Which of the following structures contains enzymes that help a sperm to penetrate the cell membrane of an ovum?
a. Head
b. Acrosome
c. Neck
d. Tail
Ans: b. Acrosome
Anatomy & Physiology
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Constrict means to close
Indicate whether the statement is true or false
Anatomy & Physiology
Gliding is an example of an angular motion.
Answer the following statement true (T) or false (F)
Anatomy & Physiology
A class-2 MHC molecule is used to present a foreign antigen to ________.
A. cytotoxic T cells B. regulatory T cells C. B lymphocyte D. helper T cells
Anatomy & Physiology
In order to return acidic blood pH to normal, breathing becomes deeper and more rapid, a phenomenon known as ________
A) hypoventilation B) hyperventilation C) apnea D) dyspnea
Anatomy & Physiology