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A&P.skeleton.fall08
A&P.tricOH.skeleton.fall2008
| Question | Answer |
|---|---|
| bone-spongy - cancellous | small spaces surrounded by matrix |
| bone- compact | bone matrix with few small spaces |
| tuberosity | a large tubercul or rounded elevation; especially on bone surface |
| crest | prominent ridge |
| trochanter | one of the boney prominences developed from independent osseous center-upper extremity of femur - NOTE: humans have two - horses have three |
| trochanter | Horses canter, humans run on two feet-two on femur |
| bone - line | low ridge |
| tubercle | small rounded bump |
| epicondyle | "upon a condyle" a slight elevation from the surface of a bone, giving attachment to a muscle or ligament |
| condyle | a rounded articular surface at the extremity of a bone - like a condum with a rounded end |
| spine | a short, sharp thornlike process of bone L. "a thorn" |
| head - bone | enlarged end |
| ramus | part of an irregularly shaped bone, smaller than a "process" that forms an angle with the main body |
| ramus | "ram us" with a horn-bony projection (but not too large) |
| meatus | a passage of a channel, especially the external opening of a canal L. a passage |
| meatus | "meat us" at the Ear canal |
| sinus | a cavity or hollow space in bone or other tissues L. sinus "cavity" |
| fossa | a depression - more or less LONGITUDINAL in shape below the level of the surface of a part L. Trench or ditch |
| fossa | "fossa" lost ya in the LONG ditch |
| foramen | an aperature or perforation through a bone or a membranous structure L. an aperture |
| foramen | L. an aperture - French "foro" to pierce |
| bones of skull - supra-orbital margin | j |
| mastoid process | Gr. resembling a breast |
| mastoid process | the nipplelike projection of the petrous part of the temporal bone-hangs down behind ear |
| mastoid air cells | the mastoid process is filled with cavities - connected to the middle ear |
| mastoid process holds what muscles? | neck muscles involved in rotation of the neck |
| zygomatic process | Gr. a bar or bolt Fr. zygon "yoke" |
| zygomatic process | the rough projection from the maxilla that articulates with the zygomatic bone |
| zygomatic arch | the arch formed by the temporal process of the sygomatic bone as it joins the zygomatic process of the temporal bones |
| styloid | Peg-shaped Gr stylo- plus "eidos" resemblance |
| styloid process of the temporal bone | the "stylus" projecting from the temporal bone |
| mandibular or glenoid fossa | articulation point between the mandible & skull on TEMPORAL bone |
| where is the mandibular fossa | a depression on the TEMPORAL bone |
| malleus, incus & stapes | bones in ear |
| occipital bone | the back of the head |
| occipital condyles | articulation point between skull and first vertebra |
| Occipatal bone - the foramen magnum | the large hole at the base of the skull - opening point where brain & spinal cord connect |
| occipatal bone - lambdoidal suture | the suture which resembles the greek letter "lambda" - located on the superior of the occipatal bone - |
| sphenoid bone - | "sphenoid" Gr. sphenoeides "wedge" plus eides "resemblance" |
| sphenoid bone - sella turcica | L. sella "saddle" |
| sphenoid bone - lesser and greater wings | projections |
| sphenoid sinuses | the sphenoid has a bony sinus |
| ethmoid bone - | bone inside skull, forms part of orbit of eyes, part of nasal cavity |
| ethmoid bone - cribiform plate | cribri - "sieve" - form "forma" sievelike; containing many perforations |
| ethmoid bone - crista galli | "crest" - triangular midline process of the ethmoid bone - extends from cribiform plate |
| ethmoid bone - perpendicular plate | part of ethmoid bone that forms nose & connects to vomer-in nasal septum |
| nasal septum | L septeum - a partition |
| fracture of cribiform plate | in auto accident, cribiform plate may be fracture (if no air bags) driver's nose strikes the steering wheel |
| nasal conchae | superior & middle - look like conches - increase surface area in nasal cavity - moistening & warming of air |
| zygomatic (malar) bones | a quadrilateral bone that forms the prominence of the cheek-articulates with fraontal, sphenoid, temporaral and maxillary bone |
| nasal bones | maxillae; maxillary sinuses; alveolar process; infraorbital foramen; palatine process |
| maxillary sinuses | irregularly shaped bone-supporting superior teeth & form part of the orbit, hard palate, & nasal cavity |
| alveolar process | alveolus "small cell, cavity or socket" |
| infraorbital foramen | small hole below eyesocket |
| "infra" | means a position below the part denoted by the word to which it is joined |
| vomer | a flat bone-trapezoidal shape forming part of nasal septum |
| Palatine bones | irregularly shpaed bone posterior to the maxillae |
| mandible (6 pieces) | condylar process; coronoid process; alveolar process; body; angle; ramus |
| mandible - condylar process | the "condum" on the end of the mandible where it articulates with the jaw |
| coronoid process | a sharp triangular process from a bone |
| mandible - coronoid process | the triangular, anterior process of the mandible - |
| mandible - alveolar process | sockets for teeth |
| mandible - body | main part of mandible |
| mandible - angle | angle formed by lower posterior portion of mandible |
| mandible - ramus | projection-angled on mandible near middle of posterior |
| lacrimal bones | L. "lacrima" tears - relating to tears; tear ducts - |
| lacrimal bones | an irregularly rectangular thin plate, part of the medial wall of the orbit behind the frontal process of the maxilla |
| inferior nasal conchae | the lowest bone in nasal septum that looks like a conch shell |
| hyoid bone | NOT attached to another bone; floats below mandible & serves as attachment for some tongue muscles |
| nasal septum | vomer & perpendicular plate of ethmoid bone - plus hyaline cartilage |
| superficial facial bones | kkk |
| deep facial bones | |
| paranasal sinues (4 kinds) | frontal - ethmoidal labyrinth - sphenoidal sinus - maxillary sinus (named for bones in which they are located) |
| what is "keystone" of cranial floor? | Check - is it sphenoid?? |
| what is "keystone" of face? | check - is it maxilla? |
| what is a cleft palate? | facial bones don't fuse - palatine processes of the maxillae don't fuse with one another-opening between the nasal and oral cavities [cleft lip is if maxillae don't form properly] |
| fontanels (4) | frontal; posterior (occipital); anterolaterel (sphenoidal) and poterolateral (Mastoid-remember mastoid process of occipital bones -this is in that area) |
Created by:
walterina4327