Name:_______________________________ Unit #10: Human Body Systems The Male Reproductive System & Human Fetal Development – Notes There are 2 main f_________________ of the male reproductive system: 1) p______________ s________ c_________ 2) d______________ sperm to the female reproductive system Main organs of the M_________ Reproductive System: Organs of the Male Reproductive System: Organ Functions: Produce sperm and male hormones; 2= testes Sit above (epi= top) of each testis; where s________ go to m__________ Tube that sperm t____________ through, from epididymis to penis • Provide n________________/f_________ for sperm Testi Epi didymis Vas deferens: Seminal vesicle and prostate gland: urinary bladder vas deferens prostate gland penis urethra testis scrotum epididymis rectum seminal vesicle
Transcript
Name:_______________________________Unit #10: Human Body Systems
The Male Reproductive System & Human Fetal Development – Notes
There are 2 main f_________________ of the male reproductive system:
1) p______________ s________ c_________
2) d______________ sperm to the female reproductive system
Main organs of the M_________ Reproductive System:
seminal vesicle
rectum
epididymisscrotumtestis
urethra
penis
prostate gland
vas deferens
urinary bladder
Organs of the Male Reproductive System:
Organ Functions:
Produce sperm and male hormones; 2= testes
Sit above (epi= top) of each testis; where s________ go to m__________
Tube that sperm t____________ through, from epididymis to penis
• Provide n________________/f_________ for sperm
Male organ to d______________ s___________ into vagina of female.
Tube in penis where s________ AND u________ will l__________ male body.
(*separate in females!)
Testis:
Epididymis:
Vas deferens:
Seminal vesicle and prostate gland:
Penis:
Urethra:
Testes -> epididymis -> Vas deferens -> urethra
EOC Review:Sperm are created through meiosis in an area of the testes called the seminiferous tubules. Through which structure do the sperm travel to exit the testes?
A. Vas deferens
B. Seminiferous tubules
C. Scrotum
D. Epididymis
Testosterone has 2 main functions.
1) Developing male sexual characteristics
2) Producing s__________
F____________-s_________________ h________________ (FSH) and
l_______________ h__________ (LH) are found in BOTH males and females.
Females: FSH, LH and estrogen regulate e________ production.
Males: FSH, LH, and testosterone stimulate s___________ p___________________.
Sperm Pathway
Main M________ Hormone: T_________________
Other important hormones:
Name: _____________________________________
F________________ occurs when a sperm cell joins an egg cell.
Sperm penetrates an egg.
o Nucleus of sperm joins with egg
o Zygote formed
Which of the following describes fertilization?
A. Cell differentiation to form a blastula
B. Formation of eggs in the ovaries
C. A sperm joining an egg to form a zygote
D. Sperm and egg production
Human Fetal Development
5 to 7 days to uterus
Enters uterus
ovary
**Implantation or passes out of body through cervix, then vagina
egg released from ovary
egg cell
Travels through Fallopiantube
**Site of fertilization!
1)
2) 3)
EOC Review:
Development progresses in stages from z______ to
f_________.
A zygote begins M__________after fertilization and is called a b_____________ (ball of cells) Once the zygote i______________ in the u__________, it is called an e_____________.
Once implanted, membranes develop to p____________ and n_____________ the embryo.
A___________ s________ cushions embryo with water.
Multiple zygotes
Fetal Development
After fertilization:
Implantation
uterine wall
Blastocyst
(Fertilized Egg)
P_______________ connects mother and embryo. *Connected to uterus wall
U_______________ c____________ connects embryo to placenta.
Human pregnancies are divided into t_________________.
: body plan and early development of m_________ organs; (B_________and H__________)
: fetus more active; more development of s_______________ and m______________ system
: all organs fully formed; L________ TO FULLY DEVELOP are L_________!
After about 38 weeks, fetus is ready to be born.
Placenta
Umbilical cord
Uterus
Amniotic sac
A fully formed fetus in about ____-______ weeks.
1st trimester
2nd trimester
3rd trimester
EOC Review:
1. A fertilized egg undergoes several stages before it is successfully implanted. The diagram below shows these stages as the fertilized egg travels through the female reproductive system.
In which of the following structures of the female human reproductive system is the blastocyst implanted during normal human development?
A. Ovary
B. Uterus
C. Vagina
D. Amniotic sac
2. The drinking of alcoholic beverages by a pregnant woman is harmful to the development of her fetus. This is most damaging EARLY in a pregnancy because during this time
A. The lungs of the fetus become functional.
B. Alcohol can easily enter the mouth of the fetus.
C. The fetus cannot excrete wastes.
D. Many of the essential organs of the fetus are forming.
