Chapter 28/29 quiz

How long is the secondary oocyte viable and capable of being fertilized after it is ovulated

12-24 hours

In fetal circulation, one way in which blood bypasses the nonfunctional lungs is by way of the

Foramen ovale

Stimulates release of FSH and LH from the anterior pituitary gland

GnRH

Stimulates testosterone production in testis

LH

Milk ejection (the letdown reflex) is stimulated by which hormone associated with pregnancy

Oxytocin

Helps maintain the endometrium in preparation for implantation

Progesterone

Which is not assessed as part of the Apgar score

Temperature

Polyspermy in humans results in

a nonfunctional zygote

Alleles are

alternate forms of a gene

prepares mammary glands for lactation

estrogen and progesterone

Which hormone maintains the viability of the corpus luteum

human chorionic gonadotropin

The embryo forms from the

inner cell mass of blastocyst

Muscle tissue is formed by the

mesoderm

The expressed form of a gene is described as the organisms

phenotype

Stimulates lactation

prolactin

Genes express

traits

Which method of contraception is most reliable

vasectomy