Changes

Oxytocin stimulates Milk let down via Contraction of the mammary alveoli. It does NOT stimulate milk ''synthesis'' ([[Pituitary Gland - Anatomy & Physiology#Hormones of the Anterior Pituitary Gland|Prolactin]] has this role).

Oxytocin stimulates Milk let down via Contraction of the mammary alveoli. It does NOT stimulate milk ''synthesis'' ([[Pituitary Gland - Anatomy & Physiology#Hormones of the Anterior Pituitary Gland|Prolactin]] has this role).

Oxytocin release occurs via neural activity. The teats have a high density of sensory nerve fibres, and these detect suckling, or preparation for milking. Other sensory inputs such as sight, smell, sounds of calf can add to the process:

Oxytocin release occurs via neural activity. The teats have a high density of sensory nerve fibres, and these detect suckling, or preparation for milking. Other sensory inputs such as sight, smell, sounds of calf can add to the process:

*Impulses travel via superfical [[Nervous System - Sensory Pathways - Anatomy & Physiology|sensory pathways]] and the inguinal nerve.  

*Impulses travel via superfical [[Sensory Pathways - Anatomy & Physiology|sensory pathways]] and the inguinal nerve.  

*Afferent sensory neurons enter the lumbar part of the spinal cord to the thalmus.

*Afferent sensory neurons enter the lumbar part of the spinal cord to the thalmus.

*They reach the cell bodies of neuroendocrine cells

*They reach the cell bodies of neuroendocrine cells