The Axial Skeleton Ch 3 Flashcards

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1
Q

Axial Skeleton

A

The framework of the body that includes the skull, auditory ossicles, hyoid bones, vertebral column, ribs and sternum

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2
Q

Appendicular Skeleton

A

The framework of the body that consists of the extremities, shoulder, and pelvic girdle

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3
Q

Append

A

Add or hang

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4
Q

Cranium

A

The portion of the skull that encloses the brain

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5
Q

Frontal

A

Forms the front of the cranial cavity or “front” or cranial portion of the skull

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6
Q

Parietal

A

Paired bones that form the roof of the caudal cranial cavity

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7
Q

Occipital (Ohck-sihp-ih-tahl)

A

Forms the caudal aspect of the cranial where the foramen magnum, or the opening for the spinal cord, is located

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8
Q

Foramen

A

An opening in bone through which tissue passes

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9
Q

Magnum

A

means large

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10
Q

Temporal

A

Paired bone that form the sides and base of the cranium

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11
Q

Sphenoid

A

Paired bones that form part of the base of the skull and parts of the floor and sides of the bony eye socket

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12
Q

Ethmoid

A

Forms the rostral part of the cranial cavity

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13
Q

Incisive

A

Forms the rostral part of the hard palate and lower edge of nares

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14
Q

Ptergoid (tahr-ih-goyd)

A

Forms the lateral wall of the nasopharynx

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15
Q

Zygomatic

A

Forms the orbit and cheekbone; projections from the temporal and zygomatic bone form the zygomatic arch (cheekbone)

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16
Q

Zygomatic Arch

A

The cheekbone

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17
Q

Maxilla

A

Forms the upper jaw

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18
Q

Mandible

A

Forms the lower jaw

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19
Q

Palatine

A

Forms part of the hard palate

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20
Q

Lacrimal

A

Forms the medial part of the orbit

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21
Q

Nasal

A

Forms the bridge of the nose

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22
Q

Vomer

A

Forms the base of the nasal septum

23
Q

Nasal Septum

A

The cartilaginous structure that divides the two nasal cavities

24
Q

Hyoid

A

Bone suspended between the mandible and the laryngopharynx

25
Q

Vertabral Column (spinal column or backbone)

A

Supports the head and body and protects the spinal cord

26
Q

Vertebra (plural vertebrae)

A

Individual bones that the vertabral column consists of

27
Q

Vertebr/o or spondyl/o (combining form)

A

Vertebra (plural vertebrae)

28
Q

The ‘body’ of the vertebra

A

The solid portion ventral to the spinal cord

29
Q

The ‘arch’ of the vertebra

A

The dorsal part of the vertebra that surrounds the spinal cord

30
Q

The lamina (lahm-ih-nah)

A

The left or right dorsal half of the arch. Processes project from the vertebra

31
Q

Process

A

Projection

32
Q

Spinous Process

A

A single projection from the dorsal part of the vertebral arch

33
Q

Transverse Processes

A

Project laterally from the right and left sides of the vertebral arch

34
Q

Articular Process

A

Paired cranial and caudal projections located on the dorsum of the vertebral arch

35
Q

Foramen

A

Means Opening

36
Q

Vertebral Foramen

A

The opening in the middle of the vertebra through which the spinal cord passes

37
Q

Intervertebral discs

A

Cartilage discs that cushion and separate the vertebrae from each other

38
Q

Disc/o (combining form)

A

Discs

39
Q

‘Cervical Vertebral region’

A

Neck area ‘C’ of the vertebra

40
Q

‘Thoracic Vertebral region’

A

Chest area ‘T’ of the vertebra

41
Q

‘Lumbar Vertebral region’

A

Loin area ‘L’ of the vertebra

42
Q

‘Sacral Vertebral region’

A

Sacrum area ‘S’ of the vertebra

43
Q

‘Coccygeal (also known as caudal) Vertebral region’

A

Tail area ‘Cy’ or ‘Cd’

44
Q

Atlas

A

C1 or Cervical vertebra one - the first vertebra

45
Q

Axis

A

C2 or Cervical vertebra two - the first vertebra

46
Q

Ribs

A

Paired bones that attach to the thoracic vertebrae

47
Q

Cost/o (combining form)

A

Rib

48
Q

Costals

A

Ribs

49
Q

Sternum

A

(Breastbone) Forms the midline ventral portion of the rib cage (Divided into 3 parts)

50
Q

Manubrium (mah-nu-bre-uhm)

A

The cranial portion of the sternum

51
Q

The ‘body’ of the sternum

A

The middle portion

52
Q

Xiphoid Process

A

The caudal portion of the sternum

53
Q

Thoratic Cavity (rib cage)

A

Protects the heart and lungs. Boundaries made up of the ribs, sternum and thoracic vertebrae