Title: Lecture Objectives 2
1Lecture Objectives 2
- Hormonal regulation in males/females
- Name the glands and their secretions
- Describe the path sperm follow
- Describe the ovarian and uterine cycle
- Know the structure and function of the female
reproductive system
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3Hormonal Control
- Testosterone, Cells of Leydig
- (lobes of testes)
- Stimulates spermatogenesis
- Secondary sex characteristics
4Reproductive Hormones
- Hypothalamus
- Gonadotropin releasing hormone
- Anterior Pituitary
- Gonadotropic hormones
- Follicle Stimulating Leutinizing
- hormone (FSH) hormone (LH)
5Functions of FSH LH
- FSH
- Production of sperm Produces Estrogen
- in males
and some Progesterone
- in females
- LH
- Controls production of Secretes
Progesterone - testosterone in males and some
estrogen in females
6Inhibin
- Sperm Count High
- Inhibin release increases
- Inhibits
- Follicle Stimulating Leutinizing
- hormone (FSH) hormone (LH)
7- Sperm Count Low
- Inhibin release decreases
- Follicle Stimulating Leutinizing
- hormone (FSH) hormone (LH)
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9Route
- Produced in the seminiferous tubules (testes)
- Epididymis
- Vas Deferens (vasectomy)
- Urethra
- Head of the sperm (acrosome) is important for?
Midpiece? Tail?
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14Eggs vs Sperm
- Birth - 2 million (Meiosis I)
- Puberty 200,000 ovary
- 450 opportunities to become pregnant
- The ability of a woman to become pregnant must be
terminated at some point (menopause) Why? Recent
older moms?
15Miracle of Life Nova The Third Trimester
16Miracle of Life
- Conception and Development of human life
17The encounter
18The female counterpart
19The male counterpart
20Finding each other
21The meeting - competition
22The penetration
23The First Hour
24Coming together
25The union - a new life begins
26Thirty hours - first portrait
27Two days - a mass of cells
28Making it to the womb
29Four days - starting to take shape
30Four days - looking for a home
31Eight days - a closer look
32Eight days - finding the first home
3311 days - making connection
343 weeks - a primitive mass
354 weeks - forming the basic design
364 weeks - a sheltered world
374 weeks - forming the life support
384 weeks - tiny prehistoric creature
395 weeks - visible to the world
40Five weeks - a first closeup
416 weeks - forming the backbone
426 weeks - getting cute
436 weeks - linking two circulations
448 weeks - every organ in place
458 weeks - forming the eyes
4616 weeks - a human face
4716 weeks - taking form
4818 weeks - running out of space
4939 weeks - time to push
50Push harder
51We are going to make it
52Hello!
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55Female Reproductive System
- Ovaries Produce?
- Oviducts Location of ?
- Uterus Location of developing fetus
- Cervix (Pap Test) Opening to the uterus
- Vagina Organ of copulation and birth canal
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57Fertilization and implantation
58The Menstrual Cycle
- Days 1-14 Proliferation
- Days 1-4 sloughing
- Days 6-13 endometrium is rebuilding
- Cervix secretes an thin alkaline mucous (why?)
59- Day 14 Ovulation
- Hormone LH surges
- Enlarged fluid filled Graafian follicle (pg.
294-295 of the text) - Light increase in temperature
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62Female Reproductive System
Figure 16.4A
63Ovarian Cycle
Figure 16.6