nagewodi's version from 2015-10-10 14:25

The most that you "love" questions about eruption schedule

At the folowing ageWich teeth/tooth are present/presents
0-6 monthsno primary teeth (teeth present at this stage are either premature primary teeth or natal teeth which are sometimes referred to as “pre-primary” teeth that will exfoliate soon after birth, as these teeth have almost no root structure.
6-12 months4 primary teeth (begin primary dentition)
8-13 months6 primary teeth
13-19 months12 primary teeth
16-23 months16 primary teeth
2.5-3 years20 primary teeth (complete primary dentition)
6-7 years20 primary teeth, 4 permanent teeth (begin mixed dentition)
6-8 years16 primary teeth, 8 permanent teeth
7-9 years12 primary teeth, 12 permanent teeth
9-11 years8 primary teeth, 16 permanent teeth
10-12 years4 primary teeth, 20 permanent teeth (end mix dentition)
11-12 years0 primary teeth, 24 permanent teeth (begin permanent dentition)
12-13 years0 primary teeth, 28 permanent teeth
17-22 years0 primary teeth, 32 permanent teeth (complete permanent dentition)

3 main classes of articulations based on the amount of motion they allow

Synarthrosisimmovable joint; sutures between the flat bones of the skull. Ex: gomphosis. (Fibrous joints)
Amphiarthrosisslightly movable joint (cartilaginous joint)
Diarthrosisfreely movable joint (synovial joint)

Joint classification on the basis of their structural features

Fibrous joints (synathroses)SUTURES and SYNDESMOSES(connected by fibrous connective tissue, and occur as the inferior tibiofibular and tympanostapedial sundesmoses)
Cartilaginous joints (amphiarthrosis)SYNCHONDROSES(primary cartilaginous joints; permit no movement but growth in the length of the bone),SYMPHYSES (secondary cartilaginous joints; slightly movable joints)
Synovial joints (diarthrodial)permit a great degree of free movement
Synovial jointsgliding, hinge, pivot, saddle, ball-and-socket


