Axial Skeleton (Lab) Flashcards

Covers the axial skeleton in preparation for the lab portion of anatomy.

1
Q

What is your forehead bone called?

A

Frontal Bone

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1
Q

What is the lower arc of your eyebrow called?

A

Superorbital Arch

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2
Q

What is the upper arch of your eyebrow called?

A

Supercillary Arch

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3
Q

Where are the Parietal Bones

A

Left & Right sides of the Back Cranium/ On top of Head

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4
Q

Where is parallel to eyebrows and part of your frontal sinuses?

A

Nasal crease

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5
Q

What two arched and curved lines cross the middle of the Parietal Bone?

A

Temporal Lines

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6
Q

What “stitches” separate the frontal and parietal bones?

A

Coronal Suture

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7
Q

What “stiches” borders the Occipital and both Parietal Bones?

A

Lamboid Suture

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8
Q

What “stiches” separate the Parietal Bones?

A

Saggital Suture

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9
Q

What “stiches” border the Temporal Bone, Parietal, and Occipital Bone?

A

Squamous Suture

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10
Q

What skull bone is in the back lower part of the cranium?

A

Occipital Bone

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11
Q

What two rounded knobs on the occipital bone that form a joint with the first cervical vertebra?

A

Occipital Condyles

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12
Q

What “hole” does the spine enter the skull through?

What Bone is it a part of?

A

Foramen Magnum

Occipital Bone

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13
Q

What lines lie on the occipital bone and on the lateral sides of the External Occipital Proteuberance?

A

Nuchal Lines

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14
Q

Where do the muscles attach to form the head?

A

External Occipital Protuberance

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16
Q

What forms part of the anterior cranial fossa; part of the nasal septum; roof & lateral walls of nasal Cavity; part of medial wall of eye orbit?

A

Ethmoid Bone

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16
Q

What is directly lateral to the Crista Galli of the Ethmoid Bone?

A

Cribriform Plate

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17
Q

What is the attachment site for cranial dural septa to help stabilize brain within skull?

A

Crista Galli

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18
Q

What is on the Inner lateral Wall of Ethmoid Bone

Anterior View

A

Superior & Middle Nasal Conchae

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19
Q

What forms the superior part of the nasal septum?

A

Perpendicular Plate

*Rhino Tusk

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20
Q

What is directly lateral to the Crista Galli of the Ethmoid Bone and lies in the Cribriform plate?

A

Cribriform (Olfactory) Foramen

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21
Q

What forms a zygomatic arch with the zygomatic process of the temporal bone?

A

Temporal Process

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22
Q

What bone forms the cheek & lateral part of the orbit?

A

Zygomatic Bone

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23
Q

Which part of the Zygomatic bone articulates with the Frontal Bone?

A

Frontal Process

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24
Q

What bone unites cranial & facial muscles?

wings

A

Sphenoid Bone

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25
Q

What are the “Bigger wings” on the Sphenoid Bone?

A

Greater wings

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26
Q

What are the “Smaller wings” on the Sphenoid Bone?

A

Lesser Wings

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27
Q

What is the vertical boundary of the Greater & Lesser Wings?

A

Pterygoid Process

*pterygoid canal: transmits nerves

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28
Q

What holds the pituitary gland and is part of the Sphenoid Bone?

A

Sella Turica

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29
Q

What shallow, transverse depression is anterior to the sella turica and crosses the superior surface of the Sphenoid Bone?

A

Optic Groove

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30
Q

What are the smallest bones in the body?

Name all 3.

A

Ear ossicles
Malleus: “hammer”
Incus: “anvil”
Stapes: “stirrup”

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31
Q

What resembles a spiral shell?

A

Conchae

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32
Q

What is located in the inferolateral (below & to one side) wall of the nasal cavity and is a seperate bone nasal conchae of the ethmoid bone?

A

Inferior Nasal Conchae

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33
Q

What bone is bordered by the squamous suture, lies posterior to Zygomatic Bone, and inferior to Parietal Bones?

A

Temporal Bones

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34
Q

What lateral flat surface is directly inferior to squamous suture?

A

Squamous Part

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35
Q

What thick part of the temporal bone houses sensory structures of the inner ear that provide info about hearing and balance?

A

Petrous part

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36
Q

What is the prominent bulge on the inferior surface of the temporal bone and an anchoring site for muscles that move the neck?

A
Mastoid Process
(Masto=breast)
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37
Q

What entrance is surrounded by the tympanic part on the Temporal Bone.

A

External Acoustic Meatus

External Auditory Canals

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38
Q

What provides a passageway for nerves and BV of the internal ear?
Part of the internal Temporal Bone

A

Acoustic Canal

Internal Acoustic Meatus

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39
Q

What long and sharp point lies inferior to the squamous part of the Temporal Bone?
(Points to Zygomatic Bone)

A

Zygomatic Process

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40
Q

Each temporal bone articulates with the mandible inferior to the base of both zygomatic processes in what depression?

