11 Human Health and physiology 2 3/15 Flashcards
11.4.1 Annotate a light electron micrograph of testis tissue to show the location and function of interstitial cells (Leydig cells), germinal epithelium cells, developing spermatozoa and sertoli cells.
interstitial cells (Leydig cells)
germinal epithelium cells
developing spermatozoa
sertoli cells
11.4.2 Outline the processes involved in spermatogenesis within the testis, including mitosis, cell growth, the two divisions of meiosis and cell differentiation.
.
11.4.3 State the role of LH, testosterone and FSH in spermatogenesis.
.
11.4.4 Annotate a diagram of the ovary to show the location and function of germinal epithelium, primary follicles, mature follicle and secondary oocyte.
germinal epithelium
primary follicles
mature follicle
secondary oocyte
11.4.5 Outline the processes involved in oogenesis within the ovary, including mitosis, cell growth, the two divisions of meiosis, the unequal division of cytoplasm and the degeneration of polar body.
.
11.4.6 Draw and label a diagram of a mature sperm and egg.
..
11.4.7 Outline the role of the epididymis, seminal vesicle and prostate gland in the production of semen.
..
11.4.8 Compare the processes of spermatogenesis and oogenesis, including the number of gametes and the timing of the formation and release of gametes.
Spermatogenesis: large # of sperm cells; four gametes per germ cell; produced continuously after puberty and w/o stopping; gametes can be released anytime
Oogenesis: limited # of ova, one gamete per germ cell; formed since fetus, complete formation once a month after puberty; stops at menopause; released through a monthly cylce
11.4.9 Describe the process of fertilization, including the acrosomal reaction, penetration of the egg membrane by a sperm and the cortical reaction.
i
11.4.10 Outline the role of HCG in early pregnancy.
j
11.4.11 Outline early embryo development up to the implantation of the blastocyst.
h
11.4.12 Explain how the structure and functions of the placenta, inclusing the hormonal role in secreation of estrogen and progesterone, maintain pregnancy.
y
11.4.13 State that the fetus is supported and protected by the _____ ____ and_____ _____.
the fetus is supported and protected by the amniotic sac and amniotic fluid
11.4.14 State that materials are exchanged between the _____ and ______ blood in the placenta.
materials are exchanged between the maternal and fetal blood in the placenta.
11.4.15 Outline the process of birth and its hormonal control, including the changes in progesterone and oxytocin levels and positive feedback.
y
