OA test 3

OA test 3

Question Answer
These make up the bilaminar disk Epiblast and hypoblast
These make up the trilaminar Ectoderm, mesoderm, and endoderm
Mesoderm arises from this embryonic layer Ectoderm
Process where hormones stimulate the cell that produced them Autocrine
No cell membrane receptors cause this cellular outcome Cell death
The common innervation for 1st branchial arch V3
The common innervation for 2nd branchial arch VII
Posterior 1/3 mucosa of the tongue arises from this branchial arch Third arch (hyposomthin)
These attract water into the developing secondary plate Mucopolysaccharides
These direct the growth of the maxilla and mandible Secondary cartilage
Bone formation mechanisms that requires cartilage model Endochrondrial ossification
Bone formation that occurs between connective tissue layers Intramembraneous ossification
Osteoblasts synthesize these 2 components Collagen and proteoglycans
All blood cells arise from Hemocytoblasts
This cell gives rise to platelets Megakaryocyte
Active in the suppression of allergic reactions Eosinophils
This cells releases histamine and heparin Basophiles
This material increases nerve conduction rate Myelination
To continue work without adequate amounts of oxygen Oxygen debt
Gaps in a nerve cells myelination Nodes of ranveir
Skeletal muscle ability to use more fibers as work load increases Recruitment
The embryonic origin of enamel Ectoderm
The embryonic origin of Dentin and pulp Ectomesenchyme
Odontogenic stage characterized by proliferation Bud stage
Cells which give rise to preameloblasts Inner enamel epithelium
Function of the reduced enamel epithelium Protect the erupting tooth
The outer enamel epithelium cell shape Cuboidal
No present cells Cells die
Cell has couple receptors Cells survive
Cells have more receptors Cells proliferate
Cells still have more receptors Cells differentiate
Aptosis Programmed cell death
One group of cells starting the development of another induction
Proliferation More cells
Interstitial Occurs deep within a tissue
Appositional Addition "outer" layers cells
Implantation Til day 7
Amniotic cavity Fluid filled, next to epiblast
Yolk sac Provides nourishment until placenta is established. Next to hypoblast
Formed from migration of epiblast Mesenchymal cells
Complete migration Trilaminar disc
Epiblast to Ectoderm
Messenchymal to Mesoderm
Hypoblast to Endoderm
Common innervation of third arch IX, forms parts of hyoid contributes to tongue
Common innervation for 4th and 6th arch IX and X, larynx pharynx muscles and laryngeal cartilage
Anterior sensory 2/3 – V3
Taste 2/3, VII
Posterior 1/3 Glossopharyngeal
Arch 1 Mandibular, trigeminal V
Secondary palate formation starts at? 7th to 8th week , create separation between nasal and oral cavities
When does the tongue form? When does the tongue withdraw? Starts at 4 weeks… After the 7th week
Treacher collins syndrome Failure of neural crest cells to migrate to the facial region
Does meckels cartilage make contribution to the mandible? No
Where does condensation of messenchyme and bone formation start? Where inferior alveolar never bifurcates
Meckels cartilage The fate of cartilage. -malleus of the middle ear -spenomandibular ligament -resr of cartilage is completely resorbed
Condylar cartilage is converted through what Endochrondrial ossification
Coronoid cartilage provides for? The anterior border and superior most aspects of the coronoid process
How many major cellular compartments are there 7, nucleus, cytosol, endoplasmic reticulum, golgi complex, mitochondria, lysosomes, perioxisomes
Distribution center Golgi apparatus
Golgi apparatus functions Principle directors of macromolecules
Mitochondria function 1 glucose= 36 ATP, without these oxidation reactions, glycosis produce only 2 atp for 1 glucose
Primary lysosome Contains hydrolytic enzymes
Secondary lysosome Combines with a vacuole of vesicle
Intermediate filaments Most stable protein filaments
Desmosome Disc shaped spot weld between 2 cells
Hemidesmosome A connective tissue attachment between cellular and non cellular structures
Tumor of enamel, dentin, pulp and cementum Odontoma
Hertwigs epithelial root sheath Will determine size, shape, and number of roots.Roots completed; will disintegrate and become epithelial rests of malassez
Formation of dental tissues 1. Repolarization of preameloblasts 2.repolarization of odontoblast 3.odontoblast secrete collagenous matrix 4.ameloblasts secrete protein matrix
Stratified 2 or more cell layers , transitional:bladder
Unstratisfied Single layer, columnar:inner enamel epithelium
Can cartilage renew No
Mature osteoblasts Osteocytes
Processes from osteocytes Canaliculi
What is is plasma Albumin, globulin, fibrinogen. More plasma then formed elements
What is the majority of formed elements Red blood cells
What does hemoglobin contain 4 heme groups and 1 iron (Fe)
Mamelons Incisal edge evidence of fusion of adjacent lobes
Afferent? Efferent? Sensory. Motor
Solid rigid Bone
Fluid Blood and lymph
Solid Cartilage
Majority of lymphocytes T-lymphocytes . Cellular arm of the immune response
Granulomere Seratonin
Skeletal is.. smooth is.. cardiac is.. Voluntary, involuntary, involuntary
The daily process of the development of teeth Striae of retzius
Cementoblast, pdl, and bone forms what Cementum
What happens during apposition Cells put down matrix
What happens during maturation Mineralization of matrix
In the cap stage, what will become the future Dentin and pulp Dental papilla
Which stage occurs during the 9th and 10th week Cap,
Incisors and canines develop from 4 lobes
Mand first molars develop from 5 lobes
Max and mand second molars develop from 4 lobes
Initiation involves interaction between Ectoderm and mesenchymal tissues
The dental sac is Mesenchymal
The inner cells of the dental Papilla give rise to Pulp
The outer cells of the dental Papilla give rise to Dentin
The cementum arises from the Dental sac
Development of the stellate reticulum is from Desmosomes and glyocsaminoglycans

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