Register
In humans which embryonic structure develops into ear canals and the eustachian tubes? A. pharyngeal slits B. notochord C. myotomes D. post axal tail
162k views
2 votes
In humans which embryonic structure develops into ear canals and the eustachian tubes?

A. pharyngeal slits
B. notochord
C. myotomes
D. post axal tail

User Joachim Rohde
by
5.5k points

2 Answers

1 vote

Answer:

A. pharyngeal slits

Step-by-step explanation:

User SteveMellross
by
4.4k points
4 votes

Answer:

I think A

I hope this is help

Step-by-step explanation:

The Eustachian tube originates from the tubotympanic recess, an embryonic structure derived from the first pharyngeal and second endodermal pouches. The proximal portion of the tubotympanic recess forms the tympanic cavity, and its distal portion becomes the Eustachian tube.

User Peacemaker
by
5.3k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.2m questions

6.8m answers

Other Questions

An example of the interaction of the nervous and endocrine systems can be seen in our response to danger. The _______________ orders the adrenal glands to release the hormones epinephrine and norepinephrine,
When an individual stops breathing, brain cells die very quickly, but the cells in the heart are able to survive for longer. Which conclusion is best supported by these facts?
1. Nutrients move from the digestive system into the blood by traveling through ___________, tiny tubes sticking out of the wall of the small intestine. 2. In the body's excretory system, urea and water
Greg has been given a small sample of metal. His teacher has assigned him to identify what type of metal he was given. Which of the following is a physical property that will help Greg to identify the
When smaller molecules are bonded together to create larger ones, the smaller molecules are called _and the larger molecules that they build are called​
Link Copied!