Surface Anatomy Flashcards
Frontal, parietal, occipital, temporal, auricular, orbital, nasal, infraorbital, zygomatic, buccal, oral, and mental regions
Regions of the head
What is the study of the structural relationships of the external features of the body to the internal organs and parts?
Surface anatomy
The _____ region of the head includes the forehead and the area superior to the eyes.
Frontal ridge
Just inferior to each eyebrow is the _________ ridge. Frontal notch.
Supraorbital ridge
The smooth elevated area between the eyebrows is the…
Glabella
The prominence of the forehead
Frontal eminence
Regions of the head covered by the scalp.
Parietal and occipital regions
The temple, the superficial side of the head posterior to each eye.
Temporal lobe
The ____ is composed of an auricle or oval flap of the ear and the external acoustic meatus.
External ear
A tube through which sound waves are transmitted to the middle ear within the skull.
External acoustic meatus
Fleshy protuberance of the ear lobe, inferior free margin of the auricle.
Lobule
White area of eyeball
Sclera
Behind each upper eyelid and deep within the orbit are…
Lacrimal glands
Delicate and thin membrane lining the inside of the eyelids and the front of the eyeball
Conjunctiva
Outer corners where the upper and lower eyelids meet
Lateral canthus
Lining of the tooth socket. Specialized connective tissue. 40-50% mineralized
Alveolar bone
Tissue of the tooth. Considered a supporting structure because it contains fibers extending to the periodontal ligament that hold the tooth in socket. 45% mineralized … Coats root, connective tissue.
Cementum
Surrounds root of tooth. Made of fibers that support and suspend the tooth in it’s connective tissue, not calcified. Made of connective tissue. Keeps tooth from pushing against bone during extreme pressure of chewing.
Periodontal ligaments
Epithelium that lies at the base of the gingival sulcus. Attaches to the surface of the tooth
Junctional epithelium
Center of development and calcification from which a tooth forms
Lobe
Remnants of lobe formation worn away by attrition shortly after eruption
Mamelon
Elevation on the crown of the tooth ex. Canines, premolars, molars
Cusp
Convex or rounded elevation or tubercle on the cervical third of the lingual surface
Cingulum
Linear elevation located around perimeter of the tooth
Marginal ridge
Linear elevation that crosses a surface
Transverse ridge
Linear elevation that forms a triangle
Triangular ridge
Linear elevation that transverses a surface on a diagonal.
Oblique ridge
Shallow rounded depression.
Fossa
Shallow depression, forms valley between two ridges and a cusp
Sulcus
Concavity in a surface that formed while tooth was developing
Developmental groove
Additional groves present in maxillary and mandibular third molars
Supplemental groove
Pinpoint of depression
Pit
Cephalic
The head
Caudal
The tail
Ispsilateral
Structures on the same side of the body
Contralateral
Structures on opposite sides