Endocrine Flashcards
Label this diagram
Label the diagram
1 = Hypothalamus
2 = Pituitary gland
3 = Optic chiasm
4 = Thalamus
5 = Sphenoid air sinus
What therefore would the resultant visual field defect be due to pituitary gland enlargement?
Bitemporal hemianopia
How do we differentiate anterior and posterior pituitary gland?
Anterior vs posterior?
- Posterior is a continuation of the pituitary stalk
- Anterior pituitary is larger, glandular- develops from the branchial arches
Label this diagram
- pituitary stalks
- Mamillary bodies
Which is the larger of the two lobes?
Anterior pituitary gland
What is the blood supply to the anterior pituitary?
Branches of the internal carotid artery – the superior hypophysial artery
The superior hypophysial artery enters into the substance of the hypothalamus before breaking up into capillaries (the hypophysial portal system). These capillaries then supply the anterior pituitary gland.
The inferior hypophysial artery supplies the posterior pituitary gland.
Complete the labels
where do the hypothyseal veins drain
Into the cavernous sinus
Describe the arterial supply to the anterior pituitary gland and the posterior pituitary gland
AP: Superior hypophyseal artery (branch of the internal carotid A)
PP: Superior hypophyseal artery, infundibular artery and inferior hypophyseal artery.
Between what vertebral levels do we find the thyroid gland
located between the vertebral level of C5 - T1, and between the cricoid cartilage and the 6th tracheal ring.
Location of the isthmus
Opposite the 2nd to 3rd tracheal rings
Complete the diagram
Fill in the blanks
complete the blanks