IB Biology Topic D3.1.4 Anatomy of the Human Male and Female Reproductive Systems Revision Notes (SL/HL)

IB Biology Topic D3.1.4 Anatomy of the Human Male and Female Reproductive Systems Revision Notes (SL/HL) | RevisionDojo

Written by official IB examiners

The Human Reproductive System Produces Gametes and Supports New Life

The reproductive system makes gametes, the sex cells that carry genetic material to the next generation.
It also enables fertilisation and the development of offspring.

Tip

The male and female systems have distinct structures.
They work together toward the same goal: producing and joining gametes so the species continues.

The Male System Produces, Stores, and Delivers Sperm

The male reproductive system produces, stores, and delivers sperm to the female system.
Its key structures are the testes, epididymis, sperm duct, accessory glands, and penis.

Key Structures and Functions

Testes
1. Produce sperm and the hormone testosterone.
2. Held in the scrotum, which keeps them slightly below core body temperature for sperm production.
Epididymis
1. A coiled tube on the back of each testis that stores sperm until ejaculation.
Sperm duct (vas deferens)
1. Carries sperm from the epididymis during ejaculation.
Accessory glands (seminal vesicles and prostate)
1. Secrete fluid with alkali, protein, and fructose that nourishes sperm and forms semen.

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IB Biology Topic D3.1.4: Anatomy of the Human Male and Female Reproductive Systems Notes

The Human Reproductive System Produces Gametes and Supports New Life

The Male System Produces, Stores, and Delivers Sperm

Key Structures and Functions

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

The Human Reproductive System Produces Gametes and Supports New Life

The Male System Produces, Stores, and Delivers Sperm

Key Structures and Functions

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics

IB Biology Topic D3.1.4: Anatomy of the Human Male and Female Reproductive Systems Notes

The Human Reproductive System Produces Gametes and Supports New Life

The Male System Produces, Stores, and Delivers Sperm

Key Structures and Functions

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

The Human Reproductive System Produces Gametes and Supports New Life

The Male System Produces, Stores, and Delivers Sperm

Key Structures and Functions

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics