State the location and function of the following structures in mammals:
(i) Villi - Leaving Cert Agricultural Science - Question f - 2016
Question f
State the location and function of the following structures in mammals:
(i) Villi.
(ii) Nephrons.
(iii) Cervix.
Worked Solution & Example Answer:State the location and function of the following structures in mammals:
(i) Villi - Leaving Cert Agricultural Science - Question f - 2016
Step 1
(i) Villi.
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Answer
Villi are located in the small intestine, specifically within the duodenum and ileum. Their primary function is the absorption of nutrients, increasing the surface area available for this process.
Step 2
(ii) Nephrons.
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Answer
Nephrons are located in the kidneys. They are responsible for filtering blood, producing urine, and reabsorbing essential substances as well as contributing to osmoregulation.
Step 3
(iii) Cervix.
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Answer
The cervix is located at the neck of the uterus, serving as the connection between the uterus and the vagina. It plays several roles, including sealing the womb, dilating during birth, and allowing sperm to enter the uterus while permitting fluids to exit.
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