Presentation on theme: "The part of the brain that issues instructions to the pituitary gland is the 1.Hypothalamus 2.Cerebellum 3.Cerebrum 4.Brain stem."— Presentation transcript:
The part of the brain that issues instructions to the pituitary gland is the 1.Hypothalamus 2.Cerebellum 3.Cerebrum 4.Brain stem
In a negative feedback mechanism, high levels of a hormone 1.Inhibit production of more hormone 2.Stimulate production of more hormone 3.Increase nerve impulses 4.Decrease nerve impulses
Sperm cells are produced by meiosis in the 1.Epdidymis 2.Vas deferens 3.Seminiferous tubules 4.Scrotum
The gamete-producing organs of the female reproductive system is the 1.Corpus luteum 2.Fallopian tube 3.Ovary 4.Seminiferous Tubule
A typical adult male 1.Is born with all the sperm he will ever produce. 2.Produces sperm during a monthly cycle. 3.Produces several hundred million sperm each day. 4.Both (1) and (3)
After sperm mature, they move into the urethra by way of the 1.Penis 2.Vas deferens 3.Seminal vesicles 4.Testes
Menstruation in humans usually occurs 1.About 28 days after ovulation 2.About 14 days after ovulation 3.Following fertilization of egg.
The testes 1.Produce Sperm 2.Secrete testosterone 3.Located in the scrotum 4.All of the above
The fallopian tubes 1.Secrete estrogen 2.Produce eggs 3.Are where the Ovum travels through 4.All of the above
This is where implantation occurs. 1. 2. 3. 4. 5. 6.
This structure secretes an alkaline fluid to neutralize the acidity in the female reproductive tract. 1. 2. 3. 4. 5. 1 2 3 4 5
What is an advantage of asexual reproduction? 1.Results in variation. 2.Uses a lot of energy to find a mate. 3.More offspring are produced over a short period of time. 4.Requires male and female gametes.
Once hormones are produced they are secreted into the… 1.Nerves 2.Endocrine glands 3.Ovaries 4.Bloodstream
At what stage has the egg been released into the fallopian tube? 1.Menstruation 2.Follicular Stage 3.Corpus Luteum Stage 4.At any point in the cycle
Identical twins result from 1.One fertilized egg. 2.Two fertilized eggs. 3.One Egg fertilized by 2 sperm. 4.Two Eggs fertilized by 1 sperm.
When does ovulation occur? 1.Surge in FSH levels. 2.Surge in LH levels 3.Surge in Estrogen levels. 4.Surge in Progesterone level.
FSH has a direct effect on what ovarian event? 1.Formation of the corpus luteum 2.Disintegration of the uterine lining 3.Development of the follicle 4.Secretion of progesterone
The formation of the corpus luteum coincides with what other event? 1.The growth of the follicle 2.A rise in the level of progesterone in bloodstream. 3.The disintegration of uterine lining. 4.Menstruation
Disintegration of the endometrium is caused by a decrease in this hormone. 1.FSH 2.LH 3.Progesterone 4.Testosterone
Which of the following is the correct pathway of the sperm out of the male’s body? 1.A B C D 2.C B E AB 3.E AB AC D 4.AC C A B
Which of the female hormones are pituitary hormones? 1.FSH 2.Estrogen 3.Progesterone 4.Testosterone
There are 2 hormones A and B, how would they interact during negative feedback? 1.If hormone A increases, hormone B increases 2.If hormone A increases, hormone B decreases 3.If hormone A increases, nothing happens to hormone B
Which of the following set of hormones would be elevated during pregnancy? 1.HCG and progesterone 2.LH and progesterone 3.LH and HCG 4.FSH and progesterone
Sexual reproduction ensures survival of a population in the face of environmental challenges 1.True 2.False
What is another name for a fertilized egg? 1.Blastula (blastocyst) 2.Gastrula 3.Gamete 4.Zygote
When this hormone increases, it signals the pituitary gland to stop making FSH 1.LH 2.Progesterone 3.HCG 4.Estrogen