Step 1: Understand the function of movement in the female fallopian tract.
The female fallopian tubes (also known as oviducts) are crucial for the transport of the ovum (egg) from the ovary towards the uterus after ovulation. This transport is essential for fertilization and subsequent implantation.
Step 2: Analyze the different types of movement listed in the options in the context of the fallopian tube.
(A) Flagellate: This type of movement is achieved by flagella, which are long, whip-like structures. This is characteristic, for example, of sperm cells. The cells lining the fallopian tubes do not possess flagella for their propulsive movement.
(B) Ciliated: This type of movement is facilitated by cilia, which are numerous short, hair-like projections that extend from the surface of cells. The inner lining (epithelium) of the fallopian tubes is indeed covered with ciliated cells. These cilia beat in a coordinated, wave-like motion, creating a current that helps to sweep the ovum (egg) along the tube towards the uterus. In addition to ciliary action, peristaltic contractions of the muscular walls of the fallopian tubes also aid in egg transport.
(C) Amoeboidal: This type of movement involves the extension and retraction of pseudopods (false feet) and a flowing motion of the cytoplasm, typically seen in single-celled organisms like amoebas or certain animal cells (e.g., macrophages). This is not the mechanism for transport within the fallopian tube.
(D) None: This option is incorrect because ciliary movement is a well-established and vital mechanism for transport within the fallopian tubes.
Step 3: Conclude the correct type of movement.
The primary mechanism for the movement of the ovum within the female fallopian tract is due to the beating action of the cilia lining its walls.