Answer:
The correct option is: D. epiglottis
Explanation:
The epiglottis is a cartilaginous leaf-shaped structure of the larynx that is composed of elastic cartilage. It's shape is similar to the shape of the purslane leaf and is found in the throat of a human, <u>behind the tongue and the hyoid bone.</u>
It prevents the food from entering the trachea and is covered with the mucous membrane.The stem of epiglottis is attached to the thyroid cartilage.
The factors that associates the causes for central nervous system defects are:
- Unbalanced cerebrospinal fluid
- Deformation of the neural tube during embryonic development
Problems originating from an imbalance of CSF fluid (such as hydrocephalus) and a variety of disorders developing from abnormalities of the neural tube during embryonic development are examples of central nervous system defects (often called neural tube defects). The other choices do not result in central nervous system flaws.
<h3><u>What are cogenital disorders ?</u></h3>
An illness that is present from birth is referred to as congenital. Environmental or hereditary factors may contribute to congenital diseases. They occasionally have very little, if any, influence on a child's health and development. A kid with a congenital condition, however, may live with a handicap or health issues all of their lives.
If you're pregnant or planning a pregnancy, it's normal to be worried about congenital abnormalities, especially if that disorder runs in your family. While not all congenital abnormalities can be detected during pregnancy, some may be, and there are steps you can do to lessen the likelihood that your child will be born with one.
To view about congenital disorders, refer to: brainly.com/question/16036652
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Answer:
Surfactant is the mixture of lipids, carbohydrates and proteins. It is produced in Lungs by epithelial cells.
Explanation:
i) It act to decrease the surface tension at the air liquid interface.
ii) It support air breathing.
iii) It enhances mucus clearance.
