Sympathetic sypply to organs L10

Question 1

mention the origin and relay of the sympathetic supply to the pelvis:

Answer 1

• origin: L1-L3
• relay: inferior mesenteric & hypogastric ganglia

Question 2

what are the functions of sympathetic sypply to the urinary bladder?

Answer 2

• walls relaxation
• internal urethral sphincter contraction
  urine retention

Question 3

what are the functions of sympathetic sypply to the rectum?

Answer 3

• relaxation of its walls
• contraction of internal anal sphincter
  retention of faeces

Question 4

what are the effects of sympathetic sypply to the male sex organs?

Answer 4

• VC of pelvic vescera (احشاء الحوض) & external sex organs → shrinkage of penis (انكماش القضيب)
• contraction of smoth muscles in the walls of (seminal vesicle, epididymis, vas-deferens & ejaculatory duct → ejaculation

Question 5

where is the origin of the upper limb sympathetic sypply?

Answer 5

LHCs of T2-T9

Question 6

where is the origin of the lower limb sympathetic sypply?

Answer 6

LHCs of T10-L2

Question 7

what is the origin of thoracic and abdominal walls sympathetic supply?

Answer 7

LHCs of T1-L2

Question 8

what are the functions of the sympathetic sypply to somatic structures?

Answer 8

• VC of blood vessels
• hair erection
• sweat secretion