Question

Which part of the pituitary is neurohaemal organ?
a) Pars distalis
b) Infundibulum
c) Pars nervosa
d) Pars intermedia

Answer 1

Pars Nervosa b. Pars Eminentia = Median Eminence (ME) (PN) I. HP axes B. Pituitary anatomy Stores nonapeptide hormones Stores RHs & RIHs Oxytocin (OXY) & arginine vasopressin (AVP)  

Answer 2

Answer:

c. Pars nervosa

Explanation:

• The neurohemal organ is the posterior pituitary for neurosecretory cells of the brain.

• Pars nervosa is the posterior lobe or the neural lobe which makes most of the area of the posterior pituitary.
• Oxytocin and vasopressin are stored in Pars nervosa.
• The infundibular process forms the bulk of the neurohypophysis which is the posterior pituitary.
• Thus pars nervosa of the pituitary is the neurohemal organ.