MedCosmos Surgery
Surgery Lecture Notes, Books, MCQ and Good Articles
Friday, September 5, 2008
Thyroid Gland MCQ
Thyroid Gland MCQ
1. what is the colour of the normal thyroid gland ?
answer : brownish-red colour .
2. the thyroid gland is highly vascular. TRUE OR FALSE ?
answer : true .
3. which of the following statements about thyroid is true ?
a- thyroid is located anteriorly in the upper neck
b- thyroid is located posteriorly in the upper neck
c- thyroid is located anteriorly in the lower neck
d- thyroid is located posteriorly in the lower neck
answer : c . the thyroid is located anteriorly in the lower neck .
4. what is the vertical extension of the thyroid in relation to the
vertebrae ?
a- C4 to T1
b- C5 to T1
c- C6 to T1
d- C3 to T1
answer : b . fifth cervical vertebra to the first thoracic vertebra . C5 to
T1.
5. thyroid is ensheathed by a fascia . what is it ?
answer : pretracheal layer of the deep cervical fascia .
,6. what are the number of lobes in thyroid ?
answer : 2 lobes . right and left lobes connected by a narrow, median
isthmus .
7. what is the weight of the thyroid ?
answer : 25 g ( usually but can vary ) .
8. among men and women, who have heavier thyroids ?
answer : women have slightly heavier thyroids when compared to
males.
9. a woman came to the doctor with complaints of increase in the size
of thyroid during menstruation . if u were the doctor there, what
would u do ?
answer : I would tell her that it is perfectly normal for the size of a
woman's thyroid to increase during menstruation .
10. a pregnant woman came to ur clinic with complaints of enlarged
thyroid . what would you suggest ?
answer : I would tell her that there is nothing to worry , because it is
absolutely normal for a woman's thyroid to enlarge during pregnancy
and menstruation .
11. how will you normally estimate the size of the thyroid gland ?
answer : by doing diagnostic ultrasound .
12. As I already told u women have heavier thyroids than men, hence
the volume of thyroid in women is slightly more than in men. But
there is a phase of life in both males and females where no significant
difference between the volumes of the male and female thyroid was
observed. When is that phase ?
answer : from 8 months to 15 years . between these ages the volumes
of both male and female thyroid show no significant difference .
13. what is the shape of the lobes of the thyroid gland ?
answer : approximately conical .
14. the bases of the thyroid lobes are level with which tracheal
cartilage ?
, answer : 4th or 5th tracheal cartilages .
15. what is the length of each thyroid lobe ?
answer : 5cms long .
16. the posteromedial aspects of the thyroid lobes are attached to
which structure ?
answer : cricoid cartilage .
17. what is the name of the ligament which attaches the lobes of
thyroid to the cricoid cartilage posteromedially ?
answer : lateral thyroid ligament .
18. what is the part of the thyroid that connects the lower parts of the
two lobes called ?
answer : isthmus .
19. what would you suggest to a healthy patient who has no isthmus ?
answer : I would suggest that it is physiologically normal for a person
to be born without an isthmus and this happens occasionally . I would
assure him that there is nothing to worry .
20. what is the length of the isthmus ?
answer : 1.25 cms transversely and vertically .
21. the isthmus normally lies anterior to which tracheal cartilages ?
answer : it usually lies anterior to second and third tracheal cartilages.
( it can lie slightly higher or slightly lower sometimes because of the
variations in size and site of the thyroid gland )
22. what is the tumor marker of the medullary carcinoma of the
thyroid?
answer : calcitonin .
23. what is the most common position of the thyroglossal cyst ?
answer : below the hyoid bone . ( check again ).
Surgery Lecture Notes, Books, MCQ and Good Articles
Friday, September 5, 2008
Thyroid Gland MCQ
Thyroid Gland MCQ
1. what is the colour of the normal thyroid gland ?
answer : brownish-red colour .
2. the thyroid gland is highly vascular. TRUE OR FALSE ?
answer : true .
3. which of the following statements about thyroid is true ?
a- thyroid is located anteriorly in the upper neck
b- thyroid is located posteriorly in the upper neck
c- thyroid is located anteriorly in the lower neck
d- thyroid is located posteriorly in the lower neck
answer : c . the thyroid is located anteriorly in the lower neck .
4. what is the vertical extension of the thyroid in relation to the
vertebrae ?
a- C4 to T1
b- C5 to T1
c- C6 to T1
d- C3 to T1
answer : b . fifth cervical vertebra to the first thoracic vertebra . C5 to
T1.
5. thyroid is ensheathed by a fascia . what is it ?
answer : pretracheal layer of the deep cervical fascia .
,6. what are the number of lobes in thyroid ?
answer : 2 lobes . right and left lobes connected by a narrow, median
isthmus .
7. what is the weight of the thyroid ?
answer : 25 g ( usually but can vary ) .
8. among men and women, who have heavier thyroids ?
answer : women have slightly heavier thyroids when compared to
males.
9. a woman came to the doctor with complaints of increase in the size
of thyroid during menstruation . if u were the doctor there, what
would u do ?
answer : I would tell her that it is perfectly normal for the size of a
woman's thyroid to increase during menstruation .
10. a pregnant woman came to ur clinic with complaints of enlarged
thyroid . what would you suggest ?
answer : I would tell her that there is nothing to worry , because it is
absolutely normal for a woman's thyroid to enlarge during pregnancy
and menstruation .
11. how will you normally estimate the size of the thyroid gland ?
answer : by doing diagnostic ultrasound .
12. As I already told u women have heavier thyroids than men, hence
the volume of thyroid in women is slightly more than in men. But
there is a phase of life in both males and females where no significant
difference between the volumes of the male and female thyroid was
observed. When is that phase ?
answer : from 8 months to 15 years . between these ages the volumes
of both male and female thyroid show no significant difference .
13. what is the shape of the lobes of the thyroid gland ?
answer : approximately conical .
14. the bases of the thyroid lobes are level with which tracheal
cartilage ?
, answer : 4th or 5th tracheal cartilages .
15. what is the length of each thyroid lobe ?
answer : 5cms long .
16. the posteromedial aspects of the thyroid lobes are attached to
which structure ?
answer : cricoid cartilage .
17. what is the name of the ligament which attaches the lobes of
thyroid to the cricoid cartilage posteromedially ?
answer : lateral thyroid ligament .
18. what is the part of the thyroid that connects the lower parts of the
two lobes called ?
answer : isthmus .
19. what would you suggest to a healthy patient who has no isthmus ?
answer : I would suggest that it is physiologically normal for a person
to be born without an isthmus and this happens occasionally . I would
assure him that there is nothing to worry .
20. what is the length of the isthmus ?
answer : 1.25 cms transversely and vertically .
21. the isthmus normally lies anterior to which tracheal cartilages ?
answer : it usually lies anterior to second and third tracheal cartilages.
( it can lie slightly higher or slightly lower sometimes because of the
variations in size and site of the thyroid gland )
22. what is the tumor marker of the medullary carcinoma of the
thyroid?
answer : calcitonin .
23. what is the most common position of the thyroglossal cyst ?
answer : below the hyoid bone . ( check again ).
