suprarenal gland (anatomically)
Post on 24-Feb-2016
65 Views
Preview:
DESCRIPTION
TRANSCRIPT
{
Suprarenal Gland(Anatomically)
Nur Athirah binti Mohd Azhar D11A024Nur Alyaa binti Khairil AnwarD11A023
Paired Lie in the abdominal cavity close to the
craniomedial border of the kidneys Located in a retroperitoneal position at
the roof of abdomen. Superior to kidney (renal) but have no
functional relationship with kidney. Surrounded by adipose tissue and renal
fascia. The connective tissue capsule extends into the gland as thin trabeculae of loose vascular reticular connective tissue.
Known as adrenal gland
Structure of Suprarenal Gland
Properties Divided into1. Outer cortex (derived from
mesenchyme)2. Inner medulla (derived from
neural crest cells)
These parts are responsible in hormonal regulation, according to their histological structure :
- Medulla :- Cortex : corticosteroid,
androgen
CORTEX Produce 3 main groups of hormones1. Glucocorticoids (regulate
carbohydrate metabolism)2. Mineralocorticoids (maintain
electrolyte concentration in the ECF)3. Androgens (posses the same
masculinizing effect as testosterone)
MEDULLA Norepinephrine,
epinephrine ( fight or flight responses)
Blood supply comes from three arteries ;
- superior suprarenal artery from inferior phrenic artery- middle suprarenal artery from abdominal artery- inferior suprarenal artery from renal artery
Left adrenal gland of a pig
<<<< paramedian section
Outer Surface>>>>
ADRENAL GLAND IN DIFFERENT SPECIES
Right adrenal Gland of an ox
Outer surface>>>>
<<<< Paramedian section
top related