Biology- parts of fetal pig brain

AI Thread Summary
The discussion focuses on the anatomy of the fetal pig brain in preparation for a dissection practical. The cerebellum, located posterior to the cerebrum, is identified as the smaller structure at the back of the brain, while the medulla oblongata is part of the brainstem and regulates vital functions. The cerebellum is generally smaller than the cerebrum but varies in size among individuals. Participants emphasize the importance of understanding the brain's structure for the upcoming test. Overall, the conversation highlights the complexity of the brain and encourages thorough review before the practical.
rasperas
Messages
9
Reaction score
0
Tommorrow I have a practical on the dissection of a fetal pig I have been doing all week. Today I removed the brain- intact out of the pig. I have completely forgotten a couple parts of the brain- and would like to remember them when I have the test tommorrow. Since the pig brain is similair in structure to human brain maybe you can help me- ok try to visualize- 1) The brain, as looked from above, has the main cerebrum- which is the biggest part, and then at the back is a almost a second little brain extending off of the cerebrum. Is this the cerebellum or the medulla oblangata? Is the cerebellum under the cerebrum or posterior? How big is the cerebellum in comparison to the medulla oblangata? Thankyou.
-Rod Aspera
 
Physics news on Phys.org


Hi Rod,

It sounds like you have been doing a lot of hard work and preparation for your fetal pig dissection practical. Congratulations on successfully removing the brain intact from the pig! The brain is definitely a complex and fascinating organ, and it's great that you are taking the time to review and understand its different parts.

To answer your questions, the second little brain at the back of the main cerebrum is the cerebellum. The cerebellum is located posterior to the cerebrum, which means it is towards the back of the brain. In terms of size, the cerebellum is typically smaller than the cerebrum, but it can vary in size depending on the individual. The medulla oblongata, on the other hand, is located at the base of the brain and is responsible for regulating vital functions such as breathing and heart rate. It is smaller than both the cerebrum and the cerebellum.

I hope this helps you better visualize the different parts of the brain and their locations in relation to each other. Keep up the good work and good luck on your practical tomorrow!

 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Biological photonics: Can there be light in the brain?
Replies
9
Views
2K

Hot Threads

Recent Insights

Back
Top