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sciencenerd123 wrote: ↑February 6th, 2020, 6:35 am I haven't seen any neuromuscular junction questions so far... Has anyone else seen them?

Yes, I have actually. Only one or two questions at an invitational. I have not seen it since though...

onionepidermis wrote: ↑February 6th, 2020, 7:32 am

sciencenerd123 wrote: ↑February 6th, 2020, 6:35 am I haven't seen any neuromuscular junction questions so far... Has anyone else seen them?

Yes, I have actually. Only one or two questions at an invitational. I have not seen it since though...

OK thank you , I don't get the difference between the following rules:

i. The interaction of the skeletal and muscular systems to allow movement
iii. Physiology of the skeletal muscle contraction system

What's the difference, am I just being slow?

sciencenerd123 wrote: ↑February 6th, 2020, 10:08 am

onionepidermis wrote: ↑February 6th, 2020, 7:32 am

sciencenerd123 wrote: ↑February 6th, 2020, 6:35 am I haven't seen any neuromuscular junction questions so far... Has anyone else seen them?

Yes, I have actually. Only one or two questions at an invitational. I have not seen it since though...

OK thank you , I don't get the difference between the following rules:

i. The interaction of the skeletal and muscular systems to allow movement
iii. Physiology of the skeletal muscle contraction system

What's the difference, am I just being slow?

Well, the interaction of skeletal and muscular system is like how does a muscle help a bone move, and physiology of the skeletal muscle contraction is like actin-myosin binding, and topics like those.

I have another question... In the rules, it says "How to distinguish between types of vertebrae". So I know what the different ones are and there order etc. But am I also supposed to know how to tell the difference by seeing a picture. Like are there chances that they will show a picture of vertebrae and ask us to tell them which vertebrae it is?

sciencenerd123 wrote: ↑February 8th, 2020, 1:53 pm I have another question... In the rules, it says "How to distinguish between types of vertebrae". So I know what the different ones are and there order etc. But am I also supposed to know how to tell the difference by seeing a picture. Like are there chances that they will show a picture of vertebrae and ask us to tell them which vertebrae it is?

Very high. I’ve gotten many questions where you need to determine which vertebrae the picture is showing as well as explain how you determined it. Usually it’s the cervical vertebrae and you can just say transverse foramen and bifid process but I would still know the differences of all of them.

sciencenerd123 wrote: ↑February 8th, 2020, 1:53 pm I have another question... In the rules, it says "How to distinguish between types of vertebrae". So I know what the different ones are and there order etc. But am I also supposed to know how to tell the difference by seeing a picture. Like are there chances that they will show a picture of vertebrae and ask us to tell them which vertebrae it is?

Personally I have got many questions on tests about this. They give you a picture and you will have to tell witch vertebrae it is, so I would highly recommend knowing the difference.

Thanks everyone for your help, and another question... What's the difference between occipitofrontalis and frontalis, bc all the diagrams I see show them as the SAME thing.. so im confused about that someone pls help...

sciencenerd123 wrote: ↑February 16th, 2020, 7:50 am Thanks everyone for your help, and another question... What's the difference between occipitofrontalis and frontalis, bc all the diagrams I see show them as the SAME thing.. so im confused about that someone pls help...

The occipitofrontalis has two bellies- the occipital and frontal (aka frontalis) bellies. So the frontalis is a part of the occipitofrontalis. It is confusing when both of them show up on the muscle list, but if an arrow on a diagram is pointing to the anterior section of the occipitofrontalis a good bet would be that it is just referencing the frontalis.

Does anyone have an easy resource to understand muscle contraction? How in-depth do we have to learn it? I completed neuromuscular junction(which im pretty sure comes before muscle contraction), but muscle contraction is just NOT making sense. Please help, my regionals are going to be here in 2 weeks!!

Look at this link:
https://ib.bioninja.com.au/higher-level ... ction.html

It also helps to watch some videos. Khan Academy has some good ones about muscle contraction

I would say you have to learn it very in depth