Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
|
Root
|
The fixed portion of the penis that attaches it to the body wall
|
|
|
Body (shaft)
|
The tubular portion of the penis that contains masses of erectile tissue
|
|
|
Glans
|
The expanded distal portion of the penis that surrounds the external urethral orifice
|
|
|
Prepuce
|
A fold of skin that surrounds the tip of the penis
|
|
|
Erectile tissue
|
Consists of a maze of vascular channels incompletely separated by partitions of elastic connective tissue and smooth muscle; most of the body of the penis consists of three columns of this
|
|
|
Corpora cavernosa
|
Two cylinders that cover the anterior surface of the penis from the pubis to the glans
|
|
|
Corpus spongiosum
|
Relatively slender layer of erectile tissue that surrounds the urethra and extends all the way to the tip of the penis, where it forms the glans
|
|
|
Erection
|
Occurs when the smooth muscle in the arterial walls of the penis relaxes and vessles dialate in response to nitric oxide release from parasympathetic innervations of penile arteries, resulting in increased blood flow to the penis
|
|
|
Gonadotropin-releasing hormone (GnRH)
|
Hormone synthesized in the hypothalamus and carried to the anterior pituitary that causes the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH)
|
|
|
Follicle-stimulating hormone (FSH)
|
Hormone of the anterior pituitary whose stimulation promotes spermatogenesis and spermiogenesis in nurse cells
|
|
|
Luteinizing hormone (LH)
|
Hormone of the anterior pituitary that causes the secretion of testosterone and other androgens by the interstitial cells of the testes
|
|
|
Cryptochidism
|
Condition in which one or both of the testes have not descended by the time of birth
|
