Question

Mention the location and the functions of the following:
i.Fallopian tube
ii.Sympathetic nerves
iii. Hepatic portal

Answer 1

Dear Student,

Fallopian Tube-

• Location- Fallopian tubes are long narrow ducts located in the abdominal cavity of the human female. It has four parts- Fimbria, Infundibulum, Ampulla, and Isthmus.
• Functions-
  • Fertilization (the fusion of male & female gametes) takes place here.
  • Fertilized ovum travels towards the uterus through the fallopian tube.
  • Occasionally ectopic pregnancy occurs here.

Sympathetic nerves-

• Location-
  • The Sympathetic nervous system has paired chains of ganglia and other visceral ganglia.
  • Its preganglionic fibers are shorter than the postganglionic fibers.
  • Its preganglionic fibers originate from the spinal cord.
• Functions-
  • Each preganglionic fiber forms synapses with many postganglionic fibers, so many organs are affected.
  • Its postganglionic fibers are adrenergic i.e., release the neurotransmitter noradrenaline.
  • It stimulates the medulla of the adrenal glands to release epinephrine and norepinephrine.

Hepatic Portal-

• Location- Hepatic portal system consists of veins carrying blood from digestive parts like the stomach, intestine, spleen, etc, to the liver.
• Functions- It carries substances absorbed from the intestines to the liver where their detoxification takes place before returning to the heart.

Regards