Human Reproductive System - Unit III-Lesson 1

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Questions and Answers

What is the primary function of the testes?

To transport mature sperm

To produce eggs

To store sperm

To produce sperm and testosterone (correct)

The epididymis is where sperm cells are produced.

False (B)

What structure in the female reproductive system contains the nucleus of the egg cell?

ovum

The _______ is the primary organ for copulation in males.

penis Signup and view all the answers

Match the parts of the male reproductive system with their functions:

Testes = Produces sperm and testosterone Vas deferens = Transports mature sperm Seminal vesicle = Provides energy to sperm Prostate gland = Nourishes sperm Signup and view all the answers

Which fluid do the seminal vesicles produce?

Sugar-rich fluid (D) Signup and view all the answers

Sperm and egg cells both contain 46 chromosomes.

False (B) Signup and view all the answers

What is the main function of the scrotum?

to protect and regulate the temperature of the testes Signup and view all the answers

What characterizes the growth spurt that occurs during puberty?

A sudden increase in height lasting for two to three years (A) Signup and view all the answers

Which of the following describes a change that boys experience during puberty?

Broader chest and shoulders (C) Signup and view all the answers

What physical change is associated with girls during puberty?

Wider hips and smaller waist after menstruation starts (C) Signup and view all the answers

What condition may arise during puberty related to skin changes?

Acne (B) Signup and view all the answers

What happens to vision during puberty?

Vision changes frequently due to growth in axial diameter of the eye (D) Signup and view all the answers

What is a potential effect of rapid growth during puberty?

Apparent scoliosis due to spinal curvature (D) Signup and view all the answers

What is the average length of a menstrual cycle in women?

28 days (A) Signup and view all the answers

How do body fat changes differ between boys and girls during puberty?

Girls develop a greater proportion of body fat compared to boys (D) Signup and view all the answers

What is a typical vocal change boys experience during puberty?

Voice becomes deeper due to growth of the larynx (D) Signup and view all the answers

During which phase of the menstrual cycle does menstruation occur?

Menstrual phase (C) Signup and view all the answers

What hormone primarily stimulates the growth of ovarian follicles?

Follicle-stimulating hormone (FSH) (A) Signup and view all the answers

What occurs during ovulation?

A mature egg is released (A) Signup and view all the answers

How long after ovulation does fertilization need to occur for the egg to remain viable?

24 hours (C) Signup and view all the answers

What structure forms from the follicle after ovulation?

Corpus luteum (A) Signup and view all the answers

What happens to the uterine lining if the egg is not fertilized?

It breaks down and is expelled (C) Signup and view all the answers

Which phase of the menstrual cycle is characterized by a high chance of pregnancy?

Ovulation phase (B) Signup and view all the answers

Study Notes

Unit III-Lesson 1: Structure and Functions of the Human Reproductive System

This is a unit covering the structure and function of the human reproductive system.
The week covered is October 6-10.
Objectives: To describe the parts of the male and female human reproductive systems and their functions.

Male Reproductive System

Parts:
- Testicles: oval-shaped organs located behind the penis; produce sperm and testosterone.
- Penis: organ used for copulation.
- Scrotum: loose pouch of skin behind the penis, holds testicles.
- Epididymis: long, coiled tube where sperm are stored during maturation.
- Vas deferens: transports mature sperm to the urethra.
- Seminal vesicle: sac-like pouches near the bladder, makes sugar-rich fluid to nourish sperm.
- Prostate gland: walnut-sized structure in front of the rectum, nourishes sperm.

Female Reproductive System

Parts:
- Ovaries: produce estrogen and progesterone, site of ova (egg) development and ovulation.
- Fallopian tubes (oviducts): carry ova to the uterus, often site of fertilization.
- Fimbriae: sweep the ovum into the Fallopian tube.
- Uterus (womb): pear-shaped organ where the embryo and fetus develop.
- Cervix: separates the vagina from the uterus and dilates during birth.
- Vagina: extends from the cervix to the external environment, functions as the birth canal.
External Anatomy:
- Pubic area (mons pubis)
- Outer lips (labia majora)
- Inner lips (labia minora)
- Clitoris
- Bladder opening (urethra)
- Vaginal opening
- Bartholin's gland
- Anus

Sperm and Egg Cell Structure

Each cell contains 23 chromosomes that carry traits from parents to offspring.
Sperm cells have a head and tail, while egg cells are round and contain the nucleus.

Activities

Complete Activity A on page 94 of your Science book.

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Description

This quiz covers the structure and functions of the human reproductive system. It includes detailed information about the male and female reproductive parts and their respective functions, relevant for the week of October 6-10. Test your knowledge on this essential biology topic.