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Gross II Exam 4 > Male Internal Reproductive Organs > Flashcards

Male Internal Reproductive Organs Flashcards

1
Q

What are the male internal reproductive organs?

A
  • testis
  • epididymis
  • ductus deferens
  • seminal vesicles
  • ejaculatory duct
  • prostate gland
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2
Q

What is the ductus deferens?

A

a thick-walled tube which carries sperm from the testis to the ejaculatory duct

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3
Q

What is the route of the ductus deferens?

A
  • it begins at the tail of the epididymis, travels within the spermatic cord and enters the pelvis through the deep inguinal ring
  • it travels along the lateral wall of the pelvis beneath the parietal peritoneum
  • it crosses over the ureter and descends posterior to the bladder, medial to the seminal vesicle
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4
Q

What forms the ejaculatory duct?

A
  • ductus deferens

- seminal vesicle

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5
Q

What is the ampulla of ductus deferens?

A

dilated terminal portion of the ductus deferens

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6
Q

What is the innervation of the ductus deferens?

A

superior and inferior hypogastric plexus

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7
Q

What is a vasectomy (deferentectomy)?

A
  • technique for male sterilization

- involves transection and ligation (tying) of the ductus deferens

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8
Q

What is epididymitis?

A
  • inflammation of the epididymis

- common complication of deferentectomy

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9
Q

What are the seminal vesicles?

A

two lobulated glandular structures which lie lateral to the ampullae off the ductus deferens against the fundus of the bladder

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10
Q

What do the seminal vesicles produce?

A
  • an alkaline component of semen

- important for neutralizing vaginal acidity

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11
Q

Do the seminal vesicles store sperm?

A

no

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12
Q

What is the innervation of the seminal vesicles?

A

inferior hypogastric plexus

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13
Q

What is the ejaculatory duct?

A

formed by the union of the ductus deferens with the duct of the seminal vesicle

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14
Q

Where do the two ejaculatory ducts open?

A

onto the seminal colliculus within the prostatic urethra

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15
Q

What is the blood supply to the ductus deferens, seminal vesicle, and ejaculatory duct?

A
  • artery of the ductus deferens (from superior vesical artery)
  • inferior vesical artery - most important
  • middle rectal artery
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16
Q

What is the prostate gland?

A

an organ which consists of smooth muscle, glandular tissue, and fibrous tissue

17
Q

What is the function of the prostate gland?

A

production of semen

18
Q

Where is the prostate gland located?

A
  • it is situated below the bladder and surrounds the urethra
  • it lies posterior to the pubic symphysis
  • lies immediately anterior to the rectal ampulla, and be palpated through it
  • has an apex (inferiorly) and a base (superiorly)
19
Q

What is the isthmus of prostate?

A
  • the part which lies anterior to the urethra
  • contains no glandular tissue
  • can’t be palpated; generally doesn’t develop cancer
20
Q

What is the prostatic urethra?

A

the portion of the urethra which is surrounded by the prostate gland

21
Q

What is the urethral crest?

A
  • a median crest located on the posterior wall of the prostatic urethra
  • lies above and below the seminal colliculus
22
Q

What is the seminal colliculus?

A
  • an ovoid elevation located on the urethral crest

- the two ejaculatory ducts and the prostatic utricle open onto it

23
Q

What is the prostatic utricle?

A
  • a tiny blind pouch located on the seminal colliculus

- it receives the ducts of the prostate gland

24
Q

What is the blood supply of the prostate gland?

A
  • inferior vesical artery - most important
  • middle rectal artery
  • internal pudendal artery
25
Q

What is the innervation of the prostate gland?

A

prostatic plexus from inferior hypogastric plexus

26
Q

What is benign prostatic hypertrophy?

A
  • the prostate tends to enlarge under the influence of hormones, particularly after the age of 40 years
  • this leads to difficulty in micturition through compression of the urethra
  • saw palmetto is an herbal treatment
27
Q

What is prostate cancer?

A
  • one of the most common cancers in men
  • metastasizes through both blood and lymph channels
  • connections between prostatic and sacral venous plexus allow metastasis to vertebral column and pelvis
  • bone involvement is common
  • PSA (Prostate Specific Antigen): test used for early detection
28
Q

What is the chiropractic note concerning the prostate?

A
  • chronic inflammation of the prostate or prostate cancer may cause referred pain to the sacrum
  • sacral misalignment or L1,L2 subluxations may be related to prostate or bladder problems

Gross II Exam 4 (22 decks)

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