral Cranium: Sphenoid Bone

lie one on each side of the upper anterior surface of the sella turcica

A

Middle clinoid processes

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59
Q

Cerebral Cranium: Sphenoid Bone

lie one on each side of the upper anterior surface of the sella turcica

A

Middle clinoid processes

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60
Q

Cerebral Cranium: Sphenoid Bone

is an often poorly defined groove that passes vertically along each lateral surface of the
body.

A

Carotid groove

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61
Q

Cerebral Cranium: Sphenoid Bone

are 2 bony processes that extend posteriorly from the medial end of the posterior free margin of each lesser wing.

A

Anterior clinoid processes

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62
Q

Cerebral Cranium: Sphenoid Bone

(round opening) a small opening in the medial basal part of the greater wing just lateral to the superior orbital fissure. Transmit maxillary nerve.

A

Forament rotundum (round opening)

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63
Q

Cerebral Cranium: Sphenoid Bone

(oval opening) is a larger opening in the basal part of the greater wing lateral to and behind the foramen rotundum. Transmits mandibular nerve.

A

Foramen ovale (oval opening)

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64
Q

Cerebral Cranium: Sphenoid Bone

comma shaped opening on the medial margin of each greater wing.

A

Superior orbital fissure

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65
Q

Cerebral Cranium: Sphenoid Bone

pteryx = a wing. Extend down vertically from the inferior surface of the body of the sphenoid bone on each side.

A

Pterygoid processes

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66
Q

Cerebral Cranium

(G) ethmos = a sieve

A

Ethmoid bone

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67
Q

Cerebral Cranium: Ethmoid Bone

wedge between the 2 orbital plates of the frontal bone in the ethmoidal notch on the
floor of the anterior cranial fossa. (L) cribrum = sieve

A

Cribriform plate

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68
Q

Cerebral Cranium: Ethmoid Bone

very thin plate of bone that passes vertically up from the upper surface of the cribiform plate.

A

Crista galli

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69
Q

Cerebral Cranium: Ethmoid Bone

is a flat sheet of bone that extends down in the midline from the cribriform plate and
forms the nasal septum.

A

Perpendicular plate

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70
Q

Cerebral Cranium: Ethmoid Bone

(L) concha = a shelf, a curved shelf. Are bony shelves that extend into
the nasal cavities from the lateral walls.

A

Superior and middle nasal conchae

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71
Q

Visceral Cranium: Maxillae

a large cavity within the body of the maxilla

A

Maxillary sinus

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72
Q

Visceral Cranium: Maxillae

a ridge of bone that forms the lower border of the orbital opening.

A

Infraorbital margin

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73
Q

Visceral Cranium: Maxillae

is a small opening on the anterior surface of the maxilla just below the infraorbital margin.

A

Infraorbital foramen

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74
Q

Visceral Cranium: Maxillae

is a single small pointed projection in the midline at the base of the nasal septum.

A

Anterior nasal spine

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75
Q

Visceral Cranium: Maxillae

is a small rounded bony prominence posterior to the third upper molar tooth

A

Maxillary tuberosity

76
Q

Visceral Cranium: Maxillae

extends up along the lateral side of the nose posterior to the nasal bone, and along the
medial margin of the orbit.

Process

A

Frontal process

77
Q

Visceral Cranium: Maxillae

extends up and laterally from the body of maxilla to meet the maxillary process of the
zygomatic bone.

Process

A

Zygomatic process

78
Q

Visceral Cranium: Maxillae

extends down from the inferior part of the body of the maxilla to form sockets for eight
upper teeth.

Process

A

Alveolar process

79
Q

Visceral Cranium: Maxillae

is a flat shelf of bone that extends medially from the lower part of the body of the maxilla
to meet its mate and form all but the posterior part of the hard palate.

Process

A

Palatine Process

80
Q

Visceral Cranium: Maxillae

The Maxillae form parts of the following:

A
  • The floor of the orbit
  • The medial part of each infraorbital margin
  • The lateral wall of each nasal cavity
  • The floor of each nasal cavity
  • The roof of the mouth Process
81
Q

Visceral Cranium

(OT. malar bone)
Quadrilateral in shape

A

Zygomatic bones

82
Q

Visceral Cranium: Zygomatic Bone

at its lower margin joins the maxilla

A

Maxillary process

83
Q

Visceral Cranium: Zygomatic Bone

joints the frontal bone at the upper lateral margin of the orbit.

