Hypothalamus -pituitary-
feedback control
Endocrine System
coordinates life sustaining responses.
Secretes hormones
hormones important in controlling growth, reproduction & stress adaptation
Hypothalamus & Pituitary gland
Both form a unit as the dominant component of the endocrine system.
Regulates function of : (TAR)
Thyroid
Adrenal gland
Reproductive glands
Responsible for
Somatic growth
lactation
Milk secretion
Helps maintain body fluid homeostasis.
Hypothalamus
Below thalamus and above pituitary on either side of 3rd ventricle.
Receives & transmits signals form many diverse sources.
External
Sensory pathways conveying info on external environment.
Emotional, instinctual,appetite
Connections with CNS
Hypothalamus -pituitary- feedback control 1
, Internal
produced through ANS & endocrine system
Receptors of body temp, osmolarity, pressure, vol, glucose conc. hormone
conc.
Pituitary Gland/Hypophysis
small
lies in sella turcica
divisible in 2 portions:
Ant.pituitary/ adenohypohysis
post.pituitary/neurohypophysis
2 portions embryologically originate from diff sources
Ant.Pituitary
Arises from Rathke’s pouch in pharynx
Responsible for epitheloid nature of its cell
Post.Pituitary
Arises from neural tissue outgrowth from the hypothalamus
large num of glial-type cell.
Hypothalamus -pituitary- feedback control 2
feedback control
Endocrine System
coordinates life sustaining responses.
Secretes hormones
hormones important in controlling growth, reproduction & stress adaptation
Hypothalamus & Pituitary gland
Both form a unit as the dominant component of the endocrine system.
Regulates function of : (TAR)
Thyroid
Adrenal gland
Reproductive glands
Responsible for
Somatic growth
lactation
Milk secretion
Helps maintain body fluid homeostasis.
Hypothalamus
Below thalamus and above pituitary on either side of 3rd ventricle.
Receives & transmits signals form many diverse sources.
External
Sensory pathways conveying info on external environment.
Emotional, instinctual,appetite
Connections with CNS
Hypothalamus -pituitary- feedback control 1
, Internal
produced through ANS & endocrine system
Receptors of body temp, osmolarity, pressure, vol, glucose conc. hormone
conc.
Pituitary Gland/Hypophysis
small
lies in sella turcica
divisible in 2 portions:
Ant.pituitary/ adenohypohysis
post.pituitary/neurohypophysis
2 portions embryologically originate from diff sources
Ant.Pituitary
Arises from Rathke’s pouch in pharynx
Responsible for epitheloid nature of its cell
Post.Pituitary
Arises from neural tissue outgrowth from the hypothalamus
large num of glial-type cell.
Hypothalamus -pituitary- feedback control 2