A

Mandibuller Fossa

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41
Q

What thin, pointed, projecting bone serves as an attachment for several hyoid and tongue muscles

A

Styloid Process

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42
Q

What paired bone hold the upper teeth/jaw?

A

Maxillary (maxilla) Bones

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43
Q

What hard plate is formed anteriorly by horizontal medial extensions of both maxillae?

A

Palatine Process

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44
Q

What part of the maxilla bone pointing towards the Frontal Bone?

A

Frontal Process

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45
Q

What provides passageway for BV & nerves on the Maxillary Bone.

A

Infraorbital Foramen

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46
Q

Where are the holes for the teeth?

A

Alveoli of the maxilla bone

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47
Q

What holds the teeth in the Maxillary Bone?

A

Alveolar Process

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48
Q

What is the bone of the lower jaw called?

A

Mandible

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49
Q

What horizontal region of the Mandible is connected to the vertical Ramus?

A

Body of Mandible

50
Q

What vertical region of the Mandible Bone is connected to the horizontal Body?

A

Ramus

51
Q

What is the anterior projection of the ramus that connects to the temporalis muscle?

A

Coronoid Process

52
Q

What is the posterior projection of each mandibular ramus called?
(far back of jaw)

A

Condylar Process

53
Q

What bone forms inferior & posterior parts of nasal septum & is triangular in shape and, when viewed laterally, resembles a farming plow?

A

Vomer

54
Q

What L-shape bone forms part of the nasal cavity, eye orbits, & hard palate?

A

Palatine Bones

55
Q

What bone forms posterior part of hard plate; forms small part of nasal caivty and orbit wall?
articulates with the nasal bone anteriorly and with the ethmoid bone posteriorly

A

Lacrimal Bones

56
Q

What forms the posterior portion of the hard palate on the Palatine Bone?

A

Horizontal Plate

57
Q

What are the soft spots on a fetal skull called?

What are the three main soft spots?

A

Fontanelles

anterior, posterior, mastoid

58
Q

Which of the fantanelles close quicker?

A

Mastoid

59
Q

What air-filled chambers open into the nasal cavities?

A

Paranasal Sinuses

60
Q

What air-filled chamber is superior to the nasal bone?

A

Frontal Sinus

61
Q

What air-filled chamber is a part of the Sphenoid Bone?

A

Sphenoidal Sinus

62
Q

What air-filled chamber is part of the Maxillary Bone?

A

Maxillary Sinus

63
Q

What paired air-filled chambers open from the ethmoid into the nasal cavity?

A

Ethmoidal Labyrinth (sinus)

64
Q

What immovable joints form the boundaries between the cranial bones?

A

Skull Sutures

65
Q

What is the petrous part of temporal plate & passes through the internal carotid artery?

A

Caratoid Canal

66
Q

What passagway is the posterior part of orbit between greater and lesser wings of sphenoid bone?

A

Superior Orbital Fissure

67
Q

What passageway is supraorbital margin of orbit in frontal bone?

A

Supraorbital Foramen

68
Q

What passageway of the junction of the maxilla, sphenoid, & zygomatic bones?

A

Infraorbital Foramen

69
Q

What passageway between the temporal bone & occipital bone (posterior to carotid canal)?

A

Jugular Foramen

70
Q

What’s the passageway of the Greater Wing of the sphenoid?

A

Foramen Spinosum

71
Q

What passageway between the petrous part of the temporal bone, sphenoid bone, & occipital bone

A

Foramen Lacerum

72
Q

What passageway is anteriomedial to occipital condyle of occipital bone?

A

Hypoglossal Canal

73
Q

What posteomedial part of orbit in lesser wings of sphenoid bone?

A

Optic Foramen (Canal)

74
Q

What is between mastoid & styloid processes of temporal bone?

A

Stylomastoid Foramen

75
Q

What passageway is part of the Occipital Bone

A

Foramen Magnum

76
Q

What passageway is part of the Greater Wing of the Sphenoid Bone

A

Foramen Ovale

77
Q

What passageway is inferior to second premolar on anterolateral surface of mandible?

A

Mental Foramen

78
Q

What passageway is inferior to the orbit in the maxilla?

A

Incisive Fossa (Foramen)

79
Q

What passageway is located on the horizontal plate of the palatine bone?

A

Greater & Lesser Palatine Foramen

80
Q

What passageway is part of the medial surface of the ramus of the mandible bone?

A

Mandibular Foramen

81
Q

What are the Lateral openings between vertebrae that are

passageway for spinal nerves to travel to other parts of body?

A

Vertebral Foramen

82
Q

What is the articular (connecting site) surface of the inferior articular processes of vertebrae, articulating with the inferior articular facet of the vertebra above to form a zygapophysial joint?

A

Superior Articular Facet

83
Q

What part of vertebrae projects posteriorily?

A

Spinous Process

84
Q

What is the anterior, weight bearing structure of almost all vertebrae?

A

Centrum (Body)

85
Q

What are the lateral projections on both sides of the vertebrae arch?