A

Frontal Process

84
Q

Visceral C ranium: Zygomatic Bone

joints the zygomatic process of the temporal bone to form the long slender zygomatic
arch.

A

Temporal process

85
Q

Visceral Cranium

2 small flat bones located in the medial walls of the orbits.

A

Lacrimal bones

86
Q

Visceral Cranium

(L) lacrima - a tear

A

Lacrimal bones

87
Q

Visceral Cranium

Each bone is an “L” shaped structure, and includes horizontal and vertical plates of the bone.

A

Palatine bones

88
Q

Visceral Cranium: Palatine Bone

forms the dorsal part of the lateral wall of the nasal cavity

A

The vertical part

89
Q

Visceral Cranium: Palatine Bone

extends medially from the inferior part of the vertical plate to meet the horizontal plate
of the other palatine bone.

A

Horizontal plate

90
Q

Visceral Cranium

Each is a thin curved plate of bone that extends medially like a shelf into the nasal cavity from the lateral wall.

A

Inferior conchae

91
Q

Visceral Column

Part of Inferior conchae

A

Inferior turbinate bones

92
Q

Visceral Cranium

Small flat rectangular shaped bone that joins the nasal part of the frontal bone

A

Nasal bone

93
Q

Visceral Cranium

(L) ——- = a ploughshare
Single flat four sided bone plate that resembles a ploughshare.

A

Vomer

94
Q

Visceral Cranium

Lower jaw

A

Mandible

95
Q

Visceral Cranium

shaped like a horseshoe with its posterior end on each side turned up to articulate with
the temporal bone.

A

A single mandible

96
Q

Visceral Cranium

What are the parts of the Mandible

A

Body and Ramus

97
Q

Visceral Cranium

What are the parts of the Body of the Mandible

A
  • Angles
  • Symphysis
  • Mental protuberance
  • Mental foramina (2)
  • Alveolar part
98
Q

Visceral Cranium

What are the pats of the Ramus of the Mandible

A
  • Coronoid processes
  • Condylar process (neck and head or condyle)
  • Mandibular notches
  • Mandibular foramina
  • Mandibular canals
99
Q

Visceral Cranium: Mandible

is the flat prominence at the inferior part of the symphysis anteriorly — the chin.

A

Mental protuberance

100
Q

Visceral Cranium: Mandible

is a small opening on the outer surface of the body of the mandible on side below the
second premolar tooth.

A

Mental foramen

101
Q

Visceral Cranium: Mandible

is a flat thin upward extension of the anterior part of the ramus.

A

Coronoid process

102
Q

Visceral Cranium: Mandible

extends upwards from the posterior part of the ramus to the adjacent joint.

A

Condylar process

103
Q

Visceral Cranium: Mandible

is half-moon shaped notch between the coronoid and condylar processes of the ramus.

A

Mandibular notch

104
Q

Visceral Cranium: Mandible

is an opening on the medial surface of the ramus about its center.

A

Mandibular foramen

105
Q

Visceral Cranium: Mandible

is a passage within the lower part of the ramus and body of the mandible.

A

Mandibular canal

106
Q

Other bones

A

Hyoid bone and Auditory Ossicles

107
Q

Other bone

“U” shaped bone that is located in the anterior part of the neck. It lies horizontally about half-way between the body of the mandible and the thyroid cartilage.

Body and Cornua

A

Hyoid

108
Q

Hyoid bone

curved anterior part

A

Body

109
Q

Hyoid bone

extends back from the posterior end of the body on each side as a bent process.

A

Greater cornu

110
Q

Hyoid bone

much smaller and extends up from the greater cornu on each side.

A

Lesser cornu

111
Q

Other bones

3 pairs of Auditory ossicles

A
  • Malleus
  • Incus
  • stapes
112
Q

Auditory ossicles

Hammer

A

malleus

113
Q

Auditory ossicles

Stirrup

A

stapes

114
Q

Each cavity is cone shaped, its base lying in front and its apex at the pointed posterior end. Two (Right and Left)

A

The Orbit

115
Q

The Orbit

is formed by the frontal bone.

A

supraorbital margin of the base

116
Q

The Orbit

formed by the maxilla and zygomatic bone.

A

infraorbital margin

117
Q

The Orbit

formed by the frontal and sphenoid.

A

roof of the orbit

118
Q

The Orbit

formed by the maxilla, zygomatic and palatine bones.

A

The floor

119
Q

The Orbit

formed by the maxilla, lacrimal, ethmoid, and the body of sphenoid.

