Question

Label the following layers around ovum properly. 

• A. A - Zona Pellucida; B - Corona Radiata; C - Perivitelline Space.
• B. A - Corona Radiata; B - Zona Pellucida; C - Perivitelline Space.
• C. A - Corona Radiata; B - Perivitelline Space; C - Zona Pellucida.
• D. A - Perivitelline Space; B - Zona Pellucida; C - Corona Radiata.

Hint:

The layers surrounding the ovum—corona radiata, perivitelline space, and zona pellucida—play crucial roles in protection, fertilization, and sperm binding.

Answer 1

The Correct Option is C

Step 1: Identify ovum's surrounding layers.
The ovum has three main layers: 

Corona Radiata: Outermost layer of follicular cells, providing nutrients and protection. 

Perivitelline Space: Fluid-filled area between the zona pellucida and the ovum's cell membrane.

 Zona Pellucida: Glycoprotein layer surrounding the ovum's plasma membrane, critical for sperm attachment and fertilization. 

Step 2: Correlate labels with layers. 
Based on the image:

 A: Indicates the corona radiata, the outermost layer. 

B: Identifies the perivitelline space, located between the zona pellucida and the ovum. 

C: Denotes the zona pellucida, the glycoprotein layer. 

Step 3: Finalization. 
The accurate identification is: \[ A - Corona Radiata, B - Perivitelline Space, C - Zona Pellucida. \] \[ \therefore \text{The correct answer is: (C)}. \]