Pal Cadaver Axial Skeleton Skull Lab Practical Question 16: Your Complete Study Guide
If you're staring at a cadaver lab specimen and trying to figure out which bone you're looking at, you're not alone. Worth adding: anatomy lab practicals have a way of making even the most confident pre-med student feel like they're reading hieroglyphics. And when question 16 on your lab practical specifically asks about the palatine bones — well, that's where things get tricky. These small, paired bones hide in the back of the skull, and most students spend way too much time hunting for them Simple, but easy to overlook..
Here's the thing: once you know what to look for, the palatine bones actually become one of the easier bones to identify. Let me walk you through everything you need to know.
What Are the Palatine Bones?
The palatine bones are two small, L-shaped bones that sit at the back of the hard palate — that bony ridge behind your upper teeth. They're part of the axial skeleton, which includes the skull, vertebral column, and rib cage. If you run your tongue along the roof of your mouth, you're feeling the palatine bones (and the maxillae, which make up the front portion).
Honestly, this part trips people up more than it should.
Each palatine bone has two perpendicular plates — a horizontal plate that forms part of the hard palate, and a vertical plate that contributes to the lateral wall of the nasal cavity. Day to day, the two palatine bones meet in the midline, forming the posterior portion of the hard palate. This is why they're so important: they separate the oral cavity from the nasal cavity.
Here's what most students miss: the palatine bones also form part of the orbit's floor in some areas, and they contribute to the pterygopalatine fossa — a fancy name for a small space behind your upper molars where several important blood vessels and nerves pass through. But for your lab practical, focus on the hard palate first Most people skip this — try not to..
Key Anatomical Landmarks
On a cadaver specimen, you'll want to look for:
- The horizontal plate — this is the flat part you see when you look at the roof of the mouth. It has a ridge called the palatine crest.
- The vertical plate — this runs upward from the horizontal plate, forming part of the side wall of the nasal cavity.
- The pyramidal process — a small protrusion that sticks out backward and downward from where the two plates meet.
- The orbital and sphenoidal processes — these are the upward projections that connect to surrounding bones.
The palatine bones are easier to identify when you understand their relationships to neighboring structures. They're located posterior to the maxillae (the upper jaw bones) and anterior to the pterygoid plates of the sphenoid bone.
Why This Question Matters
Here's the deal: the palatine bones are one of those "easy points" on a lab practical if you know what you're looking at — and a guaranteed miss if you don't. But most students spend too much time on the flashy bones (the femur, the skullcap) and overlook the smaller, deeper structures. Question 16 is designed to test whether you can identify bones in context, not just memorize isolated facts.
In real-world anatomy — whether you're going into medicine, dentistry, or physical therapy — understanding the hard palate matters. Dentists work around these bones daily. Plus, eNT specialists deal with structures that connect to them. Even if you're just trying to pass the class, knowing the palatine bones tells your professor you understand the skull as an integrated system, not just a collection of named parts Surprisingly effective..
The axial skeleton makes up about 80 bones in the human body, and the skull alone contains 22 bones. Your lab practical isn't just testing memory — it's testing whether you can look at a specimen and say, "This is the palatine bone, and I know it's the palatine bone because..."
People argue about this. Here's where I land on it.
That's the skill you need to develop Small thing, real impact..
How to Identify the Palatine Bones on a Cadaver Specimen
This is where most study guides fall short. They tell you what the palatine bones are but don't tell you how to actually find them on a wet specimen. Here's the step-by-step:
Step 1: Locate the hard palate. Start at the upper teeth (the alveolar ridge) and work backward. The hard palate is that bony roof of the mouth. The front two-thirds are formed by the palatine processes of the maxillae. The back third — that's your palatine bones Worth keeping that in mind..
Step 2: Look for the midline suture. The two palatine bones meet in the center, just like the two halves of your skull. You'll see a seam running front to back. This is the median palatine suture.
Step 3: Identify the horizontal plates. These are the flat, shelf-like portions that form the roof of your mouth. They're thin — much thinner than the maxillae — and they have a slightly rough texture.
Step 4: Find the vertical plates. If you can see the nasal cavity (usually by removing the mandible or looking at a sagittal section), look for the vertical plates rising up from the horizontal plates. They form the back part of the lateral nasal wall That's the part that actually makes a difference..
Step 5: Look for the pyramidal process. This little bump projects downward from where the horizontal and vertical plates meet. It's one of the most distinctive features, and once you see it, you'll never forget it Most people skip this — try not to..
What to Do If You Can't Find Them
Real talk: sometimes specimens are damaged, poorly preserved, or just hard to work with. If you're struggling:
- Ask your TA or instructor to point them out on a model first, then go back to the cadaver.
