MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Skeletal Muscles

In man, the m...

Question

In man, the muscles which move the pinnae are

A

Absent

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Vestigial

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

More functional

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

None of the above

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Vestigial
Many mammals can move the pinna (with the auriculares muscles) in order to focus their hearing in a certain direction. Most humans, unlike most other mammals, do not have this ability. So, it is vestigial in human.

Suggest Corrections

thumbs-up

0

Similar questions

Q. In the rabbits, the muscles which move the pinnae are

Q. Assertion :Ear muscles of the external ear in man are poorly developed. Reason: These muscles are useful which move external ear freely to detect sound efficiently.

Statement 1: Deafness is caused due to rupturing of the pinna.

Statement 2: Ciliary muscles regulate the size of the pupil.

Q. In humans, attached earlobes are a dominant feature over free earlobes while hypertrichosis of the ear is a holandric (Y-linked) feature. A man with attached earlobes and extensive hair on pinna married a woman having free earlobes. The couple had one son with attached earlobes and hairy pinna, another son with free earlobes and hairy pinna and two daughters with attached earlobes. One of the daughters married a man with free earlobes and sparse hair on pinna. They had two Sons. What would be the characteristics of their pinnae?

Pinnae are present in:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Muscle Tissue

BIOLOGY

Watch in App

explore_more_icon

Explore more

Skeletal Muscles

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon