G10 The Reproductive System: Parts and Functions(The Male Reproductive System) Flashcards
Functions of the Male Reproductive System
Sperm Cell Production
Production of Hotmones
Deposition of Sperm into the Female
The male reproductive system is specialized for the production of sperm cells and their deposition into the female reproductive tract. It has a series of structures that serve to perform these functions efficiently.
The production, development, and maturation of sperm cells happens within the male reproductive system
Sperm Cell Production
type of gametogenesis that occurs in male organisms
spermatogenesis
primary sex hormone of male animals
testosterone
The primary sex hormone of male animals is known as testosterone, and it is produced by the testes.
is responsible for the changes that occur during puberty, as well as the signaling necessary in order to trigger spermatogenesis.
Testosterone
Another function of the male reproductive system of humans is to safely and properly deposit the sperm cells into the female.
The male reproductive system has a number of secretions to ensure that the sperm cells are properly nourished and protected for it to be safely deposited into the female.
An organ known as the _ does the deposition. Any organ that is used for depositing sperm into a female is known as an intromittent organ. This is the _ in humans
penis
An organ known as the penis does the deposition. Any organ that is used for depositing sperm into a female is known as an _ organ. This is the penis in humans
intromittent /organ/
Components of the Male Reproductive System
testes scrotum prostate gland urethra penis sperm ducts accessory glands
The function of _ is to produce male sex cells called sperm cells.
testes
They are also responsible for producing male sex hormones such as testosterone.
testes
The sperm cells develop inside the testes in a series of tubes known as the _ _.
seminiferous tubules.
are microscopic structures that are coiled inside the testes, and this is where sperm is produced and where they mature
seminiferous tubules
release a variety of hormones that aid in the development of sperm
Sertoli cells
primarily release testosterone
Leydig cells
are for the contraction of the seminiferous tubules for moving cells and substances. There are also blood vessels in the testes, for the delivery of oxygen and nutrients.
myoid cells
a bag of skin that contains the testes
scrotum
a reproductive structure that is located under the penis
Scrotum
The scrotum is about 2–3°C lower than the normal body temperature, and this is the temperature that is favorable for sperm cell production and development.
Within the scrotum are muscles known as the
dartos and cremaster muscles
When environmental temperature is too low, the _ contracts, which decreases the surface area of the scrotum in contact with the outside environment. This prevents further heat loss.
dartos
brings the testes closer to the body to conserve heat.
cremaster
is the external part of the male reproductive system. It is a tube-shaped organ that contains the urethra, which allows it to pass the urine and semen out of the body
penis
also known as the head of the penis, is a sensitive structure at the end of the organ. It contains the opening for the urethra
glans penis
The glans penis is covered by skin known as the _, which protects the glans.
prepuce
Within the penis is a structure known as the _ _. This structure is known as the erectile tissue in men, which leads to the penis becoming erect when the _ _ is filled with blood. This is in preparation for sexual intercourse.
corpora cavernosa
are composed of the vas deferens and seminal vesicles.
Sperm ducts
a tube through which sperm cells pass before entering the urethra
vas deferens
secrete fluid that makes the sperm cells more mobile, increasing the chances of fertilization
Seminal vesicles
a structure associated with the vas deferens. Its primary function is to hold and support structures like blood vessels and the vas deferens itself
spermatic cord
These glands secrete substances that aid in the nourishment of sperm and contribute to higher chances of fertilization.
accessory glands
accessory glands
seminal vesicles
bulboyrethral gland
prostate gland
has secretions that serve to neutralize the vagina’s acidity.
bulbourethral gland
secretes the prostate fluid
prostate gland
neutralizes the acidic conditions of the vagina
prostate fluid
mixture of sperm and prostate fluid is called
semen
The muscles of the prostate gland help propel semen through the urethra and into the female reproductive organ during ejaculation
a tube beside the testes
where mature sperms are stored
epididymis
The sperm cells are stored until they are released from the body through a process known as
ejaculation
forcefully expels sperm and semen from the male body into the female’s vagina during sexual intercourse
Ejaculation
proteins in the epididymis serve to support the reproductive tract of males, protect against bacterial infections, and regulate recovery after a bacterial infection
defensins
During ejaculation, sperm moves from the epididymis, into a tube called the _ _, into another tube known as the urethra, and out of the bod
vas deferens
a method of birth control that deals with cutting or blocking the tube of the vas deferens. This prevents sperm cells from being transported out of the body and will lead to future sexual intercourse by the affected male to carry no risk of fertilization.
vasectomy
is connected to both the urinary bladder and sperm duct. This is the reason why the urethra serves as an exit point for both urinary and reproductive products.
Urethra
The male reproductive system is specialized for the production of sperm cells and their deposition into the female reproductive tract.
The production, development, and maturation of sperm cells happens within the male reproductive system.
The type of gametogenesis that occurs in male organisms is known as spermatogenesis.
The male reproductive system is composed of the testes, scrotum, urethra, penis, sperm ducts. and accessory glands
The gonads of the male reproductive system are the testes. Each male reproductive system has two testes.