Hi all,
just some quick questions... have been studying head and neck stuff and thort i was doing ok unitl i read some of the previous exam questions and realised i couldn't answer any of them :(.
Any way..
1)when it is talking about nerve supply can someone tell me what it means by the type of innervation? coz i thort this meant whether it was afferent or efferent However.. i dont kow what efferent or afferent means in relation to nerve supply.?? any help would be good.
2)what does proprioception mean? i think i know but i just want to double check and i cant find a definition anywhere.?
3) with enous drainage of head and neck- what is the clinical significance of the cavernous sinus and the pterygoid plexus - coz i had basically that the pterygoid plexus means that infections can spread anywhere into the head and neck as there is no valves and no direction etc.
and the clinical significance of the cavernous sinus is that dental infections can spread to the brain through here?????
4) With microbiology- do we need to know about the history of microbiology or was that just put into the notes for "fun" lol.
5) also with micro- what is the germ theory? or does this just help explain kochs postulates.??
Ok thats all for now guys.. but im sure there will be more soon.
Happy Studies.. thanks for the help :D
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6 comments:
Ok well im not 100% sure but I'll have a go helping you coz atm im studying embryology:
1)type of innervation might be asking if its mixed or sensory or motor fibers.
2)proprioception is awareness of movement: a third distinct sensory modality that provides feedback solely on the status of the body internally) eg balance
with 3) 4) 5) i don't know off the top of my head but when i revise those sections i will let u know!
From question 2 as the word suggests its probably related to proprioceptors which are neuromuscular receptors (sensory) that register stimuli, such as stretch, tonicity, and movement within muscles. So yeah what candi said seems to be fine.
Thanks guys. Yea thats what i thort about proprioception but u kow how ur brain plays tricks on ya when ur studying.. LOL.. thanks heaps.
Ahh yes and mixed sensory and motor.. that makes sense.. ima learn those now.. LOL.
Ahhhh so much to learn. dam trigeminal and facial. LD
1)i think type of innervation refers to motor, sensory or mixed
2) Candi and Duncan covered this one!
3) well, the cavernous sinus may be involved with the spread of infection from the teeth or periodonitum, which can lead to death due to its location near the meninges.
with the pterygoid plexus, some portions of it are near the maxillary tuberosity (reflecting the drainage of dental tissues into the plexus) and this mean there is a possibility of piercing the plexus when a PSA LA block is performed if the needle is overinserted. a spread of infection along the needle tract deep into the tissues can also occur which may lead to infection of the cavernous sinus.
4) we don't need to know about the history, i'm pretty sure he said it was just for fun =) everything else we need to know though!
5) don't think this is necessary knowledge as it is to do with history. maybe email dr gully about it?
hope this helps!! :D
Impressive!!!! You guys sorted the issues out like professionals.. well done. Just as a final remark: Sensory and motor mean afferent and efferent respectively.. they're just different terms to mean the same thing.
keep up the awesome work!
Hi guys
ditto to Sophie's comments - I think we have some future Hum Biology tutors here!
Remember to revise the case studies we did on the various topics as these are a great way to apply the knowledge.
Cathy
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