10/16/24, 11:05 AM
Unit 9 ANSWERS VERIFIED 100% CORRECT
Terms in this set (104)
Testes• Scrotum• Epididymis• Ductus Deferens• Accessory Sex Glands• Penis• Urethra•
ale reproductive organs
Sigmoid Flexure
testes is the primary male reproductive organ
• Sperm contain ½ of genetic makeup
testes are Site of sperm production and testosterone synthesis
• Scrotum - sack of skin which carries testicles
scrotum functions as a heat regulator
• Spermatitic Cord
tucked up
pig scorum is
diffrent
• Epididymis - tube connects to testes (matures sperm)
• storage of spermatozoa (200 billion at a time)
Epididymis is
• spermatozoa mature as they migrate through
tube connects to epididymis
• Ductus Deferens -
• if removed, can't reproduce = vasectomy
there are three
• Prostate gland
• Accessory Sex Glands =
• Bulbourethral gland
• Vesicular gland
• Sigmoid Flexure - "S" shape in urethra allows for extension of penis outside of body for reproduction
1. Produce spermatozoa
Testicles functions
2. Produce testosterone
• Sperm made in seminiferous tubules
• Sertoli cells produce testosterone
testosternone is needed to create sperm
mature sperm has a tail
chart male
Epididymis is the • Site of storage for spermatozoa
Epididymis Allow for maturation
• Head
three part of epididymis • Body
• Tail (only sperm that are mature enough to fertilize)
epidiymis is lined with smooth muscle fibers to expel sperm during ejaculation
•Leydig cells found in seminiferous tubules and sperm develop around the cells
1/5
, 10/16/24, 11:05 AM
1.Protect the testicles
scrotum functions
Regulate the temperature of the testicles
sctotum needs to be lower then the body temp 5 to 6 c
scrotum is • Lined w/ sweat glands & by tunica dartos muscle
venous network (veins) that acts as a radiator to heat exchange and cool blood
• Pampiniform plexus is entering the testicles by increasing temperature of the blood exiting the testicles
Function begins at puberty
• Retroperitoneal position
Some animals do not have a scrotum
• Birds, elephants, armadillos, marine mammals
Ductus Deferens • Tube transports sperm from epididymis to urethra
• Lined with smooth muscle
Ductus deferens
• Propels sperm & fluid forward during ejaculation
• Species that ejaculate rapidly have an ampulla
• Stallion, buck, ram & bull
Enlargement of ductus deferens
•
Boar is slow copulator - no ampullae
1. Bulbourethral glands (2; Cowper's)
Accessory Sex Glands 2. Vesicular glands (2; Seminal Vesicles)
3. Prostate gland (1)
• Add volume to ejaculate (ASG fluid)
assessory sex glands funtion
• Add nutrients for sperm
acessory sex gland and sperm equals semen
• Must be pulled back into body when (Retractor Penis Muscle)
flaccid by RPM
• This penis has an S shape to accommodate (Sigmoid flexure)
size & rigidity
• Vascular penis can collapse upon itself • Stallion, dog, cat
when flaccid
• No sigmoid flexure
male poultry testes found in the body
chickens have no asg
• Semen ejaculates down vas deferentia into papillae in cloacal wall for chicken
chicken •Sperm stored in female for 10 to 30 days
Mammals 1 to 5 days
male chicken
vas deferns sperm transport
epididyymis transports spermatozoa
chicken dont have penis except for ducks
2/5
Unit 9 ANSWERS VERIFIED 100% CORRECT
Terms in this set (104)
Testes• Scrotum• Epididymis• Ductus Deferens• Accessory Sex Glands• Penis• Urethra•
ale reproductive organs
Sigmoid Flexure
testes is the primary male reproductive organ
• Sperm contain ½ of genetic makeup
testes are Site of sperm production and testosterone synthesis
• Scrotum - sack of skin which carries testicles
scrotum functions as a heat regulator
• Spermatitic Cord
tucked up
pig scorum is
diffrent
• Epididymis - tube connects to testes (matures sperm)
• storage of spermatozoa (200 billion at a time)
Epididymis is
• spermatozoa mature as they migrate through
tube connects to epididymis
• Ductus Deferens -
• if removed, can't reproduce = vasectomy
there are three
• Prostate gland
• Accessory Sex Glands =
• Bulbourethral gland
• Vesicular gland
• Sigmoid Flexure - "S" shape in urethra allows for extension of penis outside of body for reproduction
1. Produce spermatozoa
Testicles functions
2. Produce testosterone
• Sperm made in seminiferous tubules
• Sertoli cells produce testosterone
testosternone is needed to create sperm
mature sperm has a tail
chart male
Epididymis is the • Site of storage for spermatozoa
Epididymis Allow for maturation
• Head
three part of epididymis • Body
• Tail (only sperm that are mature enough to fertilize)
epidiymis is lined with smooth muscle fibers to expel sperm during ejaculation
•Leydig cells found in seminiferous tubules and sperm develop around the cells
1/5
, 10/16/24, 11:05 AM
1.Protect the testicles
scrotum functions
Regulate the temperature of the testicles
sctotum needs to be lower then the body temp 5 to 6 c
scrotum is • Lined w/ sweat glands & by tunica dartos muscle
venous network (veins) that acts as a radiator to heat exchange and cool blood
• Pampiniform plexus is entering the testicles by increasing temperature of the blood exiting the testicles
Function begins at puberty
• Retroperitoneal position
Some animals do not have a scrotum
• Birds, elephants, armadillos, marine mammals
Ductus Deferens • Tube transports sperm from epididymis to urethra
• Lined with smooth muscle
Ductus deferens
• Propels sperm & fluid forward during ejaculation
• Species that ejaculate rapidly have an ampulla
• Stallion, buck, ram & bull
Enlargement of ductus deferens
•
Boar is slow copulator - no ampullae
1. Bulbourethral glands (2; Cowper's)
Accessory Sex Glands 2. Vesicular glands (2; Seminal Vesicles)
3. Prostate gland (1)
• Add volume to ejaculate (ASG fluid)
assessory sex glands funtion
• Add nutrients for sperm
acessory sex gland and sperm equals semen
• Must be pulled back into body when (Retractor Penis Muscle)
flaccid by RPM
• This penis has an S shape to accommodate (Sigmoid flexure)
size & rigidity
• Vascular penis can collapse upon itself • Stallion, dog, cat
when flaccid
• No sigmoid flexure
male poultry testes found in the body
chickens have no asg
• Semen ejaculates down vas deferentia into papillae in cloacal wall for chicken
chicken •Sperm stored in female for 10 to 30 days
Mammals 1 to 5 days
male chicken
vas deferns sperm transport
epididyymis transports spermatozoa
chicken dont have penis except for ducks
2/5
