Module 16 (HOOAH!) Flashcards
Spermatogenesis
The process by which sperm form in the testes.
Semen
A mixture of sperm and the secretions of the testes, seminal vesicles, prostate gland, and bulboutethral glands.
Secondary Sex Characteristics
The characteristics that appear at puberty and tend to distinguish men from women. These include the development of breasts (female), hairline patterns, facial shape, body shape, pitch of voice, and the distribution of body hair.
Puberty
A series of events that transforms a child into a sexually mature adult.
Anabolism
All of the synthesis reactions that occur in the body.
Catabolism
All of the decomposition reactions that occur in the body.
Spermatogonium
A cell that begins spermatogenesis by undergoing mitosis.
Secondary Oocyte
A cell that will not complete meiosis II unless fertilization occurs.
Sustentacular (Sertoli) Cell
A cell that nourishes and feeds other cells during spermatogenesis.
Mesoderm Cell
One of the three types of cells formed during the gastrula phase.
Interstitial Cells (Leydig Cells)
A cell that secretes testosterone.
Spermatid
A cell in the testes that has 23 chromosomes.
Trophoblast
A cell that will eventually be a part of the placenta in a fetus.
Do the egg and sperm contribute equal amounts of genetic material?
They each contribute equal amounts of nuclear DNA, but the ovum also contributes mitochondrial DNA.
List the stages of development
Zygote, cleavage, morula, blastula, gastrula, and neurula.