Only one sperm cell unites with the ovum, penetrating the follicular cells and a layer called the ________ ________, which surrounds the cell membrane of the ovum.
Fill in the blank(s) with the appropriate word(s).
zona pellucida
Although many sperm cells normally reach an ovum, only one sperm cell unites with the ovum, penetrating the follicular cells and a layer called the zona pellucida, which surrounds the cell membrane of the ovum.
You might also like to view...
Acute or chronic infection of the renal medulla and upper urinary tract resulting from untreated cystitis is:
A) nephritis. B) pyelonephritis. C) hydronephrosis. D) acute renal failure.
When the platelets become sticky and adhere to the inner lining of an injured vessel, they are called a:
A. cascade B. seal C. platelet plug D. net
The specialty concerned with the pathology and morphology of the dental pulp and surrounding tissues is __________
a. orthodontics b. pediatric dentistry c. endodontics d. periodontics
Infant care upon birth is provided to __________ patients, and if necessary they also receive neonatal intensive care (either within the hospital or as the result of transfer to another hospital)
a. ancillary b. emergency c. newborn d. obstetrical