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Questions and Answers
What is the term for an individual that has both male and female reproductive tissues?
What is the function of the cilia on the opening lining of the oviduct?
What is the term for the inner lining of the uterus?
Where do the oviducts or fallopian tubes extend from?
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What is the function of the cervix?
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What is the term for the collective term for the external female genitalia?
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What is the main function of the epididymis?
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What is the purpose of the scrotum?
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What is the name of the duct that connects the epididymis to the urinary bladder?
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What is the main component of seminal fluid produced by the seminal vesicle?
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What is the primary function of the bulbourethral glands?
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What is the outer layer of the glans penis composed of?
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Study Notes
Types of Sexual Reproduction
- Bisexual Reproduction: Involves the fusion of gametes from two genetically distinct parents.
- Hermaphrodites: Organisms possessing both male and female reproductive organs.
- Self-Fertilization: Rare in animals; often requires a male's sperm for fertilization in hermaphroditic species like worms.
Reproductive Anatomy of Human Female
- Ovaries: Pair of female gonads, containing numerous follicles composed of oocytes and supporting cells.
- Oviducts (Fallopian Tubes): Extend from the uterus, facilitating egg capture through ciliated openings during ovulation.
- Uterus (Womb): A muscular organ capable of expanding to hold a fetus weighing up to 4 kg.
- Endometrium: Inner uterine lining, richly vascularized to support pregnancy.
- Cervix: Connects the uterus to the vagina, allowing menstrual flow and sperm entry.
- Vagina: Elastic structure that serves as the copulatory organ and birth canal, opening at the vulva.
- Vulva: External reproductive structures of females, encompassing various genital parts.
Reproductive Anatomy of Human Male
- Testes: Male gonads producing sperm within coiled seminiferous tubules.
- Scrotum: External pouch that maintains testes at a cooler temperature for optimal sperm production.
- Epididymis: Coiled duct where sperm mature and travel over three weeks.
- Vas Deferens: Muscular tube that transports sperm from the epididymis to the ejaculatory duct.
- Urethra: Dual-purpose tube for excretion and reproduction, running through the penis to the external environment.
Accessory Glands and Penis Structure
- Seminal Vesicle: Produces about 60% of semen volume; secretion is thick, yellow, alkaline, containing mucus and fructose.
- Prostate Gland: Delivers fluids directly into the urethra via ducts.
- Bulbourethral Glands: Secretions neutralize acidic urine residues in the urethra.
- Penis: Comprised of erectile tissue, housing the urethra; glans has a thinner skin layer than the shaft.
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Description
Test your knowledge of reproduction biology, including types of sexual reproduction, hermaphrodites, and the reproductive anatomy of the human female.
