Practical 3

Question 1

Nasal Bones

Answer 1

form bridge of nose.

Question 2

Ethmoid Bone

Answer 2

Cribiform Plate &Crista Galli

Question 3

Crista Galli

Answer 3

cock’s comb. Vertical projection, point of attachment for dura matter.

Question 4

Cribiform Plate

Answer 4

bony plates lateral to crista galli

Question 5

Vomer Bone

Answer 5

Blade shaped bone. forms posterior/ inferior nasal septum

Question 6

Palatine Bones

Answer 6

paired bones posterior to palatine processes. forms posterior hard palate and part of orbit. meet at median palatine process

Question 7

Hyoid Bone

Answer 7

Located in the throat above larynx. Horseshoe shaped. Point of attachment for tongue/ neck muscles.

Question 8

Sphenoid Bone

Answer 8

Keystone of cranium. superior orbital fissure,greater/lesser wings, sella turcica, optic fissue (canal)

Question 9

Superior Orbital Fissures

Answer 9

jagged openings in orbit. provides passage for cranial nerves III, IV, V, and VI.

Question 10

Greater Wings

Answer 10

Larger portion of sphenoid bone exteriorly anterior to temporal. forms part of eye orbit.

Question 11

Lesser Wings

Answer 11

Bat shaped portion of sphenoid anterior to sella turcica

Question 12

Sella Turcica

Answer 12

Turk’s Saddle. saddle shaped region in sphenoid midline.

Question 13

Optic Foramen

Answer 13

circular hole through which optic nerve passes.

Question 14

Lacrimal Bone

Answer 14

fingernail sized bone. forms medial orbit walls between maxilla and ethmoid

Question 15

Coronal Suture

Answer 15

Point of articulation of parietal bones with the frontal bone

Question 16

Sagittal Suture

Answer 16

Mid-line articulation point of the two parietal bones

Question 17

Squamosal Suture

Answer 17

Point of articulation of the temporal bone with the parietal bone.

Question 18

Lambdoidal Suture

Answer 18

Point of articulation of the occipital bone and the parietal bones.

Question 19

Anterior Fontanelle

Answer 19

Soft stop on top of skull. just forward of center.

Question 20

Posterior Fontanelle

Answer 20

soft spot on the back of the skull

Question 21

Vertebrae

Answer 21

24 single bones &2 fused. Makes up vertebral column.

Question 22

Body of vertebrae

Answer 22

AKA Centrum. Rounded central portion of vertebrae. faces anteriorly in human vertebral column.

Question 23

Sphenoidal Fontanelle

Answer 23

soft spot near temporal bone

Question 24

Mastoid Fontanelle

Answer 24

soft spot between temporal and occipital bones

Question 25

Vertebral Foramen

Answer 25

Opening enclosed by the body and vertebral arch. Passageway for spinal cord.

Question 26

Transverse Processes

Answer 26

Two lateral projections from vertebral arch

Question 27

Spinous Process

Answer 27

Single medial and posterior projection from vertebral arch.

Question 28

Lamina

Answer 28

connects transverse and spinous processes

Question 29

Pedicle

Answer 29

protrudes off body to become superior articular facet

Question 30

Superior Articular Surfaces

Answer 30

Allows for articulation with vertebra above

Question 31

Inferior Articular Surface

Answer 31

Allows for articulation with vertebra below

Question 32

Cervical Vertebra

Answer 32

Upper most 7 vertebrae. Include axis and atlas

Question 33

Transverse Foramen

Answer 33

Holes in transverse process in cervical vertebra

Question 34

Atlas

Answer 34

C1. No body. Lateral processes contain large concave depressions that receive occipital condyles of skull. "Yes" movement.

Question 35

Axis

Answer 35

C2. Pivot for rotation of axis. "No" movement.

Question 36

Dens/Odontoid Process

Answer 36

Pivot point for rotation of axis.

Question 37

Thoracic Vertebra

Answer 37

12 vertebra below cervical. Articulate with ribs.

Question 38

Costal Facets

Answer 38

Articulate with the head of the rib.

Question 39

Lumbar Vertebra

Answer 39

5 below thoracic. Lower back

Question 40

Sacrum

Answer 40

5 fused vertebra. Below Lumbar.

Question 41

Apex

Answer 41

Articulate with coccyx

Question 42

Sacral Promontory

Answer 42

Top of sacrum. articulates with lumbar.

Question 43

Median Sacral Crest

Answer 43

Dorsal side. bumps on midline that would be spinus process if not fused.

Question 44

Lateral Sacral Crest

Answer 44

Dorsal side. Bumps off midline that would be transverse processes if not fused.

Question 45

Coccyx

Answer 45

3-5 vertebrae. articulate with sacrum

Question 46

Sternum

Answer 46

Breastbone

Question 47

Manubrium

Answer 47

Uppermost part of sternum. Looks like knot of tie

Question 48

Clavicular Notches

Answer 48

Point of articulation between the sternum and clavicle

Question 49

Gladiolus

Answer 49

Body of sternum

Question 50

Xiphoid Process

Answer 50

inferior end of sternum

Question 51

Ribs

Answer 51

24. 1-7 true, 8-12 false.

Question 52

Head

Answer 52

Articulates with costal facets

Question 53

Neck

Answer 53

Between head and Articular Tubercle