Morphology Of Flowering Plants Root Stem And Leaf Question 541
Question: Contraction of sternohyal muscles during breathing in frog [CBSE PMT 1992]
Options:
A) Closes glottis
B) Opens the nostrils
C) Raises floor of oral cavity
D) Lowers floor of oral cavity
Show Answer
Answer:
Correct Answer: D
Solution:
Throat is lowered and raised alternatively by sternohyal and petrohyal muscles.
BETA
