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BIOL 223 > Axial Skeleton > Flashcards

Axial Skeleton Flashcards

0
Q

Axial skeleton is made up of:

A

Skull, vertebral column, and bony thorax.

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1
Q

The skull is composed of two sets of bones called:

A

Cranial bones and Facial bones

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2
Q

Interlocking joints that join all but one of the bones of the skull.

A

Suture

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3
Q

Joins parietal bones.

A

Sagittal Sutures

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4
Q

Point where the parietal meets the frontal.

A

Coronal Sutures

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5
Q

Point where the parietal meets the temporal.

A

Squamous Sutures

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6
Q

Point where the occipital meets the parietal.

A

Lambdoid Sutures

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7
Q

Name the 8 bones bones composing the cranium.

A

Frontal, Occipital, Sphenoid, Ethmoid, Right Parietal, Left Parietal, Right Temporal, and Left Temporal.

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8
Q

Bony cavity containing the eyes.

A

Orbit

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9
Q

Bone forming anterior cranium.

A

Frontal

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10
Q

Cheekbone

A

Zygomatic

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11
Q

Upper jaw

A

Maxilla

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12
Q

Bone skeleton of nose

A

Nasal

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13
Q

Posterior roof of mouth

A

Mandible

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14
Q

Bone pair united by the Sagittal suture

A

Parietal

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15
Q

Site of jugular foramen and carotid canal

A

Temporal

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16
Q

Contains a “saddle” that houses the pituitary gland.

A

Sphenoid

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17
Q

Allows tear ducts to pass

A

Lacrimal

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18
Q

Forms most of hard palate

A

Maxilla

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19
Q

Superior and medial nasal conchae are part of this bone

A

Ethmoid

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20
Q

Facial bone that contains a sinus

A

Maxilla

21
Q

Site of external auditory meatus

A

Temporal

22
Q

Has greater and lesser wings

A

Sphenoid

23
Q

It’s “holey” plate allows olfactory debts to pass

A

Ethmoid

24
Q

Three cranial bones containing paranasal sinuses.

A

Sphenoid, ethmoid, and frontal.

25
Q

It’s oval-shaped protrusions articulate with the atlas.

A

Occipital

26
Q

Not really a skull bone

A

Hyoid

27
Q

Forms the chin

A

Mandible

28
Q

Inferior part of nasal septum

A

Vomer

29
Q

Containing alveoli bearing teeth

A

Maxilla and mandible

30
Q

Vertebral type with a forked spinous process

A

Cervical vertebra

31
Q

Pivots on C2; lacks a body

A

Atlas

32
Q

Bear facets for articulation with ribs; form part of bony thoracic cage.

A

Thoracic vertebra

33
Q

Forms a joint with the hip bone

A

Sacrum

34
Q

What kind of tissue makes up the intervertebral discs?

A

Fibrocartilage

35
Q

The major components of the thorax are the:

A

Sternum and ribs

36
Q

A bridge like projection that joins the zyogomatic bone anteriorly.

A

Zygomatic process

37
Q

Canal leading to eardrum.

A

External acoustic meatus

38
Q

Needle like projection inferior to external auditory meatus that serves as an attachment point for muscles and ligaments of the neck.

A

Styloid process

39
Q

Rough projection inferior and posterior to external auditory meatus; an attachment for muscles.

A

Mastoid process

40
Q

Opening medial to the Styloid process through which the internal jugular vein and cranial nerves pass.

A

Jugular foramen

41
Q

Opening medial to the Styloid process that allows the internal carotid artery to enter the cranial cavity.

A

Carotid canal

42
Q

Opening on posterior aspect of temporal bone allowing cranial nerves to pass.

A

Internal acoustic meatus

43
Q

Large opening in base of occipital that allows the spinal cord to join with the brain.

A

Foramen magnum

44
Q

Rounded projections lateral to the foramen magnum that articulate with the first cervical vertebra (atlas).

A

Occipital condyles

45
Q

Portions of the sphenoid seen exteriorly on the lateral aspect of the skull, anterior to the temporal bones.

A

Greater wings

46
Q

A saddle shaped region in the sphenoid midline which nearly encloses the pituitary gland in the living person.

A

Sella turcica

47
Q

Bat shaped portions of the sphenoid anterior to the sella turcica.

A

Lesser wings

48
Q

Opening posterior to the sella turcica that allows a branch of cranial never to pass.

A

Foramen ovale

49
Q

Vertical projection to which the dura mater attaches.

A

Crista galli

50
Q

Bony plates lateral to the crista galli through which olfactory fibers pass to the brain from the nasal mucosa.

A

Cribriform plates

51
Q

Not considered a skull bone. Located in the throat.

A

Hyoid

BIOL 223 (5 decks)

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