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ANATOMY > Skeletal System > Flashcards

Skeletal System Flashcards

1
Q

What is the order of vertebrae?

A

7 cervical
12 thoracic
5 lumbar

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2
Q

what are inter vertebral discs?

A

flexible fibrocartilage which separate the single vertebre

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3
Q

What does the axial skeleton include?

A

80 bones
bones, skull vertebral column, an rib cage

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4
Q

What are the 4 sutures?

A

Coronal
sagittal
squamous
lambdoid

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5
Q

What is the foreman Magnum?

A

Bone of occipital bone
surrounds the lover part of the brain (where the spinal cord connects)

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6
Q

What are occipital codyles?

A

rocker like and lateral to foramen
rest on the first vertebra of the spinal column

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7
Q

What is the sphenoid bone?

A

butterfly shape that spans the width of the skull
forms part of the floor of the cranial cavity

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8
Q

what is the Stella turcica?

A

small depression in the middle of the sphenoid bone

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9
Q

what is held in the Stella turcica?

A

pituitary gland

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10
Q

What is the Crista galli?

A

projects from it’s superior surface
the outermost covering of the brain attaches to this projection

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11
Q

What is cribriform plates?

A

small holes on each side of Crista galli
allows nerve fibers carrying impulses from the olfactory (smell) receptors of the hose to reach the brain.

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12
Q

how many facial bones are there?

A

14
12 paired

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13
Q

what are the two single bones of the face?

A

mandible
vomer

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14
Q

what are palatine bones?

A

paired bones lying posterior to the palatine processes of the maxillae
-form the posterior part of the hard palate

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15
Q

what is the clef palate?

A

failure to these or the palatine processes to fuse medially results in the clef plate

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16
Q

What are the lacrimal bones?

A

tear ducts

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17
Q

what is the interior conchae?

A

twin curved bones projecting from the lateral walls of nasal cavity

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18
Q

What bone is the conchae a part of?

A

the ethmoid bone

19
Q

where the hyoid bone lie?

A
  • not a part of skull
  • closely related to the mandible and temporal bones
  • doesn’t articulate directly with any other bone
20
Q

features of the atlas

A

c1
no centrum
receives the occipital condyles of skull “yes”

21
Q

features of axis?

A

c2
acts as a pivot for rotation of atlas and skull

22
Q

what is alae? (sacrum)

A
  • wing-like in shape
  • articulates laterally with the hip bones forming the sacroiliac joints
  • the sacrum forms the posterior wall of the pelvis
23
Q

all facial bones except (BLANK) join the maxillae?

A

maxillary

24
Q

is the maxillae the main bone of the face?

A

yes

25
Q

where does the maxillae carry the upper teeth in?

A

alveolar margin

26
Q

what are inter vertebral discs?

A

flexible fibrocartilage which separate the single vertebrae

27
Q

vertebral discs prevent what?

A

shock to the head when walking and running

28
Q

features of the body / centrum?

A
  • disc like
  • weight-bearing part of the vertebrae facing anteriorly in the cerebral column
29
Q

features of the vertebral arch

A
  • arch formed from the joining of all posterior extensions
  • the laminae and pedicles from the vertebral body
30
Q

features of the vertebral foreman

A

canal through which the spinal cord passes

31
Q

features of the transverse processes

A

two lateral projections from the vertebral arch

32
Q

features of the thoratic vertebrae

A
  • larger than the cervical vertebrae
  • heart shaped body
  • has two costal demifacets (articulating surfaces) on each side
  • receive the heads of the ribs
33
Q

features of the lumbar vertebrae

A
  • massive block like bodies
  • short
  • hatchet shaped spinous processes
  • make them look like a moose head from the lateral aspect
34
Q

what two things does the sacrum consist of?

A

sacral canal
coccyx

35
Q

what is the sacral canal?

A

the cerebral Canal continuing inside the sacrum

36
Q

sternum (flat) has three parts

A

the manubrium
the body
the xiphoid process

37
Q

what is the coccyx?

A
  • formed from the fusion of three to five tiny irregular shaped vertebrae
  • it is the human tailbone
38
Q

where is the sternum attached?

A

to the first seven pairs of ribs

39
Q

what is the jugular notch?

A

concave upper border of the manubrium
it can be palpated (examined by touch) easily

40
Q

what are TRUE ribs?

A

first 7 pairs
they attach directly to the sternum by costal cartilage

41
Q

what are FALSE ribs?

A

the next 5 pairs
they either attach indirectly to the sternum or are not attached to the sternum at all

42
Q

what are FLOATING ribs?

A

the last two pair of the false ribs do not attach to the sternum

43
Q

what is the intercostal spaces between the ribs are filled with?

A

intercostal muscles that aid in breathing

ANATOMY (9 decks)

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