A

The medial wall

120
Q

The Orbit

by the zygomatic and greater wing of the sphenoid.

A

The lateral wall

121
Q

Chambers of the nose extending from the nostrils or openings (nares), on the face to the nasal pharynx, or throat, behind. (two: left and right)

A

The Nasal Cavities

122
Q

The Basal Foramina

right and left; form short passages on the lateral margins of the body of the sphenoid under cover of the lesser wings. Transmits optic nerve and ophthalmic artery.

A

Optic canals (OT. Foramina)

123
Q

The Basal Foramina

right and left; comma shaped slits in the lateral wall of each orbit close to its posterior
end. Transmits several cranial nerves.

A

Superior orbital fissures

124
Q

The Basal Foramina

right and left; are narrow slits between the lateral wall and the floor of the orbit.

A

Inferior orbital fissures

125
Q

The Basal Foramina

is a small circular opening at the medial margin of the greater wing of the sphenoid close to
the medial end of the superior orbital fissure. Transmits a maxillary nerve.

A

Foramen rotundum

126
Q

The Basal Foramina

is an oval opening in the base of the greater wing of the sphenoid bone posterior and lateral to the foramen rotundum. Transmits mandibular nerve.

A

Foramen ovale

127
Q

The Basal Foramina

is a very small circular opening in the greater wing of the sphenoid bone posterior and lateral
to the large foramen ovale. Transmits the middle meningeal artery to the inner surface of the skull.

A

Foramen spinosum

128
Q

The Basal Foramina

is ragged opening at the apex of the petrous pyramid between it and the posterolateral margin of the body of the sphenoid bone. it is where the internal carotid artery enters the cranium after it has passed the carotid canal.

A

Foramen lacerum

129
Q

The Basal Foramina

is a hole on the inferior surface of the petrous pyramid about 1 cm posterolateral to the apex.

A

Carotid opening

130
Q

The Basal Foramina

passes from the carotid opening on the inferior surface of the petrous pyramid through this bone to the foramen lacerum.

A

Carotid canal

131
Q

The Basal Foramina

is a large irregular opening located between the lateral part of the occipital bone and the petrous pyramid. The internal jugular vein leaves the cranium through this opening.

A

Jugular foramen

132
Q

The Basal Foramina

is a single very large opening in the basal part of the occipital bone.

A

Foramen magnum

133
Q

The Basal Foramina

is an opening on the posterior surface of the petrous pyramid above the jugular foramen.

A

The internal acoustic opening

134
Q

Are gap in bone formation at the angles where several bones meet. (fonticulus = a fountain)

A

Fontanelles

135
Q

Fontanelles

located in the midline of the vertex of the skull where the posterior surface of the frontal bone meets the anterior and upper margins of the parietal bone.

A

Anterior fontanelle or frontal fontanelle

136
Q

Fontanelles

lies in the midline on the upper posterior surface of the skull where the pointed end of the occipital bone meets the postprior margins of the two parietal bones.

A

Posterior fontanelle or occipital fontanelle

137
Q

(AS) toth
(L) dens

A

Teeth

138
Q

__ in the maxillae, ___ in the madible

A

16

139
Q

deciduous teeth

A

20

140
Q

Teeth

__ permanent

A

32

141
Q

parts of the tooth

A
  1. crown
  2. neck
  3. root
142
Q

Structure of a Tooth (5)

A
  1. Pulp cavity
  2. dentine
  3. enamel
  4. cement
  5. apical foramen
  6. peridental membrane
143
Q

Classification of teeth: permanent

A

*Molar (12)
*Premolar (8)
*Canine (4)
*Incisor (8)

144
Q

Parts of the Tooth

is the exposed part, visible in the mouth

A

Crown

145
Q

Parts of the Tooth

are small rounded prominences on the surfaces of the premolar and molar teeth

A

Cusps

146
Q

Parts of a Tooth

is the constricted part where the crown and root meet

A

The neck

147
Q

Parts of a Tooth

the small tapered end, is located in the alveolar process of the maxilla or the alveolar part of the mandible

A

The root

148
Q

Parts of a Tooth

is that aspect facing the tongue

A

Lingual surface

149
Q

Parts of a Tooth

is its outer aspect facing the lip or cheek

A

Labial or buccal surface

150
Q

The Structure of a Tooth

A
  1. The pulp cavity
  2. The dentine
  3. The enamel
  4. cement
  5. the apical foramen
  6. the peridental membrane
151
Q

The Structure of a Tooth

is the central cavity within a tooth extending from the crown down the root.

