posterior pituitary
Học thuậtThân thiện
Definition
- Noun:
- A neuroendocrine organ: The "posterior pituitary" is the posterior lobe of the pituitary gland. It is primarily a storage and release site for hormones produced by the hypothalamus, rather than being a glandular tissue that synthesizes its own hormones.
Usage Examples
- Noun:
- The posterior pituitary releases oxytocin and vasopressin into the bloodstream.
- Damage to the posterior pituitary can lead to diabetes insipidus.
- The hormone ADH is stored in and secreted from the posterior pituitary.
Advanced Usage
"Posterior pituitary function": Refers to the role of this organ in hormone regulation.
- The study focused on posterior pituitary function in water balance.
"Posterior pituitary extract": A historical term for a preparation derived from this tissue.
- Early experiments used posterior pituitary extract to study its effects.
Variants and Related Words
Neurohypophysis (n): An alternative anatomical name for the posterior pituitary.
- The neurohypophysis is the neural part of the pituitary gland.
Posterior pituitary gland: A fuller term specifying it as part of the endocrine gland system.
- The posterior pituitary gland is connected to the hypothalamus via the pituitary stalk.
Synonyms
- Pars nervosa: A specific histological term for the tissue of the posterior lobe.
- Hypophysis, posterior lobe: Descriptive synonyms.
Related Phrases
Posterior pituitary hormone: Refers to the hormones (oxytocin, vasopressin) associated with this lobe.
- Posterior pituitary hormones are crucial for childbirth and kidney function.
Posterior pituitary disorder: A medical condition affecting this part of the gland.
- The patient was diagnosed with a posterior pituitary disorder.
Noun
- the posterior lobe of the pituitary body; primarily glandular in nature