Week 7: Pelvic Viscera

Question 1

Answer 1

Structure: Rectum

Innervation: Rectal plexus, parasympathetic fibers from pelvic splanchnic n. S2-S4

increase peristalsis

Sympathetic fibers from Sacral splachnic n. L1, L2

decrease peristalsis

Blood supply: superior rectal artery & vein via the inf. mesenteric artery & vein

Question 2

Answer 2

Internal anal sphincter

Question 3

Answer 3

Structure: Ureter

Innervation: Pelvic splanchnic n.

Renal calculi (kidney stones) may get impacted where ureters pierce bladder wall. Pain afferents accompany sympathetic fibers. Passage of such stones produce “loin-to-groin” pain

Question 4

Answer 4

Structure: Urinary Bladder

Innervation: vesical plexus

Question 5

Answer 5

Urethra

(female)

Question 6

Answer 6

Urethra, spongy part

(male)

Question 7

Answer 7

Prostate

Question 8

Answer 8

Testis

sperm production and hormone synthesis

Question 9

Answer 9

Epididymis

storates of sperm to pass to the ductus deferens

Question 10

Answer 10

Ductus Deferens

primary component of spermatic cord, conducts spern in from the epididymis to the ejaculatory duct

Question 11

Answer 11

Bulbourethral glands

pea-sized, these ducts pass to the spongy urethra and contains mucus-like secretion to mix w semen

Question 12

Answer 12

Vagina

musculomembranous passage that connects the uterine cavity to the exterior.

Allows entrance/insertion of the penis, ejaculate, tampons, examining digits, exit of fetus, or menstrual fluid

Question 13

Answer 13

Uterus

pear shaped, and distensible for examination of landmarks such as the ovaries

early embryo implants in the uterus where it matures (embryo, fetus)

Question 14

Answer 14

Uterine tubes

conduit and site of fertilization for oocytes to travel into the peritoneal cavity in the uterus

Question 15

Answer 15

Ovary

almond shaped female gonads, oocytes develop, also produces reproductive hormones