Connect Chp. 26 Flashcards
Which of the following is a male secondary sex characteristic?
The prostate
The perineal raphe
The testis
A deep voice
The ductus deferens
A deep voice
In spermatogenesis, the haploid result of meiosis I is called a __________.
secondary spermatocyte
spermatogonium
spermatid
primary spermatocyte
sperm
secondary spermatocyte
Which gland produces most of the semen?
The areolar gland
The seminal vesicle
The prostate
The bulbourethral gland
The vestibular gland
The seminal vesicle
The __________ is the small, bilateral organ found lateral to the membranous urethra.
bulbourethral gland
ejaculatory duct
prostate
seminal vesicle
urethra
bulbourethral gland
What would one consequence be if a man suffers an injury to his cremaster?
Sterility
An undescended testis
A smooth scrotal sac
Erectile dysfunction
Sterility
Which statement about the parasympathetic nervous system is true?
Parasympathetic nerves stimulate contraction of smooth muscle in the walls of the epididymis and ductus deferens during emission.
Fibers arising in the sacral division cause dilation of penile blood vessels and engorgement of erectile tissue.
Parasympathetic nerves constrict the penile arteries when the penis is directly stimulated.
Parasympathetic fibers arise from T12 to L2 and pass through the hypogastric and pelvic nerve plexuses.
Parasympathetic nerves initiate erection in response to visual stimuli and sexual thoughts.
Fibers arising in the sacral division cause dilation of penile blood vessels and engorgement of erectile tissue.
The acrosome contains enzymes used to __________.
penetrate the vagina
dissolve the mucosa of the uterus
dissolve the stickiness of the semen
penetrate barriers surrounding the ovum
dissolve the mucosa of the vagina
penetrate barriers surrounding the ovum
Which structure caps the head of a mature sperm and enables the sperm to penetrate an egg?
Axoneme
Nucleus
Acrosome
Mitochondria
Flagellum
Acrosome
In the process of spermiogenesis, __________ become __________.
spermatogonia; spermatocytes
spermatocytes; spermatozoa
spermatozoa; spermatids
spermatocytes; spermatids
spermatids; spermatozoa
spermatids; spermatozoa
What is the function of the cremaster muscle?
In most mammals, it serves to move the tail but has no purpose in humans.
It becomes engorged with blood during an erection.
It contributes to voluntary control of urination.
It contracts to draw the testes close to the body for warmth.
It contracts during ejaculation to assist in the movement of sperm through the spermatic cord.
It contracts to draw the testes close to the body for warmth.
The deep region of the penis, surrounding the urethra, that engorges with blood during an erection is known as the ___________.
ductus (vas) deferens
scrotum
epididymis
corpus spongiosum
corpus cavernosum
corpus spongiosum
Myoepithelial cells perform which of the following functions?
They cause contractions in the ductus deferens and epididymis so that sperm are pushed toward the penis.
They cause milk ejection into lactiferous ducts.
They cause ejection of glandular secretions from seminal vesicles.
They stimulate uterine contractions during female orgasm.
They sweep the egg into the uterine tube when it is ovulated.
They cause milk ejection into lactiferous ducts.
Given that a secondary oocyte only survives about 24 hours if it is not fertilized, where does fertilization normally occur?
Uterine tube
Vagina
Uterus
Ovary
Uterine tube
The __________ sometimes expels copious fluid similar to prostatic fluid, which constitutes the female ejaculate.
prostate
paraurethral glands
vaginal epithelium
bulbourethral glands
vestibular bulb
paraurethral glands
When does oogenesis begin?
During embryonic development
During pubarche
During thelarche
At birth
During menarche
During embryonic development
