Axial Skeleton Flashcards Preview

5240 Intro to Biomed > Axial Skeleton > Flashcards

Flashcards in Axial Skeleton Deck (45):
1

How many bones are in the axial Skeleton?

80

2

How many bones are in the skull?

22

3

What is the nerocranium and vicerocranium?How many bones in each?

neurocranium is the cranial vault= 8 bones vicerocranium is the facial skeleton=14

4

What are the bones of the neurocranium?

Parietal (2) Temporal (2) Frontal (1) Sphenoid (1) Occipital (1) Ethmoid (1)

5

What are the bones of the Viscerocranium?

Maxilla (2) Zygomatic (2) Palatine (2) Lacrimal (2) Nasal (2) Inferior nasal concha (2) Mandible (1) Vomer (1)

6

What are the cranial Fossa?

Anterior, Middle, and Posterior.

7

What are the Auditory Ossicles?

Malleus (2) Incus(2) Stapes(2) -----> Lateral to medial MIS

8

WHat is the Pterion?

Area where all three sutures come together (temple).

9

What are the bones that make up the orbit?

Frontal bone Lacrimal bone Maxilla Ethmoid Sphenoid Palatine bone Zygomatic bone

10

What are the occipital Bone Faramin?

Hypoglossal canal Occipital (condylar) canal Foramen magnum Jugular foramen

11

what are the occipital bone landmarks?

External Occipital Protuporence External occipital crest Occipital condyles

12

What are the parietal bone landmarks?

Superior Temporal Line, Inferior Temporal Line

13

What are the frontal bone foramin?

Supraorbital Foramen subrorbital notch. Could have either or both

14

Temportal Bone Landmarks?

Zygomatic process (part of zygomatic arch) Mandibular (glenoid) fossa Mastoid Process Styloid Process

15

What are the temporal bone foramen?

Foramen Lacerum, External Acoustic (auditory) Meatus (canal), Internal Acoustic (auditory) Meatus (canal, Carotid Canal, Stylomastoid Foramen.

16

what are the Spenoidal landmarks?

Lesser Wing, Greater Wing, Sella Turcica, Hypophyseal Fossa (in the sella turcica), Sphenoidal Sinus (right below the hypophyseal fossa), Pterygoid Fossa, Medial,Lateral Pterygoid Plates, Ptergoid Hamulus (on medial plate)

17

What are the Sphenoidal Foramen?

Foramen Ovale, Foramen Spinosum, Foramen Lacerum, Optic Canal, Foramen Rotundum, Interior Orbital Fissure

18

What are the Ethmoidal landmarks?

Crista galli Superior nasal conchae Middle nasal conchae Perpendicular plate Cribriform plate

19

Ethmoidal Foramen?

Olfactory Foramina (little holes next to Crista Galli)

20

What is the nasal septum comprised of?

Perpendicular plate of ethmoid bone Vomer bone Cartilage of septum Crest of maxillary bone Crest of palatine bone

21

WHat are the Maxillary landmarks?

Alveolar processes and margin Anterior nasal spine Palatine process (of hard palate) Maxillary tuberosity Maxillary sinus

22

What are the Maxillary Foramen?

Infra-orbital foramen and canal Nasolacrimal canal (groove) Incisive fossa and canal

23

What are the Palatine bone landmarks?

Horizontal plate (of the hard palate)

24

What are the palantine bone foramen?

Greater and lesser Palatine foramen, Choanae

25

What is the hard palate comprised of? Structures?

Palatine process of maxilla Horizontal plates of palatine bone Transverse palatine suture Median palatine suture (Intermaxillary suture, Interpalatine suture)

26

Zygomatic bone landmarks?

Temporal process.

27

What are the Mandibular landmarks?

Body Angle Ramus Coronoid process Condylar process (head and neck) Mandibular (sigmoid) notch Alveolar processes and margin Lingula of Mandible

28

Mandibular Foramen?

Mandibular foramen (mandibular canal), Mental Foramen

29

How many cervial, thoracic, lumbar bones?

7, 12,5.

30

How many Sacrum bones? How many Coccyx bones?

5 sacrum fused bones, 3-5 fused coccyx bones.

31

What is special about the cervical vertebrae?

The Transverse Foramina

32

Where is the atlas located? What landmarks?

First cervical vertebrae. 1. Anteror and posterior tubercles 2. Lateral Masses

33

Where is the axis? Landmarks?

Underneath the Atlas. has the Odontoid process (dens), which the Atlas sits and rotates around.

34

Where is the vertebral prominens?

on C7 and is the transition to thoracic certebrae

35

Thoracic vertebrae have what landmarks?

Costal Facets for the ribs

36

What are the parts of the Sacrum?

Base, Apex, Median sacral Crest, Posterior sacral foramina.

37

What are the parts of the intervertabral discs?

Annulus Fribrosus (outer ring) 2. Nucleus pulposus (inner jelly substance).

38

How many ribs are there? Pairs of ribs? True, False, Floating?

24 total, 12 pairs. 7 pair true, 5 pair false, 2 par floating.

39

What is the costal cartilage?

Cartilage holding ribs to sternum.

40

What are the parts of the Sternum?

A.Manubrium (level T4)

B.Jugular (suprasternal) notch (T2)

C.Body

D.Costal notch

E.Xiphoid process (T9)

41

Q image thumb

A.Parietal (2)

B.Temporal (2)

C.Frontal (1)

D.Sphenoid (1)

E.Occipital (1)

F.Ethmoid (1)

42

Q image thumb

A.Vertebral body

B.Vertebral arch

a.Pedicle

b.Lamina

C.Superior articular process/facet

D.Inferior articular process/facet

E.Transverse process

F.Spinous process

43

Atlas Bone

Q image thumb

A.Anterior and posterior tubercles

B.Lateral masses

44

Q image thumb

a. Odontoid Process or dens

45