Head and Neck Exam: Case Study 2

Hey guys,

This is in relation to the 2nd case study from the practice head and neck exam, the one where the patient coughs up the stone bur, and ingests it again as he swallows. It asks to describe what as happened and what you can expect to happen in the future.

For the first part I said when he first swallowed it the gag reflex prevented the bur from entering the body. The second time I said the reflex didn't react and he swallowed the bur, causing it to enter his digestive system (as the epiglottis closed entry to the larynx).

But what can we expect to happen in the future???

Hope the study is going well :D

Head and Neck Questions!!

I've been doing some final revision questions from the Head and Neck text and need some confirmation on some questions =) (<--- is the one i chose)

Which of the following arteries arises from the inferior alveolar artery before the artery enters the mandibular canal?
A. Mylohyoid <---
B. Incisive
C. Mental
D. PSA
E. Submental

Which of the following vascular lesions may result when a clot on the inner blood vessel wall becomes dislodged and travels in the vessel?

A. Hematoma <---
B. Venous sinus
C. Embolus
D. Hemorrhage

Which of the following is the larger terminal branch of the external carotid artery?

A. Superficial temporal artery
B. Ascending palatine artery
C. Facial artery
D. Maxillary artery <---
E. Lingual artery

Which of the following is contained in the carotid sheath?

A. Facial nerve
B. Internal jugular vein
C. Aorta
D. Superficial lymph nodes

Which of the following cranial nerves has fibres that cross to the opposite side in the skull before continuing into the brain?

A. Facial
B. Optic
C. Trochlear
D. Vestibulocochlear

Which of the following nerves exits the foramen ovale of the sphenoid bone?

A. Chorda tympani of the facial nerve
B. Greater petrosal nerve of the facial nerve
C. Opthalmic nerve of the trigeminal nerve
D. Motor root of the trigeminal nerve <---

Also, just found this out then, the mylohyoid nerve may serve as an afferent nerve for the mandibular first molar, which needs to be considered when there is failure of the inferior alveolar LA block =)

Any help answering these questions would be great!!

Thanks

?Radiographic anatomy questions??

May be a stupid question but we did 2 lectures in semester 2 on radiographic anatomy, will this be in it too?

Practice exam questions.

Ok Thu-huu and i have been studying together again and we have a few questions from the practice head and neck exam that we would like some help with.
ok so with multiple choice

Q4,what artery supplies the oropharynx region (where swollen tonsils are evident) we thorught it is either A) the superior thyroid artery or B) the Ascneding Palatine artery,

Q5 which of the nerves ,may show crossover from the opposite side in a patient we thought b) the ASA but just want to double check.

Q7, Which of the following muscle pairs and nerves are correctly matched. we thort D) auriclotemporal nerve and temporalis?? not sure tho

True/false
Q3, the portion of the pharynx between the soft palate and the opening of the larynx is the nasopharynx. we put false is this right?

Q10, the posterior third of the tongue called hte pharyngeal portion attaches to the floor of the mouth (we had true but we REALLY weren't sure on this) had much discussion about the answer

and short answer
Q9 which specific nerves are relating the pain from the sore jaw muscles?
we said muscular branch of V3 but we weren't sure if it was also the facial nerve as this supllies muscles of facial expression. ?? Any help on this would be good

ALSO embryology
What rae some dental developmental disturbances that can happen during bell stage of development (such as the microdontia etcthat happen during cap stage) ??

Thanks guys so much
Any help would be great we were getting confused. :D

Embryology again. :D

Hey again
1) can some one explain tome how the mesoderm is formed. coz i get that it is formed from the ectoderm but just a bit confused

2)nd jsut looking at one of the review shets we were given for embryolgy Human Bio 1OH review of session 1- there i a table for Q 2 that i am not sure how to fill out.
He has about the stages of prenatal development, the weeks of gestation for each and then has a column for embryonic form and orofacial development and im not really 100% sure what it means by embryonic form? i think with the oro-facial development we would just put what is occuring during that time. ? is this what others think or am i ocmpletely off track.

Thanks. :D

Embryology

Hi All.
just a quick question.
Differentiate between the causes of cleft lip and cleft palate. ?
I was thinking this was that cleft lip is when fusion doesn't occur between the medial nasal process and maxiallry process in the lip area. and that cleft palate is when fusion doesn't occur correctly with the 2 palatal shelves or the palatal shelve(maxilla) and the anterior hard palate but im just not sure if this is correct or if i have made this up in my head. :D

Any Clarification would be great. THANKS
enjoy the heat. :D

Microbiology

Hey guys,

I thought I'd post some Microbiology questions from previous exams up for us to answer together, that way we can all learn from each others knowledge =)
for the multiple choice you can select one or more answers

1. These are eukaryotes
a) bacteria
b) yeasts
c) prions
d) protozoa
e) viruses

2. Prokaryotes usually possess
a) a cell wall
b) golgi apparatus
c) a nucleus
d) ribosomes
e) mitochondria

3. All bacterial cell walls
a) contain peptidoglycan
b) contain cellulose
c) have a double membrane structure
d) are internal to the cytoplasmic membrane
e) provide protection against osmotic stress

4. Biofilms
a) provide protection to microbes from attack by antibiotics/chemicals
b) contain only one type of microbe
c) are found rarely in nature
d) may develop on plastic catheters/prostheses
e) are covered in a layer of polysaccharide/slime

5. Provide simple definitions for the following terms:
a) infection
b) pathogen
c) virulence
d) parasite

6. How may bacteria be beneficial to life on earth?
7. In health, large numbers of microbes inhabit our bodies. Are they important in maintaining health? If so, how? When might they be harmful?
8. To be successful pathogens bacteria have to be able to evade or nullify the human immune system. Give examples of mechanisms for this property.

Head and Neck Anatomy

1. What is the link between chorda tympani and clincial dental practice?

2. The relationship of the Maxiallay sinus to teeth
- location of the sinus found within the maxilla
- which teeth are most likely to be anatomically assocaited with this sinus
- the clinical significance of the Maxillary sinus and its relevance to oral health.

Ive had a go at these questions but im not sure if they are right. These were some questions from the work books handed out after each lecture. if you can help me answer these, i would appreciate it A LOTT :) thanks guys

goodluck with study!!!

Embrology

Hey just a quick question. In the 3rd lect notes of embryology it talks about bone formation and it says something about post cranial skeleton. just wondering what exactly is the post cranial skeleton?
Thanks guys. :D

Embryology

Hey guys i just have a question in relation to embryology..

on pg44 of our embryology text it says that the maxillary process and mid-face formation is during the fourth week of prenatal development (within the embryonic period) but in our lecture notes from wk 11 development of the face and neck; it says during the 5th week? (its on the slide titled 4th-5th week: maxillary processes & mid-face formation)

I think its the 4th week but i just wanted to see what you guys think!
Your help would be greatly appreciated!
X

human Bio... EEEEppppp

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

LAST BIO EXAM FOR THE YEAR

Hi everyone,

Okay, with HB exam I know it is on head and neck but will there be questions on the blood supply in the head and neck and the nerve supply in the head and neck and possibly lymph drainage?? What is it about the head and neck specifically we need to know!!

xoxo b.