Question Answer
Orbital plate of the ethmoid bonelamina papyracea
Intramembranous bone grows byapposition only!
Enchondral bone grows byappositional and interstitial grows
Glycoproteins are assembled for extracellular use inGA
The ____ supplies parasympathetic fibers to ascending and transverse colon, while the descending and sigmoid colon with rectum and anus are supplied by the ____vagus nerve; pelvic splanchnic nerves
If hamulus were fractured the action of this muscle would be affectedtensor veli palati (because it insertion is there)
All the paired skeletal muscle of the soft palate are innervated by ____ execept___ which is innervated by___pharyngeal plexus; tensor veli palati; nerve to the medial pterygoid
Myosin has 2 componentslight meromyosin (makes up the backbone of myosin) and the heavy meromyosin (forms the lateral cross-bridges)
Ansa cervicalis is formed byC1, C2, C3
Geniohyoid and thyrohyoid muscle are innervated byC1
Tributaries of coronary sinus aresmall cardiac vein, middle cardiac vein and the greater cardiac vein
Oblique vein isa remnant of the embryonic left superior vena cava
The artery most involved in coronary occlusion isanterior interventricular artery (branch of of LCA)
Papillary muscle are found only in ___ while pectinate muscle are found in___ventricles; right atrium
The origin of pectinate muscle is atcrista terminalis
Rathke's pouch will give rise toadenohypophysis
Nutrients important for thymic hormones areZn(!), vit.B6, vit.C
Thymosin isa thymic hormone which stimulates the maturation of lymphocytes in other lymphatic organs
Meibomian glands aresebaceous glands in the rim of the eyelid, that protect the eye from drying out
All of the major salivary glands are classified astubuloalveolar
The storage form of T3, T4 isthyroglobulin and iodine
The major active form of thyroid hormones isT3
Neurohypophysis consists ofabout 10.000 unmyelinated axons
ADH and oxytocin are stored inHerring bodies
The single most important tract concerned with skilled voluntary activitycorticospinal tract
The limbic system is referred to asthe emotional brain
Oligodendrocytes formmyelin sheath in PNS
Microglial cells areresident immune cells of CNS (like macrophages)
Medulla controls activities such ascoughing, gagging, vomiting
Thalamus isa great relay station on the afferent sensory pathway to the cerebral cortex
Cilliary, pterygopalatine, submandibular, otic ganglion -all areparasympathetic ganglions
Fibers that are insulated with myelinA-alfa, A- beta, A-delta
Fibers that are not insulated with myelinC fibers
Greater splanchnic nerve formed fromT5-T9 (ends in celiac ganglion)
Lesser splanchnic nerve formed fromT10-T11 (ends in aorticorenal ganglion)
Least splanchnic nerve arises fromthe last thoracic ganglion (ends in the renal plexus)
The only muscle supplied by glossopharyngeal n.stylopharyngeus muscle
Lumbar plexus is formed by ____, and the main branches areL1-L4; femoral and obturator nerves
Sacral plexus is formed by___, the main branch isL4-L5 and S1-S4; sciatic
Geniohyoid and thyrohyoid muscle are innervated by ____ while omohyoid, sternohyoid and sternothyroid are innervated byfirst cervical nerve -C1; ansa cervicalis C1, C2, C3
Pampiniform plexus is located intestis
Ductus deferens plus duct of seminal vesicle formejaculatory duct
The junctional epithelium is locatedentirely on enamel, above CEJ
The best way to distinguish the free gingiva from the epithelial attachment isepit.attachment does not contain rete pegs or connective tissue papillae and the free gingiva does
The filiform and circumvallate papillae arekeratinized
The fungiform and foliate arenonkeratinized
Gingival group of ligaments arecircular group, dentogingival group, dentoperiosteal group, alveologingival group and transseptal group (5)
The main group of the PDL arealveolodental ligament (has 5 fibers group)
Alveolodental ligament consists ofalveolar crest group, horizontal group, oblique group, apical group, interradicular group (5)
Types of connective tissue properareolar, dense (regular), elastic, reticular, adipose (ADERA)
Most of epithelial tissue in the body arestratified squamous epithelium
3 types of cartilagehyaline, fibrocartilage, elastic
The principal GAGs of cartilage arechondroitinsulfate and keratan sulfate
Nasal cartilage consist ofhyaline cartilage
Cartilage can grow____, bone can grow___interstitial grow and appositional grow; bone- just appositional grow
Meissener's corpuscle isan oval body in the dermis, thought to participate in tactile sensation
Ruffini's corpuscle isan oval capsule containing the ends of sensory fibers in the dermal papillae
The young pulp lackscollateral circulation
Incremental lines of enamel are___, dentin are ___, cementum are ___ and alveolar bone arelines of Retzius; imbrication lines of Von Ebner; arrest and reversal lines; arrest and reversal lines
The organic matrix of enamel consist mainly protein wich is reach inproline
Enamel spindles areodontoblasts that crossed the basement membrane before in mineralized into DEJ
The contour lines of Owen area number of adjoining parallel imbrication lines that are present in stained dentin
Dentin contains colagen typesI (92%), and also types III, V, and VI
Permanent teeth move when eruptingoccusally and bucally
The primary enamel cuticle is ___, and the secondary enamel cuticle isthe organic matrix responsible for binding the epithelium to the tooth during development; is the thin membrane covering newly erupted teeth
The umbilical vein results inround ligament, aka ligamentum teres of the liver
Ductus venous results inligamentum venous in the liver
Ductus arteriosum results inligamentum arteriosum
Umbilical arteries results inthe lateral umbilical ligaments
Tropic hormones arehormones that have other endocrine glands as their target
Function of salivary amylase isto aid in breakdown of starch to maltose
Stafne's cyst isa bone cyst located beneath the mandibular canal in a radiograph. It houses an aberrant lobe of the submandibular gland
