rep. pg 5&6

tubuli recti, rete testis, ductuli efferentes

what are the intratestucular genital ducts

tubulu rectus, straight seminiferous tubules, straight tubules

what is the other term for tubuli recti?

tubuli recti

Short, narrow, straight continuation of seminiferous tubules arising from each pyramidal lobule, which converge on the rete testis

simple epithelium

what is the lining of tubuli recti?

tubuli recti

connects the seminiferous tubules to the rete testis

tubuli recti

Located in the mediastinum testis

rete testis

A plexus of epithelium-lined spaces in the mediastinum testis

simple squamous, cuboidal epithelium

what is the lining of rete testis?

efferent ducts, efferent ductules, vasa efferentia

what is the other term for ductuli efferentes?

ductuli efferentes

12 or more ductuli efferentes arise from the rete testis and traverse the tunica albuginea to emerge on the postero-superior portion of the testis

ductuli efferentes

Become highly tortuous before joining the ductus epididymis

alternating ciliated columnar, non ciliated cuboidal cells

what is the lining of ductuli efferentes?

cilliated cells

propel spermatozoa toward the epididymis

noncilliated cells

absorb excess fluid

ductus epididymis, ductus deferens, ejaculatory duct, urethra

what are the extratesticular genital ducts?

ductus epididymis

Highly convoluted; 4-5 m long

ductus epididymis

Runs along the posterior surface of the testis from its upper to its lower pole with stereocilia

pseudostratified columnar epithelium

the ducts of the ductus epididymis is lined by what?

ductus epididymis

Site of accumulation, maturation, and storage of spermatozoa

epididymis

The ductus epididymis constitutes most of the epididymis

epididymis

About 7.5cm long; C-shaped structure located on the superior and posterior surfaces of the testis

ductus deferens

Continuation of the ductus epididymis as its distal end straightens and ascends within the spermatic cord

ductus deferens

Travels to the pelvic cavity where it joins the ejaculatory duct

ductus deferens

Together with the spermatic artery, nerves, and veins, it forms the spermatic cord

vas deferens

what is the other term for ductus deferens?

spermatid cord

Transports mature sperm from the epididymis to the ejaculatory duct, where it joins accessory gland secretions to contribute to semen formation

ejaculatory duct

Formed by the union of the ductus deferens and the duct of the seminal vesicle

ejaculatory duct

Penetrates the prostate gland

ejaculatory duct

Opens into the posterior wall of the prostatic urethra

urethra

Unpaired, unlike the first three ducts

urethra

Last segment of the duct system of both the reproductive and urinary systems

accessory glands

The combined secretions of these accessory glands account for most of the volume of male ejaculate (semen)

2 to 5 ml

average of semen per ejaculation?

20 to 250 million

per ml how many spermatozoa does speem have?

spermatozoa

constitute only about 10% of the ejaculate volume

60%

how many percent is seminal vesicles?

30%

how many percent is prostate glands?

bulbourethral glands

contribute an insignificant amount

seminal vesicle

Pair of diverging saccular structures about 5 cm in length

seminal vesicle

Located behind the neck of the urinary bladder above the prostate gland

seminal vesicle

Coiled or convoluted tubes

seminal vesicle

Produce secretions that contribute to the greater volume of the ejaculate

mucosa

is highly folded, forming a maze-like lumen, and is lined by nonciliated pseudostratified columnar or cuboidal epithelium

seminal vesicle

Produces fluid the serves as the transport medium for spermatozoa

fructose

Energy source for spermatozoa

prostaglandins

Stimulate sperm motility and penetration capacity

fibrinogen

Allows coagulation of semen after ejaculation

prostate gland

Chestnut-shaped: largest of the accessory glands weighing 20 grams

prostate gland

Its secretion together with seminal vesicles contribute to the ejaculate

prostate gland

Encircles the neck of the urinary bladder and the urethra

prostate gland

Compound tubuloacinar glands surrounded with fibromuscular tissue

prostate gland

Spherical bodies called "corpora amylacea" are often found in the lumen of the glands

corpora amylacea

Spherical bodies called "????" are often found in the lumen of the glands

prostate gland

Produces an alkaline fluid containing glycoproteins, enzymes, fibrinolysin, prostaglandins, and antibacterial substances, ACP (acid phosphatase), zinc, and citric acid

prostatic fluid

is slightly acidic, but other components of semen make semen slightly alkaline overall

prostate specific antigen

a protease that liquefies coagulated semen for gradual sperm release after ejaculation

stroma

Dense irregular connective tissue richly supplied with smooth muscle fibers (fibromuscular organ)

stroma

Includes a capsule and septa that incompletely divide the gland into 50 poorly defined lobules

stroma

Blood vessels and nerves run within the septa

parenchyma

The ducts of the three groups of glands all open into the prostatic urethra

parenchyma

Consist of three groups of compound tubuloalveolar glands that are arranged concentrically around the urethra

main prostatic glands

Comprise the bulk; occupy the peripheral 2/3 of the prostate gland

main prostatic glands

Secretion is, collected by about 20 ducts that open, independently of each other, into the prostatic sinuses

submucosal glands

Occupy the inner 1/3

submucosal glands

Ducts also open into the prostatic sinuses

mucosal glands

Small group of glands surrounding the urethra

mucosal glands

Ducts open directly on the luminal surface of the prostatic urethra

bulbourethral gland

Paired, pea-sized glands

bulbourethral gland

yellowish, embedded in the sphincter urethrae muscle of the urogenital diaphragm, located behind and lateral to the membranous urethra

bulbourethral gland

Embedded in the muscles of the urogenital diaphragm below the prostate

bulbourethral gland

Opens into the penile urethra

bulbourethral gland

Main excretory duct is 2.5-3.0 cm long and lined by pseudostratified columnar epithelium

bulbourethral gland

Secretion is a clear, mucus-like, viscous fluid, which lubricates the urethra for easier passage of spermatozoa