Advertisements
Advertisements
Question
Answer the following question.
What enables the ear pinna to be folded and twisted while the nose tip can’t be twisted?
Advertisements
Solution
- The ear pinna (outer ear) is made up of a thin plate of elastic cartilage and is connected to the surrounding parts by ligaments and muscles. This elastic cartilage gives support and maintains the shape of pinna.
- The nose tip is made up of elastic cartilage. However, several bones and cartilage make up the bony cartilaginous framework of the nose.
Hence, even though the tip of the nose is made up of elastic cartilage, it cannot be twisted like the ear pinna due to the presence of a bony-cartilaginous framework.
APPEARS IN
RELATED QUESTIONS
Distinguish between Cardiac muscle and striated muscle
Write true or false of the statement. Rewrite the false statement correctly.
Cardiac muscles have dark and light bands.
Name the three kinds of muscles found in the human body. In each case, name one region in the body where they are found.
Give structure, types and functions in brief of the following:
Muscular tissue
Which muscles act involuntarily?
- Striated muscles
- Smooth muscles
- Cardiac muscles
- Skeletal muslces
Voluntary muscles are found in
Lining of kidney tubules is made up of ______.
Striated and non-striated tissues are types of epithelial tissues.
Assertion: Non-striated muscles are said to be voluntary in nature.
Reason: Non-striated muscles are under the control of our will.
Muscles responsible for the movement of food in the stomach are