- Look at multiple specimens — different bodies show structures differently.
- Study the articulated skull (the bones connected together) before trying to identify them in isolation.
- Don't forget about the model skeletons in the corner of the lab. They're not cheating — they're learning tools.
Common Mistakes Students Make
Let me save you some time by telling you what doesn't work:
Mistake 1: Confusing the palatine bones with the maxillae. The maxillae are bigger, they form the upper jaw and the front of the hard palate, and they contain the sockets for your upper teeth. The palatine bones are smaller, sit further back, and don't have tooth sockets. If you see an alveolar ridge (the bumpy part where teeth go), you're looking at the maxilla, not the palatine bone That alone is useful..
Mistake 2: Trying to identify bones from one view only. The palatine bones are three-dimensional structures. You need to see them from the oral cavity (bottom), the nasal cavity (top), and the lateral aspect (side). If you're only looking from one angle, you're missing half the information.
Mistake 3: Ignoring the surrounding anatomy. The palatine bones don't exist in a vacuum. They're surrounded by the vomer (the thin bone in the center of your nose), the sphenoid bone (with its distinctive butterfly shape), and the maxillae. Use those landmarks to orient yourself.
Mistake 4: Studying only from pictures. Yes, you need to know what the bones look like in diagrams. But a textbook drawing doesn't show you the color, texture, or relative size of structures in a real specimen. Get into the lab early, get your hands on the specimens, and practice identifying bones in person.
Practical Study Tips That Actually Work
I've been through this process, and here's what I wish someone had told me earlier:
Use the "three-view rule." For every bone, be able to identify it from at least three different angles. For the palatine bones, that means superior view (from above, looking at the hard palate), inferior view (from below, looking up at the nasal cavity), and lateral view (from the side).
Make connections. Don't memorize bones in isolation. The palatine bone connects to the maxilla, the sphenoid, the vomer, and the inferior nasal concha. Say the connections out loud: "The palatine bone articulates with the maxilla anteriorly, the sphenoid posteriorly, and the vomer medially." Saying it out loud helps it stick.
Practice with a partner. One of you describes a bone while the other identifies it. Switch roles. This forces you to use the correct anatomical terminology — and that's what your lab practical will be testing.
Use the models first, then the cadavers. If you're struggling, start with the plastic skeletons. They're cleaner, easier to handle, and they won't have tissue obscuring the bones. Once you're confident with the models, transition to the preserved specimens.
Don't wait until the night before. Anatomy is a cumulative subject. Spending an hour each day in the lab for two weeks will serve you better than eight hours of cramming the night before the practical.
FAQ
What if the palatine bone is broken or missing on my specimen?
It happens. If you can't find the palatine bones on one specimen, check another. On top of that, your instructor should also have a model or additional specimens available. Specimens vary in quality, and some structures are more fragile than others. Don't lose points on question 16 because you didn't check multiple options Small thing, real impact..
Do I need to know the foramina (openings) on the palatine bones?
For most undergraduate anatomy courses, you'll need to know that the palatine bones contain the greater palatine foramen and lesser palatine foramina (where nerves and blood vessels exit to supply the palate). If your syllabus specifically mentions these, add them to your study list. If not, focus on bone identification first Not complicated — just consistent. And it works..
How is the palatine bone different from the palatal bone?
There's no difference — they're the same structure. "Palatine" is the correct anatomical term, and you'll see it used in textbooks and on exams. Some students get confused because the hard palate is also called the "palate," but the bones themselves are the palatine bones Nothing fancy..
Can I identify the palatine bones from the outside of the skull?
Not directly — they're internal bones. Still, you can palpate (feel) the posterior edge of the hard palate through your mouth. Now, if you run your tongue backward from your front teeth, you'll eventually reach a point where the bony roof ends and the tissue becomes soft (that's where the soft palate begins). The palatine bones form the posterior portion of that hard, bony section.
What's the most distinctive feature of the palatine bone on a lab practical?
The pyramidal process. It's that small, downward-pointing projection at the junction of the horizontal and vertical plates. Once you know what you're looking for, it's one of the easiest bones to identify — which makes it a common "gimme" question on practical exams.
The Bottom Line
Question 16 on your lab practical is asking you to identify the palatine bones — two small, L-shaped bones that form the posterior portion of the hard palate. They're not the flashiest bones in the skull, but they're important, and knowing how to find them shows that you understand the anatomy of the axial skeleton in three dimensions.
Don't overthink it. Which means get into the lab, look at multiple specimens, and focus on the key landmarks: the horizontal plate (the shelf), the vertical plate (the wall), and the pyramidal process (the little bump). Once you've seen them a few times, they'll be impossible to miss But it adds up..
You've got this.
