Flashcards in Sexual Reproduction Deck (38)
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1
Sexual reproduction
Production and fusion of gametes to form a zygote
2
Testis
Produces sperm and testosterone
3
Epididymis
Matured and stores sperm
4
Sperm duct
Carries speed from epididymis to urethra
5
Urethra
Allows passage of sperm and urine
6
Penis
Place sperm inside female body
7
Scrotum
Holds testes at lower temperature
8
Seminal vesicles
Secretes alkaline fluid - protects sperm in vagina
9
Prostate gland
Fluid nourishes and activates sperm
10
Coopers gland
Secretes mucus - neutralises urine in the urethra
11
Semen
Sperm + seminal fluid
12
FSH males
Follicle stimulating hormone
- produced by pituitary gland
- stimulates sperm
- meiosis occurs in testes
13
Testosterone
Develop secondary sex characteristics.
Secretes in testes
14
LH males
Luteinising Hormone
- pituitary gland
- testosterone to develop
15
Male secondary sex characteristics
Facial and pubic hair
Enlargement of larynx
Growth spurt
16
Ovary
Produces eggs, oestrogen and progesterone
17
Fallopian tube
Site of fertilisation.
18
Uterus
Site of implantation,
Hold embryo ,
Forms placenta
19
Vagina
Allows entry of sperm + exit of baby
20
Oestrogen
Produced in ovary , causes endometrium to develop
21
Progesterone
Produced by ovary, keeps endometrium built up, stops uterus from contracting
22
Female secondary sex characteristic
Enlargement of breasts
Widening of pelvis
Pubic and underarm hair
23
Menstrual cycle
Day 1-5
Uterus lining breaks down
Menstruation
New egg produced by meiosis
Surrounded by Graafian follicle
24
Menstrual cycle
Day 6-14
Oestrogen produced by GF
Uterus lining builds up again
25
Day 14 - menstrual cycle
Ovulation occurs
GF bursts and releases egg
26
Menstrual cycle
Day 14-28
GF develops into Corpus Luteum
Endometrium thickens
27
Menstrual disorder
Fibroids
Benign tumour in uterus wall , consists of muscle and connective tissues
28
Cause of fibroids
Symptoms
Treatment
Abnormal response to pill
Heavy bleeding , pain, infertility
Surgery
29
Labour stages
1. Dilation stage
2. Expulsion stage
3. Placental stage
30
Lactation
Secretion of milk from mammary glands
31
Benefits of breastfeeding
- essential antibodies (fight infection )
- balance of nutrients
- little fat - easier to digest
32
Birth control
Methods taken to limit number of children born
33
Abortion
Termination of pregnancy
34
Contraception
Deliberate prevention of fertilisation
35
Male contraception
Condoms
Spermicide
Sperm ducts cut and tied
36
Female contraception
No sex on fertile period
Diaphragms
The pill
Fallopian tunes cut and tied
37
In vitro fertilisation
Fertilisation outside the body
38
