Podcast
Questions and Answers
What male reproductive structure produces sperm?
What male reproductive structure produces sperm?
- Testes (correct)
- Prostate gland
- Seminal gland
- Bulbo-urethral gland
Which structure houses the testes?
Which structure houses the testes?
- Vas deferens
- Epididymis
- Urethra
- Scrotum (correct)
What is the name of the male copulatory organ?
What is the name of the male copulatory organ?
- Scrotum
- Penis (correct)
- Testes
- Epididymis
Which of the following is a component of the penis?
Which of the following is a component of the penis?
What is the name of the cuff of skin that forms around the distal end of the penis?
What is the name of the cuff of skin that forms around the distal end of the penis?
What connective tissue encloses the arteries, veins, and nerve fibers of the testes?
What connective tissue encloses the arteries, veins, and nerve fibers of the testes?
Which of the following descriptions best matches the role of the scrotum?
Which of the following descriptions best matches the role of the scrotum?
What is the temperature of the scrotum, compared to core body temperature?
What is the temperature of the scrotum, compared to core body temperature?
True or False: The testes have two lobes.
True or False: The testes have two lobes.
In what structure are sperm stored until ejaculation?
In what structure are sperm stored until ejaculation?
Where is sperm created?
Where is sperm created?
After sperm leave the straight tubule, what structure do they enter next?
After sperm leave the straight tubule, what structure do they enter next?
What two muscles contribute to temperature regulation of the testes?
What two muscles contribute to temperature regulation of the testes?
True or False: The male perineum is diamond-shaped.
True or False: The male perineum is diamond-shaped.
What is the name for the three cylindrical bodies of erectile tissue?
What is the name for the three cylindrical bodies of erectile tissue?
What is the name for the surgical removal of foreskin?
What is the name for the surgical removal of foreskin?
What is the name for the region that contains the root of the penis and the anus?
What is the name for the region that contains the root of the penis and the anus?
What is the definition of external genitalia?
What is the definition of external genitalia?
What cells are the site of sperm production?
What cells are the site of sperm production?
Which of the following is NOT part of the penis?
Which of the following is NOT part of the penis?
Flashcards
Testes
Testes
Male gonads responsible for producing sperm.
Seminiferous Tubules
Seminiferous Tubules
The location where sperm is created.
Spermatic Cord
Spermatic Cord
Encloses arteries, veins, nerve fibers, and lymphatics to supply blood to the testes.
Scrotum's Response to Temperature
Scrotum's Response to Temperature
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Penis
Penis
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Penis Components
Penis Components
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Prepuce (Foreskin)
Prepuce (Foreskin)
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Cylindrical Bodies of Erectile Tissue
Cylindrical Bodies of Erectile Tissue
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Male Perineum
Male Perineum
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Study Notes
- This is lecture 2 of chapter 27 and covers the anatomy of the male reproductive system
Testes
- Gonads that produce sperm
- Housed within the scrotum
Testes Anatomy
- Has two lobes
- Sperm is created in the seminiferous tubules
- Seminiferous tubules connect to form a straight tubule
- Sperm proceed to the rete testis, then efferent ductules, then the epididymis
- Sperm is stored in the tail of the epididymis until ejaculation
- Supplied by the autonomic nervous system with a rich blood supply
- Arteries, veins, nerve fibers, and lymphatics are enclosed by a connective tissue sheath known as the spermatic cord
Scrotum
- Contains paired testes
- Temperature is 3°C lower than core body temperature
- Lower temperature is necessary for sperm production
- Temperature affects the scrotum
- When cold, the testes are pulled closer to warm body wall via the cremaster muscle, and skin wrinkles to decrease surface area by the dartos muscle
Penis
- Male copulatory organ that delivers sperm into the female reproductive tract
- Scrotum and penis are referred to as external genitalia of the male
Penis Anatomy
- Consists, of root, body (shaft), and glans penis
- The skin covering it is loose and forms a cuff distally, called prepuce, or foreskin
- Circumcision is the surgical removal of the foreskin
Penile Anatomy
- Contains the spongy urethra
- Three cylindrical bodies of erectile tissue: corpus spongiosum and corpus cavernosum
- Filled with smooth muscle and vascular spaces
Male Perineum
- The scrotum attaches here
- Contains the root of the penis and the anus
- Diamond shaped, bordered by the pubic symphysis, coccyx, and ischial tuberosities
- The floor is comprised of muscles
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