The sublingual gland veins drain tothe facial and lingual veins
The parotid gland veins intothe transverse facial veins
The submandibualr gland drains intothe facial vein
Blood supply of the nasal cavity is from five main sourcesAnterior ethmoidal artery, Posterior ethmoidal artery, Sphenopalatine artery, Greater palatine artery, Superior labial artery
The portal venous system consists of four large blood vesselsHepatic portal vein, splenic vein, superior mesenteric vein, and inferior mesenteric vein.
Branches of the internal thoracic artery includethe superior phrenic, the mediastinal, the pericardiac, the sternal, the anterior intercostals, the perforating, the superior epigastric, and the musculophrenic (Students May Post Strange Announcements Perforating Super Map)
Due to increased vagal activity medications such as beta-blockers, digitalis, clonidine and methyldopa can result inincrease sensitivity of the carotid sinus
The three terminal branches of the celiac artery are Left gastric, Splenic, Common hepatic
The left vertebral artery is generallylarger than the right vertebral artery and therefore caries more oxygenated blood
The first cementum to be formed during tooth development isacellular extrinsic fiber cementum
New alveolar bone proper (such as that deposited during orthodontic tooth movements) is formed byintramembranous ossification
The first sign of undermining resportion isrise in osteoclastic activity in the marrow space of alveolar bone is the first sign of undermining resportion
The pterygoid plexus and ophthalmic vein anastomose withthe facial vein
The cell-rich zone AKAthe zone of Rinaggio
The epithelium and lamina propria together make upthe mucosa
The gingival apparatus refers to thegingival fibers or gingival ligament plus the epithelial attachment
Cemental spurs are found near the CEJ and are similar toenamel pearls. They are a condition of irregular cementum deposition
The periodontal ligament (PDL) is a group of connective tissue fibers primarily composed oftype I collagen
Perikymata are often mistaken withdental calculus
The area known as the "danger triangle of the face" is made up of the orbital, nasal and paranasal sinuses
Amelogenins, ameloblastins, enamelins, and tuftelins areimportant proteins that are used in the mineralization process of the newly secreted enamel matrix
The sinus space most likely involved in rare cases of odonogenic infections that have lead to fatality isthe cavernous sinus
Neural crest cells - directly influencethe ectomesenchyme
Mantle dentin contains Von Korffs fibers which secrete thicktype III collagen
It is more mineralized than mantle dentincircumpulpar dentin
Both mantle and circumpulpal dentin are types ofprimary dentin
The contour lines of Owen are seen as a series of dark bands in dentin that representa time during which there was a disturbance in body metabolism that affected the odontoblasts ability to form dentin. They are basically a group of parallel and adjoining imbrication lines that appear as stained dentin
Primary teeth development begins at6 weeks in utero with the dental lamina (by 8 weeks, all primary teeth have began development)
The most abundant cell in the human brainastrocytes
Passive Eruption is eruption that occurs as we age, when the gingiva recedes and no actual tooth movement takes place
In permanent teeth, enamel near the CEJ tends to direct itself towardthe root of the tooth
Nasmyth’s membrane (AKA enamel cuticle) is an embryological structure composed of keratin that gives rise tothe enamel organ
About ¾ root formation is complete prior toeruption of the tooth through the soft tissue
The superficial veins of the upper limbs includethe basilic vein, cephalic vein, and median cubital vein
The deep veins of the upper limb includethe subclavian vein, axillary vein, brachial vein, radial vein, and ulnar vein
Any movement that occurs without tipping, torqueing, etc. and only involves bodily movement of the tooth is calledtranslation
Loose fibrous tissue includes reticular tissues, such asbone marrow lymph nodes and the spleen
Actively ingest bacteria through the process of phagocytosisNeutrophils or PMNs
Sarcosomes aremitochondria of the muscle cell
The mesencephalic nucleus of CN V contains cell bodies of fibers concerned withproprioception
The chief nucleus of V contains cell bodies for fibers ofthe motor root of V3
The spinal nucleus of V contains second-order neurons in the pathway forpain and temperature
Martinotti cells are neurons with ascending axon processes found inthe polymorphic layer of the cerebral cortex
Tensile strength in bone or cartilage is dependent primarily onthe number of collagenous fibers present
The sublingual gland, lingual nerve and submandibular duct lieimmediately deep to the mucosa of the floor of the mouth
The greater and lesser sac communicate throughthe epiploic foramen which is located behind the right border of the lesser omentum
Desmosomes attach adjacent cells to each other, and are known asmacula adherens
Testosterone is produced byinterstitial cells of the testes
Reduced dopamine production in the substantia nigra is associated withParkinson's disease
The caudate nucleus is a comma-shaped section of the cerebrum and is located justinferiorly and laterally to the lateral ventricle of the brain
Fordyce spots are considered a developmental anomaly, they are characterized byheterotopic collections of sebaceous glands at various sites in the oral cavity
Gingiva contains collagenous fibers only, while alveolar or lining mucosa containsboth collagenous and elastic fibers
The vast majority of the afferent and efferent projection fibers of the cerebral cortex traversethe internal capsule
Bile is secreted bythe hepatocytes of the liver
Elastic fibers are composed of the protein elastin which is notable for the presence of amino acidsdesmosine and isodesmosine
Collagen contains the unusual amino acidshydroxyproline and hydroxylysine
Lysosomes containproteolytic enzymes capable of digesting cellular proteins