Exercise 10: The Axial Skeleton (the skull)
- Trident Technical College
- Biological Sciences
- Biological Sciences Bio210 p05
- Exercise 10: The Axial Skeleton (the skull)
Last Modified: 2012-05-12
★ Skull, vertebral column, ribs
★Head, neck & trunk
Parietal bone. Temporal bone.
Vomer & Inferior nasal conchae
- Supraorbital foramen
- the small hole just above the orbital opening
- Provides passage for nerve, artery and vein
- Allows passage of blood vessels
- where eyebrows would be (brow ridges)
- protrudes over eye sockets in males
- glabella- osteometric point, center of supraorbital ridge,
- 2 bones form dorsolateral walls of cranuim
- Sagittal suture
- Coronal suture
- superior mid-line
- Divides the parietal bone (right & left)
- joins the frontal bone anteriorly
- Attaches the frontal bone to the parietal bones of either side.
- The occipital, parietal, and frontal bones form the calvaria or skull cap.
- Squamos suture
- Zygomatic process
- Mandibular fossa
- External acoustic meatus
- Styloid process
- Mastoid process
- Jugular foramen
- Carotid canal
- Internal acoustic meatus
- Foramen lacerum
- Forms the boundary between the temporal bone and the parietal bone on each side of the skull.
- Shows the interstitial space between the squamous sutures and the lambdoid sutures.
- Shows the path of the squamous sutures on the right side of the skull.
- A slender process of the temporal bone that
- Strengthens the zygomatic arch. Connects to temporal process.
- A rough projection inferior and posterior to external acoustic meatus; attachment site for muscles ; part of the mastoid part
- passageway for the carotid artery
location = between petrous part of temporal bone, sphenoid bone, and occipital bone
structures that pass through - none (filled with cartilage)
the bone of the skull.
2. skull bone that articulates with the first cervical vertebrae (occipital condyles)
3. Connects the head with the neck (atlantooccipital joint).
- Lambdoid suture
- Foramen magnum
- Occipital condyles
- Hypoglassal canal
- Site of articulation of occipital bone and parietal bones.
- One or more sutural bones may be present along the lambdoid suture
- a passageway for the hypoglossal (XII) nerve located on the occipital bone
- forms part of the floor of the cranium
- unites the cranial and facial bones, strengthens the sides of the skull
- Portions of the sphenoid seen exteriorly anterior to the temporal and forming part of the eye orbits.
allow cranial nerves that control eye movement to enter the orbit
At the base of the skull; is one of the larger of the several holes (the foramina) that transmit nerves through the skull.
The foramen ovale is situated in the posterior part of the sphenoid bone, posterolateral to the foramen rotundum.
F: Forms anterior portion of cranial floor, medial wall of orbits, superior portion of nasal septum, and contains air spaces to give bone a sievelike appearance
- Crista galli
- Cribiform plates
- Middle nasal conchae
- Prominent opening on the body that transmits the mental blood vessels and nerve to the lower jaw
- Alveolar margin
- Infraorbital foramen
- Incisive fossa
situated in medial portion of each orbit
articulates with: frontal bone, maxilla, ethmoid.
Lacrimal groove-leads narrow passage way, nasolacrimal canal-formed by lacrimal bone and maxilla. Encloses tear duct (lacrimal duct)
- Thin curved bones protruding medially from the lateral walls of the nasal cavity
Words From Our Students
"StudyBlue is great for studying. I love the study guides, flashcards, and quizzes. So extremely helpful for all of my classes!"
Alice, Arizona State University
"I'm a student using StudyBlue, and I can 100% say that it helps me so much. Study materials for almost every subject in school are available in StudyBlue. It is so helpful for my education!"
Tim, University of Florida
"StudyBlue provides way more features than other studying apps, and thus allows me to learn very quickly! I actually feel much more comfortable taking my exams after I study with this app. It's amazing!"
Jennifer, Rutgers University
"I love flashcards but carrying around physical flashcards is cumbersome and simply outdated. StudyBlue is exactly what I was looking for!"