Question:
Identify the muscles that are ectodermal in origin:
Identify the muscles that are ectodermal in origin:
Show Hint
Eye muscles (iris, ciliary) are ectodermal; most others are mesodermal.
Updated On: Jun 20, 2026
- Intercostal muscles and phrenic muscles
- Cardiac muscles
- Muscles of iris and ciliary body
- Muscles of intestine
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding germ layer origin.
Muscles in the human body are generally derived from mesoderm, except few special cases.
Step 2: Ectodermal derivatives.
Ectoderm forms structures like nervous system and certain specialized eye muscles.
Step 3: Iris and ciliary muscles origin.
Muscles of iris and ciliary body develop from ectoderm (neuroectodermal origin), unlike skeletal and smooth muscles.
Step 4: Evaluating other options.
- Intercostal muscles: mesodermal.
- Cardiac muscles: mesodermal.
- Intestinal muscles: mesodermal smooth muscles.
Step 5: Logical reasoning.
Only eye-associated muscles arise from ectodermal origin.
Step 6: Final conclusion.
Thus, correct answer is muscles of iris and ciliary body.
Muscles in the human body are generally derived from mesoderm, except few special cases.
Step 2: Ectodermal derivatives.
Ectoderm forms structures like nervous system and certain specialized eye muscles.
Step 3: Iris and ciliary muscles origin.
Muscles of iris and ciliary body develop from ectoderm (neuroectodermal origin), unlike skeletal and smooth muscles.
Step 4: Evaluating other options.
- Intercostal muscles: mesodermal.
- Cardiac muscles: mesodermal.
- Intestinal muscles: mesodermal smooth muscles.
Step 5: Logical reasoning.
Only eye-associated muscles arise from ectodermal origin.
Step 6: Final conclusion.
Thus, correct answer is muscles of iris and ciliary body.
Was this answer helpful?
0
0
Top AP EAPCET Biology Questions
- In which group of algae are food materials stored in pyrenoids?
- Which plant hormone is responsible for apical dominance?
- The genetic material in bacteriophages is:
- Which of the following is the structural and functional unit of the kidney?
- Which of the following organisms exhibits alternation of generations?
View More Questions
Top AP EAPCET Classification of animals Questions
- Identify the wrong statement regarding ICBN:
- The branch of botany which helps in understanding the course of evolution in plants is:
- Following is not a common feature in both ferns and Gymnosperms:
- Some plants of the following family have swollen leaf base:
- Choose the incorrect statement:
View More Questions
Top AP EAPCET Questions
- A body is projected from the ground at an angle of $\tan^{-1} \left( \frac{8}{7}\right)$ with the horizontal. The ratio of the maximum height attained by it to its range is
- The four quantum numbers of the valence electron of potassium are :
- A lens forms real and virtual images of an object, when the object is at $u_{1}$ and $u_{2}$ distances respectively. If the size of the virtual image is double that of the real image, then the focal length of the lens is (take, the magnification of the real image as $m$ )
- Two spheres $P$ and $Q$, each of mass $200\, g$ are attached to a string of length one metre as shown in the figure. The string and the spheres are then whirled in a horizontal circle about $O$ at a constant angular speed. The ratio of the tension in the string between $P$ and $Q$ to that of between $P$ and $O$ is $(P$ is at mid-point of the line joining $O$ and $Q$ )
- The volume of $0.02\, M$ acidified permanganate solution required for complete reaction of $60\, mL$ of $0.01\, MI^{-}$ ion solution to form $I_2$ in $mL$ is
View More Questions