Fichas de aprendizaje Embryology Midterm | Quizlet

Which of the following facial feature is located laterally to each naris?

Which of the following facial feature is located laterally to each naris?

nasal ala

The lips are outlined from the surrounding skin by a transition area called the?

Mucocutaneous Junction

Which of the following structures can be palpated in the anterior midline of the neck?

thyroid cartilage

Which of the following statements concerning the zygomatic arch is correct?

It overlies the mandible

One of the muscles forming the cheek is the strong _______ mucles, which is felt when a patient clenches the teeth together?

Masseter

Just inferior to the zygomatic arch and just anterior to the external ear is the

Temporomandibular joint

The ________ salivary gland is located irregularly from teh zygomatic arch down to the posterior border of the lower jaw

Parotid

The _______ extends from just below the lateral margin of the eye toward the middle part of the external ear

Zygomatic arch

The main feature of the _______ region of the face is the external nose

Nasal

Which of the following orofacial structures is located in the midline of the face or neck?

Philtrum

The _____ region includes the forehead and area above the eyes

Frontal

Which of the following may be involved in the disruption of the vermilion zone and may make it hard to determine the exact location of its mucocutaneous junction between the lips and the surrounding skin?

Scar tissue

The _______ region of the face is composed of the soft tissue of the cheek

Buccal

To palpate the lower jaw moving at the temporomandibular joint on a patient, a finger is placed onth the external ear canal during:

Movement

The chin is the major feature of the ______ region of the face

Mental

The ______ gland, an endocrine gland, can be palpated within the midline cervical area.

Thyroid

The large strap muscle, the _______ muscle, is located on each side of the neck.

Sternocleidomastoid

The regions of the face include the frontal, ______, nasal, infraorbital, zygomatic, buccal, oral and mental regions

Orbital

The _______ are separated by the midline nasal septum

Nares

What part of the mandible extends upward and backward from the body of the mandible on each side?

Ramus

The lips are fleshy folds that mark the gateway of the _____ cavity proper

Oral

The sharp angle of the lower jaw inferior to the earlobe is termed the angle of the

Mandible

Between the vermilion zone and the inner oral cavity is the

Intermediate zone

Which of the following orofacial structures contributes to the prominence of the neck that is also called the "Adam's apple"?

Thyroid cartilage

The philtrum terminates in a thicker area of the midline of the upper lip, the ______ of the upper lip

Tubercle

A midline depression on the dorsal surface of the tongue is called the:

median lingual sulcus

Adult teeth, or _____ teeth, also include all the same teeth as the primary teeth as well as premolars.

permanent

Each body of the maxilla is superior to the teeth and contains the _____ sinuses.

maxillary

Just distal to the last tooth of the maxillary arch is a tissue-covered elevation of the bone called the:

maxillary tuberosity.

On which of the following orofacial tissue is the linea alba located?

Buccal mucosa

Surrounding the teeth in the alveoli and covering the alveolar processes is the _____, which is composed of a firm pink tissue.

gingiva

The _____ is a white ridge of raised callused tissue that extends horizontally at the level where the maxillary and mandibular teeth come together and occlude.

linea alba

The facial part of the alveolus of the ____, the vertically placed eminence, is especially prominent on the maxilla.

canine

The line of demarcation between the attached gingiva and the alveolar mucosa is the:

mucogingival junction.

The oral tissue closest to the inner cheek is best described as:

buccal

The outermost layer of the root is composed of:

cementum

The pink labial mucosa or buccal mucosa meets the redder _____ at the mucobuccal fold.

alveolar mucosa

The root of the mature and fully erupted tooth is composed of:

dentin, pulp, and cementum

The structures closest to the lips are termed _____ or labial.

facial

What are the small, elevated structures of specialized mucosa located on the dorsal surfaces of the tongue, some of which are associated with taste buds?

Lingual papilla

What is the midline ridge of tissue on the hard palate?

Median palatine raphe

What is the small bulge of tissue at the most anterior part of the hard palate?

Incisive papilla

Which of the following folds or grooves of tissue are located on the floor of the mouth?

Sublingual folds

Which of the following lingual papillae are located on the lateral surface of the tongue?

Foliate papillae

Which of the following oral landmarks may be noted on the soft palate?

Uvula

Which of the following oral landmarks separates the base from the body of the tongue?

Sulcus terminalis

Which of the following orofacial structures contains the alveolus of a tooth?

Alveolar process

Which of the following statements concerning Fordyce spots is correct?

Composed of sebum from sebaceous tissue

Which of the following structures is never visible in any part on a dental intraoral examination?

Laryngopharynx

Which of the following structures protects the opening of the parotid duct of its salivary gland?

Parotid papilla

What exact cells or structures develop from neuroectoderm and migrate from the neural folds to then join mesoderm to form mesenchyme during the third week of prenatal development?

