ANTH 102A Quiz 2

Coronal Suture

Between the frontal and the parietal bones

Sagittal Suture

Between the two parietal bones

Zygomaticomaxillary Suture

Between the zygomatic and maxilla

Frontonasal Suture

Between the nasal bones and the frontal bone

Metopic Suture

Unites the two halves of the frontal bone. Usually completely fuses by approx. 8 years old Retained in ~3% of adults

Lambdoidal Suture

Between the parietal and occipital bones. Sometimes there are extra bones along this suture: Wormian bones and Accessory ossicles.

Squamosal Suture

Located between the parietal and temporal bones

Spheno-occipital Synchondrosis

Between the occipital and sphenoid. Usually completely fused by 18 years.

Incisors

Humans have 2 in each quadrant. Most anterior teeth. Tooth has: ­Single Root, Flat and broad crown

Canine

Humans have 1 in each quadrant. Tooth has: ­Single root, ­Pointed crown

Premolars

Humans have 2 in each quadrant. ­Bicuspids. A tooth has: ­1 (mandibular) or 2 (maxillary) roots, ­Two cusps on crown.

Molars

Humans have 3 in each quadrant. Tooth has: ­2 (mandibular) or 3 (maxillary) roots, ­Crown has many cusps for grinding.

Hyoid

In the neck.

Greater Horn

Feature of the Hyoid

Lesser Horn

Feature of the Hyoid

Vertebrae

Cervical Vertebrae

Pictured in yellow, C1-C7.

Thoracic Vertebrae

Pictured in green, T1-T12. Chest vertebrae, Articulate with the ribs.

Lumbar Vertebrae

Pictured in red, L1-L5. Lack costal pit (thoracic) and transverse foramen (cervical). 5 total.

Vertebral Foramen

General feature of all three types of Vertebrae

Vertebral body

General feature of all three types of Vertebrae

Vertebral arch

General feature of all three types of Vertebrae

Pedicle

General feature of all three types of Vertebrae

Lamina

General feature of all three types of Vertebrae

Spinous process

General feature of all three types of Vertebrae

Transverse process

General feature of all three types of Vertebrae

Superior articular facets

General feature of all three types of Vertebrae

Inferior articular facets

General feature of all three types of Vertebrae

Atlas

Only vertebra with no vertebral body, C1.

Superior Articular Facets

Feature of the Altas (C1). Oval.

Inferior Articular Facets

Feature of the Altas (C1). Round.

Transverse Foramen

Feature of the Altas (C1).

Anterior Arch

Feature of the Altas (C1).

Axis

Has a projecting process that forms a pivot for the atlas for side-to-side movement. C2.

Dens

Feature of the axis

Superior Articular Facets

Feature of the axis

Transverse Foramen

Feature of the axis

Centrum

Feature of the axis

Inferior Articular Facet

Feature of the axis

Tuberculi

Feature of C3-C6 vertebrae

Transverse foramen

Feature of C3-C6 vertebrae

Centrum

Feature of C3-C6 vertebrae

Spinous Process

Feature of C3-C6 vertebrae

Costal foveae

Feature of Thoracic vertebrae. The result of articulation with the ribs

Thoracic Vertebra 12

Distinguish because Inferior Articular Facets face laterally, Like the lumbar vertebrae. T12

Spinous Process

Feature of the lumbar vertebrae

Superior Articular Facets

Feature of the lumbar vertebrae

Inferior Articular Facets

Feature of the lumbar vertebrae

Sternum

Manubrium

Feature of the Sternum

Corpus sterni ­

Feature of the Sternum, the body

Jugular Notch

Feature of the Sternum

Clavicular Notches

Feature of the Sternum

Sternal Angle

Feature of the Sternum, also called the Manubrio-sternal joint

Xiphoid process

Feature of the Sternum. Not ossified in younger individuals, ­Can vary in size and shape

Sternal aperture

Feature of the Sternum. High variation, and only present on some Sternums

Ribs

Head

General feature of the ribs

Neck

General feature of the ribs

Tubercle

General feature of the ribs

Costal Groove

General feature of the ribs, helps with siding. Grooves along the bottom

Shaft

General feature of the ribs, the body

Angle

General feature of the ribs

Sternal End

General feature of the ribs

First Rib

Scalene Tubercle

Feature of the first rib

Ribs 11 and 12

The floating ribs