Lecture Exam 1 Flashcards
Auditory Ossicles
Maleus (Hammer) Incus (Anvil) Stapes (Stirrup)
Cranial Bones (8)
Old People From Texas Eat Spiders -Occipital -Parietal (2) -Frontal -Temporal (2) -Ethmoid -Sphenoid
Occipital
Parietal
Frontal
Temporal
Ethmoid
Sphenoid
Facial Bones (14)
Common Love Zip -Concha (2) -Maxilla (2) -Mandible -Nasal (2) -Lacrimal (2) -Vomer -Zygomatic (2) -Palatine
Concha
Maxilla
Mandible
Nasal
Lacrimal
Vomer
Zygomatic
Palatine
Glabella
Superciliary Arch
Supraorbital Foramen
What bones create the nasal septum?
Vomer and Ethmoid
Nasal Septum
Mental Foramen
Mental Protuberance
Internal Nares
Foramen Ovale
Inferior Nuchal Line
Superior Nuchal Line
Temporal Process of Zygomatic Bone
Zygomatic Process of Temporal Bone
What creates the Zygomatic Arch?
The zygomatic process and the temporal process
Styloid Process
Mastoid Process
Foramen Magnum
External Occipital Protuberance
Coronal Suture
Labdoid Suture
Sagittal Suture
suture between parietal and temporal bones
Squamous Suture
Wormian or Sutural Bones
What is a Fontanel?
- The regions between the cranial bones are thickened, fibrous membrane remnants that are not yet ossified
- Sometimes rederref to as the “soft spots” on a baby’s head
- They close by 15 months of age
- When a baby travels through the birth canal, the cranial bones overlap at these fontanels in order to ease the babys passage
- newborns frequently have cone shaped heads due to this temporary deformation
Frontal Sinus
Ethmoid Sinus
Sphenoid Sinus
Maxillary Sinus
Temporomandibular Joint
What do sinuses do for the skull?
- Have mucous lining that helps to humidify and warm inhaled air
- Cause the skull bones to be lighter
- Provide resonance to the voice
Where is the Hyoid Bone Located?
- “floats” in the superior aspect of the neck, just inferior to the mandible
- provides attachements for the tonguq muscles and the muscles which elevate the larynx during speech or swallowing
Green: Greater Cornu
Red: Lesser Cornu
How many vertebrae in each vertebral region?
- Cervical: 7
- Thoracic: 12
- Lumbar: 5
- Sacral: 5 fused
- coccygeal: 4-5 fused
Spinous Process
Transverse Process
Body
Lamina - Bridge between spinous process and transverse process
Pedicle - Bridge between transverse process and bod
Superior articular process and facet
What kind of vertebrae is this? How can you tell?
Cervical
- Transverse Foramen
- Bifid spinous processes
- small transvese procesess
- no articular facets for ribs
What type of vertebrae is this? How can you tell?
Thoracic
- 1 vertebral foramen
- angeled spinous process
- large transverse process
- articuar facets for ribs
What type of vertebrae is this? How can you tell?
Lumbar
- 1 vetebral foramina
- short and blunt spinous processes
- large and blunt transverse processes
- no articular facets for ribs
What is the atlas?
- C1
- assists with yes motion
- occipital condyle of skull rest on atlas
What is the axis?
- C2
- assists with no motion
- has a dens (odontoid process)
What is the dens or odontoid process?
Process extending superiorly from the axis providing pivot point for atlas to move
What are each of these spinal curve deformities?
What differentiates true ribs from false ribs?
True ribs connect directly to the sternum via costal cartiledge.
1-7 are true ribs…8-10 has costal cartiledge attaching to the costal cartiledge of the 7th rib and ribs 11-12 are floating ribs containing no costal cartiledge
Head - vertebral articulation
Neck - between head and tubercle
Tubercle - articular facet for transverse process of vertebra
Angle - point of greatest curvature
Shaft
Manubrium
Body
Xiphoid Process
Sternal angle - point where the manubrium joins the body; 2nd rib attaches
Clavicle: Acromian End
Clavicle: Sternal End