Surface Anatomy - Ch. 2

Front 1

Regions of the Head

Back 1

Include the frontal, parietal, occipital, temporal, orbital, nasal, infraorbital, zygomatic, buccal, oral, and mental regions.

Front 2

Frontal Region

Back 2

Includes the forehead and the area superior to the eyes.

Front 3

Supraorbital ridge

Back 3

Inferior to each eyebrow.
AKA superciliary ridge.

Front 4

Glabella

Back 4

Smooth elevated area between the eyebrows.

Front 5

Frontal Eminence

Back 5

Prominence of the forehead

Front 6

Parietal Region

Back 6

Region of the head that overlies the parietal bone and is covered by the scalp.

Front 7

Occipital Region

Back 7

Region of the head overlying the occipital bone and is covered by the scalp.

Front 8

Temporal Region

Back 8

Region of the head overlying the temporal bone, with the external ear being the prominent feature.

Front 9

Auricle

Back 9

Oval flap of the external ear

Front 10

External Acoustic Meatus

Back 10

Canal leading to the tympanic cavity.

Tube through which sound waves are transmitted to the middle ear within the skull.

Front 11

Helix

Back 11

The superior and posterior free margin of the auricle.

Ends inferiorly at the lobule.

Front 12

Tragus

Back 12

Portion of the auricle anterior to the external acoustic meatus and is a smaller flap of tissue.

Front 13

Antitragus

Back 13

Flap of tissue on the auricle which is opposite of the tragus.

Front 14

Intertragic Notch

Back 14

Deep notch between the tragus and the antitragus on the auricle (External Ear)

Front 15

Orbital Region

Back 15

Region of the head with the eyeball and all its supporting structures.

Front 16

Orbit

Back 16

Bony socket which contains all the supporting structures of the eye.

Front 17

Sclera

Back 17

The whites of the eyeball.

Front 18

Iris

Back 18

Central area of coloration on the eyeball.

Front 19

Pupil

Back 19

Opening in the center of the iris.

Front 20

Eyelids

Back 20

Upper and Lower
Movable
Covers and protects the eyeball.

Front 21

Lacrimal Gland

Back 21

behind each upper eyelid and within the orbit. Produces lacrimal fluid or tears.

Front 22

Conjunctiva

Back 22

Delicate and thin membrane lining the inside of the eyelids and the front of the eyeball.

Front 23

Lateral Canthus

Back 23

The outer corner where the upper and lower eyelids meet.

Front 24

Medial Canthus

Back 24

The inner angle of the eye.

Front 25

Nasal Region

Back 25

Region of the head where the main feature is the external nose.

Front 26

Root of the nose

Back 26

Located between the eyes.

Front 27

Nasion

Back 27

Midline junction between the nasal and frontal bones.
Inferior to the glabella.

Front 28

Bridge of the nose

Back 28

Formed by the bony structure inferior to the nasion.

Front 29

Apex of the nose

Back 29

tip of nasal region that is flexible and fromed from cartilage.

Front 30

Naris

Back 30

Located on each side of the nose inferior to the apex of the nose and creates a nostril.

Front 31

Nasal Septum

Back 31

Midline section that separated the nares.

Front 32

Ala

Back 32

Winglike cartilaginous structure which bounds the nares laterally.

Front 33

Infraorbital region

Back 33

Region of the head located inferior to the orbital region and lateral to the nasal region.

Front 34

Zygomatic region

Back 34

Region of the head lateral to the infraorbital region and inferior to the orbital region.

Front 35

Tempormandibular joint.

Back 35

Inferior to the zygomatic arch and anterior to the ear

Upper skull forms a joint with the lower jaw.

Front 36

Buccal region

Back 36

Region of the head that is composed of soft tissues on the cheek.

Front 37

Cheek

Back 37

Forms the side of the face and is a broad area of the face among the nose, mouth, and ears.

Front 38

Masseter Muscle

Back 38

Strong muscle which forms most of the upper cheek.