Embryology Face Quiz - lecture slides

<p>At 24-26 days (B)</p> Signup and view all the answers

<p>Development of the spinal cord (C)</p> Signup and view all the answers

<p>Tuberculum impar and lateral lingual swellings (D)</p> Signup and view all the answers

<p>Tuberculum impar (D)</p> Signup and view all the answers

<p>Separates the tongue from the pharyngeal arches (B)</p> Signup and view all the answers

<p>Both neural and alveolar portions (C)</p> Signup and view all the answers

<p>Supports growth of the alveolar bone (B)</p> Signup and view all the answers

<p>Fusion of the tongue to the mouth (C)</p> Signup and view all the answers

<p>Frontonasal prominence and medial nasal prominences (C)</p> Signup and view all the answers

<p>Weeks 4-6 (C)</p> Signup and view all the answers

<p>Maxillary prominences and frontonasal prominence (A)</p> Signup and view all the answers

<p>The developing tongue (C)</p> Signup and view all the answers

<p>Two (C)</p> Signup and view all the answers

<p>Frontonasal and medial nasal prominences (D)</p> Signup and view all the answers

<p>Forehead and nasal structures (C)</p> Signup and view all the answers

<p>Failure of fusion of the two medial nasal processes (D)</p> Signup and view all the answers

<p>Increased risk for periodontal disease (A)</p> Signup and view all the answers

<p>Cleft lip and palate (CLP) (B)</p> Signup and view all the answers

<p>Identification and treatment initiated at a young age (D)</p> Signup and view all the answers

<p>Initial presentation of the cleft lip (B)</p> Signup and view all the answers

<p>Cleft palate (CP) (A)</p> Signup and view all the answers

<p>Can be incomplete or complete in each case (A)</p> Signup and view all the answers

<p>Multi-disciplinary teams starting treatment very young (A)</p> Signup and view all the answers

<p>Incomplete cleft does not involve the soft palate (B)</p> Signup and view all the answers

<p>It protects the brain during development. (B)</p> Signup and view all the answers

<p>6-7 years (A)</p> Signup and view all the answers

<p>Neural crest cells and mesoderm (C)</p> Signup and view all the answers

<p>Facial bones (D)</p> Signup and view all the answers

<p>A focus on the growth of the fetus (B)</p> Signup and view all the answers

<p>Maturation and development of already formed structures (B)</p> Signup and view all the answers

<p>It connects the skull to the vertebral column. (C)</p> Signup and view all the answers

<p>Development is segmented and occurs through distinct phases. (C)</p> Signup and view all the answers

<p>3rd pharyngeal arch (B)</p> Signup and view all the answers

<p>Cellular apoptosis (A)</p> Signup and view all the answers

<p>Week 7 (C)</p> Signup and view all the answers

<p>Nasal septum (D)</p> Signup and view all the answers

<p>Fusion site of palatine shelves (A)</p> Signup and view all the answers

<p>Anterior 2/3 (D)</p> Signup and view all the answers

<p>Growth of palatine shelves (B)</p> Signup and view all the answers

<p>Incisive foramen (B)</p> Signup and view all the answers

<p>They fuse to form a barrier between oral and nasal cavities. (D)</p> Signup and view all the answers

<p>Formation of clefts (A)</p> Signup and view all the answers

Specialized cells that migrate and differentiate into various structures in the head, face, and oral cavity, including cranial nerves, peripheral nerves, and connective tissues.

Derived from neural crest cells, ectomesenchyme forms connective tissues of the head, face, and oral cavity, including the dentin, pulp, and cementum.

The primitive mouth, a region that will later form the oral cavity.

A membrane separating the developing stomodeum from the primitive gut in the embryo.

The buccopharyngeal membrane ruptures around days 24-26 of development.

The tongue forms from the 1st, 2nd, and 4th pharyngeal arches.

Developed from two lateral lingual swellings (1st arch) and tuberculum impar (2nd arch).

Developed primarily from the copula/hypobranchial eminence.

Apoptosis (cell death) allows the tongue to separate from the mouth floor, leaving the frenulum.

Maxilla and mandible jaws ossify (become bone), developing neural and alveolar portions to support teeth.

Secondary cartilages support alveolar bone growth.

The five main structures that fuse to form the face: frontonasal, two maxillary, and two mandibular prominences.

The upper most prominence, located in the center of the face. It gives rise to the forehead, nose bridge, and philtrum.

Two prominences located on either side of the face. They contribute to the cheeks, upper jaw, and upper lip.

Two prominences located at the bottom of the face. They form the lower jaw and chin.

The first part of the palate to form, consisting of the fused frontonasal and medial nasal prominences.

The developing tongue fills the majority of the oral cavity, leaving limited space for the forming of the secondary palate. Therefore, the primary palate, which requires less space, develops first.

The frontonasal prominence and medial nasal prominences fuse together to form the primary palate.

A birth defect where the upper lip doesn't fully fuse during pregnancy.

A birth defect where the roof of the mouth (palate) doesn't fully join together during pregnancy.

A birth defect where both the upper lip and the roof of the mouth don't fully fuse together.

A cleft lip or palate that affects only one side of the face.

A cleft lip or palate that affects both sides of the face.

A cleft lip or palate that doesn't completely extend through the lip or palate.

A cleft lip or palate that extends completely through the lip or palate.

Identifying cleft lip and palate at an early stage.

A group of specialists working together to treat patients with cleft lip and palate.

The top part of the skull that protects the brain. It's made up of several bones that fuse together as a child grows.

The bottom part of the skull, forming the base of the brain and connecting to the spine.

The bones that make up the face, including the cheekbones, nose, and jaw.

Special cells in the embryo that develop into many structures in the head and face, including skull bones.

The period after the 8th week of pregnancy when the fetus grows and matures, focusing on development of existing structures.

The cranial vault bones don't fully fuse until about 6-7 years old to allow space for the growing brain.

The fetal development phase starts emphasizing growth and maturation of existing structures.

The skull develops in 3 sections: the cranial vault (brain case), cranial base, and facial bones.

The secondary palate develops from the palatine shelves growing around the tongue and fusing together at the midline with the primary palate and nasal septum. The tongue retracts, creating space for the fusion.

The incisive foramen is a small opening at the midline of the palate, formed between the primary and secondary palates during development.

The tongue develops from different pharyngeal arches. The anterior 2/3 of the tongue is formed from the 1st and 2nd arches, while the posterior 1/3 is formed from the 4th arch.

Two swellings from the first pharyngeal arch that contribute to the anterior 2/3 of the tongue.

A small bump from the second pharyngeal arch that contributes to the anterior 2/3 of the tongue.

This structure from the 4th pharyngeal arch forms the posterior 1/3 of the tongue.

The tongue separates from the floor of the mouth through a process called apoptosis (programmed cell death), leaving a frenulum for attachment.

The thin membrane that attaches the tongue to the floor of the mouth, remaining after separation during development.

If the process of tongue development is disrupted, it can lead to abnormalities in the tongue, affecting speech, swallowing, and overall oral function.

Apoptosis, or programmed cell death, plays a crucial role in allowing the tongue to separate from the floor of the mouth.