A

Transverse Process

86
Q

What “small foot” forms the lateral vertebral arch and connects to the spinal column?

A

Pedicle

Pes=foot

87
Q

What two broad plates, extending dorsally and medially from the pedicles, fusing to complete the roof of the vertebral arch?

A

Lamina

88
Q

What are the lateral openings between adjacent vertebrae?

A

Intervertebral Foramen

89
Q

What articular surface of the inferior articular process of vertebrae, articulating with the superior articular facet of the vertebra below to form a zygapophysial joint?

A

Inferior Articular Facet

90
Q

What vertebrae articulates superiorily w/ the occipital condyles of the Occipital Bone and inferiorily w/ the 1st thoracic vertebrae?
How many are there?

A

Cervical Vertebrae

C1-C7

91
Q

What bone forms the point on the nose?

A

Nasal Bones

92
Q

What deep grove is on the nasal surface of the body of the maxilla, in front of the opening of the sinus, and is converted into the nasolacrimal canal, by the lacrimal bone and inferior nasal concha?

A

Nasolacrimal Groove

93
Q

What is the first vertebrae called?

A

Atlas

94
Q

What is the second cervical vertebrae w/ dens/obontoid process?

A

Axis

95
Q

“U” shaped

A

Transverse Foramina

96
Q

What is the circular depression that articulates with the entire head or tubercle of the rib?
**only present in the thoracic vertebrae

A

Costal Facet

97
Q

What is the anterosuperior edge of the first sacral vertebra that bulges anteriorly into the pelvic cavity?

A

Sacral Promontory

98
Q

What dorsal ridge is formed by the infusion of the spinous processes of individual sacral vertebrae?

A

Median Sacral crest

99
Q

What ‘s on the ala lateral surface, marks the site of articulation with the os coxae of the pelvic girdle, & forms the sacroilliac joint?

A

Auricular Surface

100
Q

What is the semicircular depression that articulates with either the superior or inferior edge of the head of the rib?
**only in thoracic vertebrae

A

Costal demifacet

101
Q

What vertebrae forms into a single bony structure in the mid to late 20s and articulates with 2 ossa coxae?
How many fused vertebrae are there?

A

Sacrum

S1-S5

102
Q

What small infused coccygeal vertebrae is refereed to as the “tailbone”?
How many fused vertebrae?

A

Coccyx/ Coccygeal Vertebrae
Co1-Co4
**Can fuse to the sacrum when older?

103
Q

What flat bone forms in the anterior midline of the thoracic wall?
aka: “breatbone”

A

Sternum

104
Q

What is the widest & most superior portion of the sternum?

*handle of sword

A

Manubrium

105
Q

What is the shallow superior indentation between the clavicular notches?

A

Supresternal (juglar) Notch

106
Q

What two notches articulate with the right and left clavicles?

A

Clavicular Notch

107
Q

What is the longest part of the sternum & forms its bulk?

*blade of sword

A

Body of Sternum

*gladiolus

108
Q

What is the inferiorly pointed projection of the sternum?

*tip of sword blade

A
Xiphoid Process
(xiphos=sword)
109
Q

What are elongated, curved, flattened bones that originate on or between the thoracic vertebrae and end in the anterior wall of the thorax?

A

Ribs (costae)

110
Q

What ribs connect individually to the sternum by separate costal cartilages?
Which are they?

A
  • True Ribs

- 1-7

111
Q

What rib’s costal cartilages do not attach directly to the sternum?
Which are they?

A
  • False Ribs

- 8-12

113
Q

What vertebrae forms the “small” region of the back & articulates superiorily w/ the saccrum?
How many are there?

A

Lumbar Vertebrae
L1-L5
*Note large size of centrum

114
Q

What is the bony framework of the chest called?

A

Thoracic Cage

115
Q

What part of the rib is at the end closest to the vertebral column, with which it articulates? It is marked by a kidney-shaped articular surface, divided by a horizontal crest into two facets (inferior/superior articular facet)

A

Rib feature: Head (Capitulum)

116
Q

What rib feature lies in between the head & tubercle?

A

Rib feature: Neck

117
Q

What rib feature has an articular facet for the costal facet on the transverse process of the thoracic vertebrae?

A

Rib Feature: Tubercle

118
Q

What rib feature curves anteriorly toward the sternum?

A

Rib Feature: Shaft (body)

119
Q

What ribs have no connection with the sternum?

Which are they?

A
  • Floating Ribs (False ribs)

- 11-12

120
Q

Where is the nasal lacrimal duct located that secretes tears?

A

Nasal lacrimal groove

121
Q

What rib feature marks the path of nerves & blood vessels to the thoraic wall along inferior internal border?

A

Rib Feature: Costal Groove

122
Q

What are the soft spots on a fetal skull called?

A

Fontanelles

Mastoid, posterior, anterior

123
Q

What rib feature connects true ribs individually to the sternum by separate cartilaginous extensions?

A

Rib Feature: Costal Cartilage