BIO 139 Male Reproductive System Terms

Flashcards for Male Reproductive System

Testis

Male reproductive gland; produces sperm and testosterone

Epididymis

Coiled tube system that stores sperm and helps in their maturation

Scrotum

Pouch of skin that contains the testes

Tunica Albuginea

Fibrous capsule that surrounds the testis

Testicular Artery, Vein, and Nerve

Blood vessels and nerves supplying the testis

Ductus Deferens

Tube that carries sperm from the epididymis to the ejaculatory duct

Spermatic Cord

Bundle containing the ductus deferens, testicular artery/vein/nerve, and other structures

Inguinal Canal

Passageway in the abdominal wall that transmits the spermatic cord

Seminal Vesicles

Glands near prostate that secrete a fluid that contributes to semen

Ejaculatory Duct

Duct formed by the union of the ductus deferens and the seminal vesicle duct

Prostate Gland

Gland that surrounds the urethra and contributes to semen

Prostatic Urethra

Part of the urethra that passes through the prostate gland

Membranous Urethra

Part of the urethra that passes through the urogenital diaphragm

Spongy Urethra

Part of the urethra that passes through the penis

Bulbourethral Gland

Glands that secrete a lubricating mucus into the urethra

Glans Penis

Enlarged distal end of the penis

Prepuce

Foreskin; a retractable fold of skin covering the glans penis

Corpus Cavernosum

One of the two dorsal erectile bodies of the penis

Corpus Spongiosum

Ventral erectile body of the penis; surrounds the spongy urethra

Bladder

Organ that stores urine

Seminiferous Tubules

Tubes within the testis where sperm are produced

Interstitial Cells

Cells located between the seminiferous tubules that produce testosterone

Tubulus Rectus

Straight tubule that connects the seminiferous tubules to the rete testis

Rete Testis

Network of tubules in the testis that receives sperm from the tubulus rectus

Efferent Ductule

Ducts that carry sperm from the rete testis to the epididymis

Lobule

Compartment within the testis containing seminiferous tubules

Gubernaculum

Helps pull testes to scrotum

Testes descend through

inguinal ring prior to birth

Gamate

Sex cell, egg or sperm

Y sex chromosome

male

X sex chromosome

Female

male primary sex organs

gonads - testes or ovaries

male secondary sex organs

ducts, glands, penis

female secondary sex organs

uterine tubes, vagina, uterus

sperm carry

X and Y chromosomes

XY chromosomes

become male

XX chromosomes

become female

what duct develops in male and disappear in female zygote

mesonpheric develop into repro tract

what duct disappear in male ?

paramesonepheric disappear in male and develop in female

Y chromosome has gene called

SRY - sex determining region

testosterone starts to secrete in week

8-9

SRY codes for protein called

TDF

MIF is secreted to cause atrophy of

paramesonepheric duct in males

what anchors the gonads to abdominal pelvic cavity

connective tissue cord gubernaculum

what muscles draw in or relax testes

creamaster and dartos in scrotum contract or relax to cool or heat

what acts as heat exchange in testes

pampiniform plexus

germ cells become

sperm

sperm flow

efferent ductules

epididymis

ductus deferens

ejact duct

urethera

sperm maturation and storage site?

epididymis

seminal glands contribute 65-70% secretion to form

semen

what gland produces pre ejaculatory fluid and neutralizes acidity?

bulbourethral glands

in males puberty onsets at age

10-12

LH is responsible for stimulating secretion of

testosterone in males

ovulation in females

FSH stimulates

sperm production males

egg cells in females

meosis

A form of cell division in which a diploid cell divides twice and produces four haploid daughter cells; occurs only in gametogenesis

testis

primary male reproductive organ that make sperm and testosterone

Epididymis

coiled tube in testes, contains head, body tail. holds sperm until mature and stores in tail.

scrotum

sac skin holds testes

tunican albuginea

white covering around each testie

testicular artery, vein, nerve

bring in nutrients, take away waste

Ductus Deferens

tube carries sperm from epididymis to ejact duct

spermatic cord

bundle includes duct def, blood vessels, nerves

inguinal canal

spermatic cords travels through

ejaculatory duct

short ducts connects to urethra

prostate gland

below bladder adds fluid to semen

glans penis

tip of penis

prepuce

fold of skin at head of penis

corpus cavernosum

erectile columns of tissue on sides of penis that fill with blood during erection

corpus spongiosum

erectile tissue around urethra prevents it closing during erection