Axial Skeleton Flashcards

(80 cards)

1
Q

How many bones are in the skull

A

28 bones

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2
Q

How many the cranium or head

A

8

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3
Q

How many bones in the face

A

14

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4
Q

How many bones in the ossicles

A

6

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5
Q

What is special about the ossicle

A

It is completely ossified as birth
Smallest bones in the body

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6
Q

Mandible

A

movable bone in the face
Strongest and largest bone in the skull

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7
Q

What are immovable joints called

A

Sutures

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8
Q

Describe a sinus

A

It is embedded in the bones, and opening within a bone, lined with mucus

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9
Q

How did a sinus get its name

A

Named for the overlying bone

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10
Q

How did a sinus get its name

A
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11
Q

What is in the sinus

A

Only air and mucus

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12
Q

Sinusitis

A

Inflammation with the increased mucus that causes cavity to fill up and causes pressure and gives a headache

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13
Q

Sphenoid

A

Single bone with extends across the skull behind each orbital cavity
Forms the temporal

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14
Q

Ethmoid

A

Not visible from the outside
Posterior to the nasal bone

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15
Q

What are the special features of the mandible

A

The mandibular condyle which connects to the temporal bone
And the TMJ

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16
Q

Maxilla

A

Upper jawbone and extends into the mouth forming the hard palette
Two bones which fuse before birth

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17
Q

Hyoid

A

Single bone
Located under the neck under the tongue
Only floating bone in the body

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18
Q

Vertebral column

A

Flexible
After birth you have 26 before birth you have 36 to 34

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19
Q

What are the bones in the invertebral column that have invertebral discs

A

Cervical, thoracic, lumbar

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20
Q

Cervical

A

Seven bones, and
Three foramens

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21
Q

Thoracic

A

Each thoracic vertebra is connected to a rib on each side, 12 bones, looks like a giraffe

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22
Q

Lumbar

A

5 bones
Lower back, biggest of all, looks like a moose, lower back

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23
Q

Whatโ€™s bones and the vertebral column are fused together

A

Sacrum and coccyx

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24
Q

What is the common name for the sacrum

A

Hip bone

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25
What is the common name for the coccyx
Tailbone, very small
26
What are the invertebral discs made out of
Fibrocartilage
27
Invertebral Foraman
Hole on the side of the vertebral column
28
Vertebral foramen
Hole in the middle of the vertebral column
29
Spinous process
Something sticking out of the back of each vertebra
30
What are the three foramens in the cervical vertebra called
Horizontal, vertebral and intravertebral
31
What is the first cervical vertebra, describe it
Atlas, articulates with the occipital bone, allows for nodding yes.
32
What is the second cervical vertebra, describe it
Axis, articulates with atlas, allows for nodding no
33
What goes through the foramen in the thoracic vertebra
Spinal nerve
34
What are the holes in the sacrum called, and what goes through them
Sacral foramen, spinal nerves
35
What is the common name for sternum
Breast bone
36
What is the body of the sternum used for
Use the CPR to compress the heart between the sternum and vertebral column
37
What is cartilage in the sternum called
Coastal cartilage
38
What is the coastal cartilage function
Allows for breathing
39
Why is this xphoid process avoided during CPR
It is made out of cartilage so whenever compressing the heart it can go through it and smash it, because it is flexible
40
When does the xiphoid process ossifie?
later in life , old age
41
How many ribs do we have
24
42
How many true ribs
14
43
How do you classify true ribs
Direct attachment to the coastal cartilage
44
How many false ribs
6
45
How do you classify false ribs
Attaches to the last true rib
46
How many floating ribs
4
47
How do you classify floating ribs
Does not attach to the sternum at all
48
What do ribs have in common
They all attached to the thoracic vertebral, true / false ribs attached to the sternum by coastal cartilage
49
What is the front of the skull called
Frontal
50
What is the back and the bottom of the skull called
Occipital bone, the thickest
51
What does the spinal nerve go through in the skull called
Foramen Magnum
52
What are the two holes in the eye, describe and what is their function
Optic foramen, round, optic nerve goes through this bone for vision. Orbital fissures, irregular shape, nerves that control muscles in the eye go through here, moves eye up and down side to side etc.
53
Describe the styloid process and location
Long and thin, infront of the mastoid process, behind the mandible.
54
Describe the mastoid process and location
The big and thick process, behind of the styloid process, in front of the occipital bone
55
How many bones are in your face
14
56
How many bones in your oscicles
6
57
What are the special features in the temporal bone
External auditory meatus, mastoid process, styloid process
58
Special features in the occipital bone
Magnum foramen
59
Special features in the sphenoid bone
Optic foramen, orbital fissures
60
Special features in the mandible
Mandibular condyle
61
What are the special features in the cervical vertebra
Horizontal foraman, vertebral foramen, invertebral foramen
62
What are the special features in the vertebra
Invertebral Foraman, and invertebral disc, vertebral foramen, spinous process
63
And special features in the sternum
Body ( central part or middle part of the sternum) Xiphoid process
64
Forehead bone
Frontal bone
65
Cheekbone
zygomatic
66
Lower jaw
Mandible
67
Bridge of nose
Nasal bone
68
Anterior part of the hard palette ( roof of the mouth)
Maxilla
69
Lateral and Superior cranium
Parietal
70
Bone containing tear ducts
Lacrimal
71
Bone extending from one side of the cranium to the other
Sphenoid
72
Forms the superior and middle nasal concha
Ethmoid
73
Bone containing mastoid process
Temporal
74
Bone containing the external auditory means
Temporal bone
75
Middle ear bones found in this bone
Temporal
76
Nasal septum bone
Vomer
77
Houses the teeth
Maxilla and mandible
78
Large process of the temporal bone procerior and inferior to the ear
Mastoid process
79
A hole in spenoid bone for the optic nerve
Optic foramen
80
B
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