Juxtaglomerular Cell

Specialized smooth muscle cells in the afferent arteriole of the kidney, responsible for synthesizing, storing, and secreting renin.

Key Functions:

• Secretes renin in response to decreased blood pressure or sodium levels.
• Part of the juxtaglomerular apparatus.
• Plays a crucial role in regulating blood pressure and fluid balance via the renin-angiotensin-aldosterone system.

Interacting Systems & Components:

• Kidney (located in)
• Renin (secretes)
• Macula Densa (part of juxtaglomerular apparatus with)
• Circulatory System (regulates blood pressure)