The Skeletal System or Here's a Few Things to Save Your Skin During Bone Practicals.
For those who have bone practicals coming up, here's a few tips and tricks that helped me for my bone practical. Of course, always make sure to study by going to a study hall that (hopefully) has bones that you can borrow while you're there and study with.
Words and Vocabulary:
- anterior = front
- posterior = back
- lateral = away from the middle
- medial = towards the middle
- supra = above
- infra = below
- epi = avove
- -cyte = mature cells
- -blast = immature cells
- foramen = big holes
- foramina = small holes
- process = pointy things that sticks out
- condyles and epicondyles = small bumps * epicondyle = raised boney area above condyle
- fissure = slits
- fossa = shallow depression
- notch = cavity within the bone
- sinus = cavity within a bone
- head = knob-like projection for joint
- facet = flat projection on joint
- tubercle = small, rounded projection
- tuberosity = large, rounded projection
- Axial Skeleton = head + spine
- Appendicular Skeleton = everything else.
In the eye socket:
- Ethmoid = behind the eye sockets.
- Lacrimal = closer to the tearduct, next to the ethmoid.
- Sutures * Coronal suture (front), Sagittal suture (divides parietal bones bones — think of it as the arrow that's getting shot at the coronal suture), Lambdoid suture (the back — the sting of the bow).
- Fetal Fontanelles * Anterior Fontanelles = at the top of the skull, near the front. * Posterior Fontanelles = in the back near the lambdoid suture.
The vertebral column:
- Cervical, thoracic, lumbar, sacrum, coccyx
- There are 7 cervical bones, 12 thoracic bones, and 5 lumbar bones. * A good way to remember how many bones? “Breakfast at 7, lunch at 12, and dinner at 5” OR “7 cats chased after 12 turtles only to run into 5 lions.”
- C1 = Atlas * The Atlas has the superior articular facet which articulates with the occipital bone on the skull.
- C2 = Axis * The Axis has the dens which is the pointy projection that points upwards.
- Pedicle vs Lamina * pedicle = closer to the body * lamina = closer to the spinous process
Humerus, radius (lateral), ulna (medial):
- Henry ran under.
- Carpals, metacarpals, phalanges. * Cats Munched on Paper.
- Scaphoid, Lunate, Triquetral, Pisiform, Trapezium, Trapezoid, Capitate and Hamate * “Some lovers try positions that they can't handle.”
- Femur = big bone
- Patella = knee cap
- Tibia = medial bone beneath femur, medium size. you know you're looking at the anterior side when you see the anterior crest.
- Fibula = lateral bone beneath femur
- Tarsals, metatarsals, phalanges
- Calcaneous = heel
- Talus = articulates with tibia (at the medial malleolus) and fibula (at the lateral malleolus)
- Navicular = rectangular bone between talus and cuneiforms
- Cuboid = cube like bone on the lateral side
- Cuneiforms = three smaller bones on the medial side, above navicular
- Complete Anatomy = Email customer service with your student email address and ask them about discounts for students. The student discount is 50%, so make sure to take the opportunity!