Reproductive System Overview

Tube that carries sperm from the epididymis to the urethra.

The male reproductive organ responsible for producing sperm and testosterone.

Cone-shaped structures within the testes where sperm production occurs.

Muscle that contracts to pull the testes closer to the body for warmth.

Failure of one or both testes to descend into the scrotum during fetal development.

A sac-like structure containing the testes and helps regulate temperature.

Weakened area in the abdominal muscles that allows organs to protrude.

Large cells that extend from the edge of the seminiferous tubule to its center, providing nourishment to germ cells and producing the hormone Inhibin.

Located outside the seminiferous tubules, these cells produce testosterone, the primary male sex hormone.

A network of tubules within the testes that collects sperm from the seminiferous tubules before it travels to the epididymis.

A coiled tube located on the posterior surface of each testis where sperm mature and gain the ability to fertilize an egg.

A tightly coiled tube that transports mature sperm from the epididymis to the prostate gland. It also forms part of the spermatic cord.

The final changes that sperm undergo after ejaculation which enable them to fertilize an egg.

A sac-like gland located near the ductus deferens that contributes to seminal fluid, aiding in sperm transport.

A chestnut-sized gland that surrounds the urethra, contributing to seminal fluid and playing a role in prostate health.

Small glands located near the base of the prostate gland that secrete mucus, lubricating the urethra during sexual arousal.

The process of forming sperm cells in the testes, starting at puberty.

These cells, located in the seminiferous tubules, produce testosterone.

The space within a seminiferous tubule, where sperm cell production takes place.

The 74-day process in which sperm cells develop within the seminiferous tubules.

Special cells that support and nourish developing sperm cells in the seminiferous tubules.

The process of cell division that creates two identical daughter cells. This occurs during the early stages of spermatogenesis.

The first stage of meiosis, where a cell with 46 chromosomes divides to create two cells with 23 chromatids each.

The second stage of meiosis, where each daughter cell divides again to create four haploid cells, each with 23 chromosomes.

Early sperm cells that mature into sperm cells.

The structure of a mature sperm cell, designed for fertilization.

Stimuli in the male reproductive system cause the penis to become erect due to blood filling venous sinuses (sinusoids) in the erectile tissue and compressing the veins, reducing blood flow out of the penis.

A technique used to address infertility caused by low sperm count or reduced sperm motility. Multiple ejaculations are collected, the sperm concentrated, and then inserted into the female reproductive tract.

They produce oocytes (female reproductive cells) and sex hormones.

The uterine tubes (or fallopian tubes) transport the oocyte from the ovary to the uterus.

They provide support and attachment for the internal female reproductive organs.

A hormone produced by the anterior pituitary gland, crucial for initiating and supporting the process of sperm production in the testes.

A male sex hormone produced in the interstitial cells within the testes. It is responsible for the development and maintenance of male reproductive organs, as well as secondary sexual characteristics.

A hormone produced by the cells within the seminiferous tubules that acts to regulate the production of follicle-stimulating hormone (FSH).

The process by which sperm cells, mucus, and secretions from the prostate and seminal vesicles gather in the urethra.

The forceful expulsion of the collected sperm and fluids from the urethra to the exterior.

The pleasurable sensations experienced during the male sex act, often associated with a peak intensity.

The period following ejaculation, characterized by a return to a relaxed state, a feeling of satisfaction, and an inability to immediately achieve another erection.

The condition of the penis becoming enlarged and rigid, making it suitable for penetration.

The inability to achieve erections or experience erectile dysfunction, often a source of distress and frustration.

The inability or significantly reduced ability to reproduce offspring.