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Anatomy & Physiology > Bones of the Skull and Bone Features > Flashcards

Bones of the Skull and Bone Features Flashcards

1
Q

forms the forehead and roof of the orbits

A

Frontal bone

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2
Q

is an openingthatabove each orbit thatworks as apassageway for nerves and blood vesselstoand from the eyebrows andeyelids

A

Supraorbital foramen

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3
Q

air-filledinternal chambers thatwillconnect with the nasalcavity…this area includes _______ which makes the bone lighter and produces mucus that cleans and moistens the nasal cavities.

A

the frontal sinuses

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4
Q

an opening for a major sensory nerve from the face.

A

Infraorbital foramen

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5
Q

Onboth sides of the skull.
Is posterior to the frontal bone.
Form the roofandsuperior walls of the cranium.

A

Parietal bones

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6
Q

Parietal bones interlock along the

A

Sagittal suture

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7
Q

Both parietal bonesarticulatewiththe frontal bonealong the

A

Coronal suture

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8
Q

Forms theposterior andinferior portionsof the cranium

A

Occipital bones

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9
Q

Along thesuperior margin the occipital bonecontacts twoparietalbones at the

A

Lambdoid suture

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10
Q

The __________ connects thecranial cavity to the spinal cavity

A

foramen magnum

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11
Q

The _______ are on either side of theforamenmagnum andare the sites ofarticulationwith the skull and vertebral column.

A

Occipital condyles

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12
Q

Below the parietalbones andcontributingto the sidesand baseof the cranium.

A

Temporal bones

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13
Q

Contact theparietalbonesalongthe

A

Squamous suture

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14
Q

Feature of the temporal bone that leads to thetympanum (eardrum).

A

External acoustic canal

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15
Q

Feature of the temporal bone that is a transverse depression which marksthepoint ofarticulation with the lowerjaw (mandible).

A

Mandibular fossa

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16
Q

This feature of the temporal bone is a prominentbulgeposteriorand inferior tothe entranceto the externalacousticcanal.Provides a sitefor attachmentof muscles that rotate or extend the head.

A

Mastoid process

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17
Q

This temporal bone feature is next to the base of themastoid process. Long and sharp.Attached to ligaments thatsupport the hyoid bone and anchorsmuscles associatedwith thetongue and pharynx.

A

Styloid process

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18
Q

Formspart of thefloor of the cranium.
Actslike a bridgeunitingthe cranial andfacial bones.
Braces the sides of the skull.
Looks like a giant bat with wings extended

A

Sphenoid bone

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19
Q

The sphenoid bone contains a pair of sinuses called the

A

Sphenoidal sinuses

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20
Q

The lateral “wings” of the sphenoidextendto either sidefrom a central depression called the ______.This structureencloses the pituitary gland.

A

Sella turcica

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21
Q

Anteriorto the sphenoid bone.
Consists oftwohoneycombedmasses of bone.
Formspart of the cranial floor, contributes tothe medial surfaces of theeye orbits, and forms the roof and sides of the nasal cavities.

A

Ethmoid bone

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22
Q

This feature of the ethmoid bone is a prominentridge that projects above the superior surface of the ethmoid.

A

Crista galli

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23
Q

This feature of the ethmoid bone permits passage of the olfactorynerves(smell).

A

Cribriform plate

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24
Q

These ethmoid features are projectionsthat extend into thenasal cavitytoward the nasal septum, which dividesthe nasalcavity into left and right portions.The conchaeslow andbreak up airflowthrough the nasal cavity.

A

Superior andMiddlenasalconchae

25
Q

This ethmoid feature extends inferiorlyfrom the crista galli and passing between the conchae.

A

Perpendicular plate

26
Q

Referred to as the maxillae
Articulate with allother facialbones except the mandible.
Forms the:
floor andmedial portion of the rimof theorbitals
walls of the nasal cavity
the anterior roofof the mouth (hard palate).

A

Maxillary bones

27
Q

Large and lighten thebonesabove theembeddedteeth.

A

Maxillary sinuses

28
Q

Form theposteriorsurface of the bony palate (roof of the mouth).
Superior surfaces contribute to thefloor of the nasalcavity
Superiortipformspart of the floor of the orbitals.

A

Palatine bones

29
Q

Inferior marginarticulateswith thepairedpalatine bones.

Supportsa prominentpartitionthat formspart of the nasal septum (divides the nostrils)alongwith the ethmoidbone.

A

The Vomer

30
Q

On each side of the skull.

Articulateswith the frontal bone and the maxillato complete the lateralwall of the orbit.

A

Zygomatic bones

31
Q

Alongits lateral margin there is a slender bony extension that curve laterally and posteriorly to meet a process from the temporal bone. Together they will form the ________________ (cheekbone).

A

Zygomatic arch

32
Q

Located within theorbits and its medial surface.Articulates with the frontal, ethmoid, and maxillary bones.

A

Lacrimal bones

33
Q

Paired
Project from thelateral walls of the nasalcavity.
Shape helps airflow and deflectsarriving airtoward theolfactory (smell) receptors.

A

Inferior nasal conchae

34
Q

Includesbones that formthe superior and lateral wallsof the nasal cavities.
Sinuses drain into them

A

Nasal complex

35
Q

separates the left and rightsides of thenasal cavity

A

Nasal septum

36
Q

reducesweight of the skull.Help protect therespiratory system.Connected to the nasal cavities and lined by mucous membranes.

A

Paranasal sinuses

37
Q

Bone of the lowerjaw.

Horizontal curve withverticalprocessesat either side

A

Mandible

38
Q

posterior.Curved surfacearticulates with themandibular fossaof the temporal bone. Very mobile.

A

Condylar process

39
Q

anterior.The attachment pointfor the temporalismuscle (closes the jaw).

A

Coronoid process

40
Q

U-shaped
Suspended below the skull
Ligaments extend from thestyloid processes of thetemporalbones to the lesserhorns.
Serves as a base for muscles associated with the larynx (voicebox), tongue, andpharynx.
Supports andstabilizesthe position of thelarynx.

A

Hyoid bone

41
Q

Any projection or bump

A

Process

42
Q

An extension of a bone making an angle with the rest of the structure

A

Ramus

43
Q

A large, rough projection

A

Trochanter

44
Q

A smaller, rough projection

A

Tuberosity

45
Q

A small, rounded projection

A

Tubercle

46
Q

A prominent ridge

A

Crest

47
Q

A low ridge

A

Line

48
Q

A pointed process

A

Spine

49
Q

The expanded articular end of an epiphysis, separated from the shaft by a neck

A

Head

50
Q

A narrow connection between the epiphysis and the diaphysis

A

Neck

51
Q

A smooth, rounded articular process

A

Condyle

52
Q

A smooth, grooved articular process shaped like a pulley

A

Trochlea

53
Q

A small, flat articular surface

A

Facet

54
Q

A shallow depression

A

Fossa

55
Q

A narrow groove

A

Sulcus

56
Q

A rounded passageway for blood vessels or nerves

A

Foramen

57
Q

A passageway through the substance of a bone

A

Canal

58
Q

An elongate celft

A

Fissure

59
Q

A chamber within a bone, normally filled with air

A

Sinus

Anatomy & Physiology (16 decks)

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