A

The pulp cavity

152
Q

The Structure of a Tooth

is modified bone that surrounds the pulp cavity in both the crown and root

A

The dentine

153
Q

The Structure of a Tooth

is a thin covering that forms an outer coat for the crown.

A

The enamel

154
Q

The Structure of a Tooth

is a layer of modified bone that covers the dentine of the root.

A

The cement

155
Q

The Structure of a Tooth

is a minute opening in the tip of the root by which a nerve and an artery enter, and a vein
leaves the pulp cavity.

A

The apical foramen

156
Q

The Structure of a Tooth

is a layer of fibrous tissues that surorunds the root of each tooth and attaches it to the wall of the socket in which the tooth lies

A

The peridental membrane

157
Q

refers to the position of the upper and lower teeth in relation to each other when the mouth is closed.

A

Occlusion

158
Q

the cusps and grooves do not fit into each other, or in some instances opposing teeth may not touch
each other.

A

Malocclusion

159
Q

The Function of Teeth

A
  • Incisors bite off mouthfuls of food
  • Premolars and molars grind and masticate food.
  • The object is to break food into small pieces so that the digestive juices may come into intimate contact
    with the food particles when it reaches the digestive organs.
160
Q

Some Basic Terms Defined

Two cone shaped cavities for the eyeballs

A

Orbits

161
Q

Some Basic Terms Defined

is the point at the outer margin where the upper and lower eyelid meets

A

Lateral canthus

162
Q

Some Basic Terms Defined

The two chambers of the nose

A

Nasal Cavities

163
Q

Some Basic Terms Defined

Is the partition between the two nasal cavities

A

Nasal septum

164
Q

Some Basic Terms Defined

Is the pear shaped hole between the two maxillary bones into the nasal cavities

A

The piriform opening

165
Q

Some Basic Terms Defined

Are cavities within some of the cranial bones

A

Paranasal sinuses

166
Q

Some Basic Terms Defined

Is the expanded cavity at the upper end of the digestive tract

A

The mouth

167
Q

Some Basic Terms Defined

Is the chin, the prominence on the anterior part of the mandible at the midline

A

Mentum

168
Q

Some Basic Terms Defined

Is the passage leading into the ear and ear drum

A

External acoustic meatus

169
Q

Some Basic Terms Defined

Is the opening leading into the ear and eardrum

A

External acoustic opening

170
Q

Some Basic Terms Defined

Is a slender bridge of bone that extends on each side from in front of the external acoustic opening to the zygomatic bone below, and lateral to, the orbit

A

Zygomatic arch

171
Q

Some Basic Terms Defined

Bony prominence that extends down from the lateral surface of the skull behind the ear

A

Mastoid process

172
Q

Some Basic Terms Defined

Protuberance is a small but definite prominence on the occipital bone in the midline

A

External occipital protuberance

173
Q

Some Basic Terms Defined

Flat Part

A

Squamous part

174
Q

Some Basic Terms Defined

Are unossified area at the junctions where three bones of the skull meet in the infant

A

Fontanelles

175
Q

Some Basic Terms Defined

The Point on the vertex of the skull where the sagittal suture meets the coronal suture

A

Bregma

176
Q

Some Basic Terms Defined

The point at the posterior end of the sagittal suture where the occipital and two parietal bones are in contact

A

Lambda

177
Q

Some Basic Terms Defined

Are three depressions on the inner surface of the floor of the skull

A

Cranial fossae

178
Q

Some Basic Terms Defined

Openings in the floor or base of the skull through which nerves and veins leave the cranial cavity or arteries enter it

A

Basal foramina

179
Q

Congenital Anomalies

without a head

A

Acephalus

180
Q

Congenital Anomalies

two heads, dicepalic

A

Dicephalus, bicephalus

181
Q

Congenital Anomalies

a large head, macrocephalic

A

Macrocephalus

182
Q

Congenital Anomalies

fluid in the head

A

Hydrocephalus

183
Q

Congenital Anomalies

A small head, microcephalic

A

Microcephalus

184
Q

Congenital Anomalies

two halves of the soft or hard palate may fail to unite at the midline in the roof of the mouth

A

Cleft palate

185
Q

Congenital Anomalies

the upper lip may fail to unite on one side or other

A

Hare lip deformity

RT 211 (12 decks)

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