Neural crest cells

Found in early prenatal development, the neural tube will form in the future which of the following structures?

Spinal cord

During prenatal development, the oropharyngeal membrane of the embryo:

is located superior to the first branchial arch

What is the exact term for the process that affords the development of specific tissue structure or differing form due to embryonic cell migration and inductive interactions?

Morphogenesis

What exact cells are localized to the neural plate of the embryo during the third week of prenatal development?

Neuroectoderm

Which of the following statements concerning prenatal development is correct?

Initiation of embryonic layers occurs during the first week

The folding of the embryo during prenatal development causes _____ to be on the _____.

endoderm; inside of the embryo

In which of the following do the final stages of meiosis occur during prenatal development?

Ovum

What best characterizes the first week of prenatal development so that the blastocyst splits into smaller and more numerous cells?

Mitotic cleavage

Implantation of the zygote may also occur outside the uterus during prenatal development with a(n):

ectopic pregnancy

During which week of prenatal development does the neural plate differentiate?

Third week

How many X-type chromosomes are necessary for the embryo to become of the female gender when present during prenatal development?

Two

Which of the following tissues listed will develop from the ectoderm layer of the embryo during prenatal development?

Epidermis

The primitive streak forms in the embryonic disc during prenatal development, causing:

bilateral symmetry.

From which embryonic layer is mesoderm derived during prenatal development?

Epiblast layer

A prenatal diagnostic procedure to detect chromosomal abnormalities is:

amniocentesis

How many pairs of somites form the cuboidal segments of mesoderm within the embryo during the third week of prenatal development?

38

When does the blastocyte stop traveling and undergo implantation during prenatal development?

First week

The neural crest cells migrate from which embryonic structures during prenatal development?

Neural folds

If there is failure of migration of the neural crest cells to the facial region during prenatal development, _____ can develop in the embryo.

Treacher Collins syndrome

Which period of prenatal development is characterized by increased cellular differentiation?

Preimplantation period

Which of the following can occur that mainly involves the abnormal development of one or more structures from ectoderm within the embryonic period?

Ectodermal dysplasia

What is the prenatal organ that joins the pregnant woman and the developing embryo during the second week of prenatal development?

Placenta

By the end of the first week of prenatal development, the blastula stops traveling and undergoes:

implantation

Which of the following structures initially forms during the third week of prenatal development?

Primitive streak

Which of the following tissue usually uses both interstitial and appositional growth to attain its final size?

Cartilage

When do the paranasal sinuses develop during prenatal development?

Fetal period and after birth

How many processes are considered major during facial development so that they become the centers of growth for the face?

Five

The anterior part of the foregut and will form the primitive pharynx and the foregut is originally derived from the:

endoderm embryonic cell layeR

The fusion of the maxillary and medial nasal processes to form the upper lip is completed during the end of the _____ week of prenatal development, when the grooves between the processes are obliterated.

seventh

The philtrum of the upper lip forms during sixth week of prenatal development from the:

medial nasal processes.

Which of the following facial structures is formed from the mandibular arch during prenatal development?

Lower face

The facial development that starts in the fourth week will be completed later in the _____ week within the fetal period.

twelfth

When the second branchial groove occasionally does not become obliterated, it has parts that remain after cervical development and can form a:

branchial cleft cyst.

The developmental disturbance of cleft lip is more commonly found:

in males

In which week of prenatal development does facial development begin in the embryo?

Fourth

Which of the following marks the end of the major growth of the lower two thirds of the face?

The eruption of the permanent third molars, which occurs at approximately 17 to 21 years of age.

What is the first event in the development of the face during the later part of the fourth week of prenatal development?

Disintegration of the oropharyngeal membrane

Which of the following phrases concerning the second branchial arch during prenatal development is correct?

Contains Reichert cartilage

What does the maxillary process form from during the fourth week of prenatal development?

Mandibular arch

The development of the neck parallels the development of the face over time, beginning during the fourth week of prenatal development within the embryonic period and completed during the _____ period.

fetal

The maxillary processes on each side of the developing face partially fuse with the mandibular arch on each side to create the:

labial commissures

Which of the following statements concerning facial development is correct?

All three embryonic layers are involved in facial development

The _____ are rounded areas of specialized, thickened ectoderm found at the location of developing special sense organs.

placodes

The frontonasal process is a swelling that appears over the developing brain in the embryo during prenatal development and forms the future:

forehead

The medial nasal processes are involved directly in the formation of the embryo's _____ of the nose during prenatal development.

bridge

The mandibular arch during the embryonic period of prenatal development is the:

fusion of the two paired mandibular processes.

From which structure during prenatal development is the palatine tonsillar tissue derived?

Second pharyngeal pouches

Which of the following is not part of the developing branchial apparatus during cervical development?

Branchial cleft cysts

A type of cleft lip can result during prenatal development from the lack of fusion between _____ processes.

medial nasal and maxillary