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

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

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