DEVELOPMENT OF THE FACE

• STOMODEUM

  depression in the ectoderm
• BUCOPHARYNGEAL MEMBRANE


  floor of the depression
• 4th week


  when did stomodeum communicates with foregut?
• EMBRYONIC STEM CELLS

  cells that give rise to new individual
• ECTODERM, MESODERM, ENDODERM


  what are the three germ layers?
• ECTODERM

  it migrates between two layers forming mesoderm
• GERM LAYERS


  its is the beginning of all adult structures
• ENDODERM


  layer that lines digestrive tract
• MESODERM


  it forms the muscle, blood vessels, skeleton
• ECTODERM


  skin
• NEUROECTODERM


  forms the nervous system
• NEURAL CREST CELLS


  it forms the peripheral nerves, adrenal medulla, tissues of the face
• ECTODERM

  forms epidermis including sweat glands and hair follicle
• ECTODERM


  this layer forms the cornea and lens of the eye, nervous system, tooth enamel, sencory receptors in epidermis, epithelial lining of mouth and anus, adrenal medulla, epithelium of pineal and pituitary glands
• MESODERM


  this layer contains notochord, forms skeletal, muscular system, muscular layer of stomach and intestine, excretory system, circulatory system and lymphatic, reproductive system, dermis of skin, lining of body cavity and adrenal cortex
• ENDODERM


  this layer forms epithelial lining of digestive tract, epithelial lining of respiratory system, lining of urethra, urinary bladder, and reproductive system, forms the liver, pancreas, thymus, and thyroid and parathyroid glands
• NEURAL PLATE


  face of the embryo is represented by______ cranially?
• PERICARDIUM


  face of the embryo bounded by ______ caudally?
• MANDIBULAR PROCESS


  what process bounded the side of the face of embryo
• Median Frontonasal Process

  2 Maxillary Process

  2 Mandibular Process


  what are the 5 building blocks from which face is constructed?
• FROTONASAL PROCESS

  MAXILLARY PROCESS

  MANDIBULAR PROCESS


  what are the processes fused together forming the face?
• FROTONASAL PROCESS


  proliferation of mesenchyme on the ventral surface of the developing brains, it grows toward stomodeum
• MAXILLARY PROCESS


  grows out from the upper end of each 1st arch and passes medially, forming the lower border of developing orbit
• OLFACTORY PITS


  its the depression in the lower edge of the advancing frontonasal process
• MEDIAL NASAL PROCESS

  2 LATERAL NASAL PROCESSES

  frontonasal process divided by olfactory pits forming?
• 2nd month


  when do processes united to form the face
• UPPER LIP


  it is formed by growth medially of maxillary process fusing with medial nasal process
• MAXILLARY PROCESS


  forms the lateral parts of upper lip
• PHILTRUM

  formed by medial nasal process with maxillary processes
• MANDIBULAR PROCESS
• STOMODEUM


  mandibular process grow medially forming lower lip, below ______
• LABIOGINGIVAL LAMINA


  linear thickening of ectoderm separates lips from its gums
• FRENULUM


  remnant at the midline
• OPTHALMIC DIVISION


  nerve that supplies skin overlying the frontonasal processes and its derivatives
• MAXILLARY DIVISION


  nerve that supplies skin overlying the maxillary process
• MANDIBULAR DIVISION


  nerve that supplies skin overlying the mandibular process
• MESENCHYME OF 2ND PHARYNGEAL ARCH


  where do facial expressions derevided?
• FACIAL NERVE


  nerve supply of 2nd pharyngeal arch
• CLEFT UPPER LIP


  confinded to the lip or may be associated w/ a cleft palate
• CLEFT UPPER LIP


  caused by failure of the maxillary process to fuce with medial nasal process