Male Reproductive System
acrosome
isolated sperm
flagellum
isolated sperm
head of sperm
isolated sperm
midpiece of tail
isolated sperm
nucleus
isolated sperm
mitochondria - provides ATP to move the spermatozoa
isolated sperm and function
endocrine
The ---(1)--- function involves the ductless secretion of testosterone.
exocrine
The ---(1)---- nature of the male reproductive system is the secretion of gametes through ducts or tubules.
testes
The gamete-producing structures of the male reproductive system are the ---(1)---
1 corpus spongiosum and 2 corpus cavernosum
The penis contains three cylinders of erectile tissue, what are they?
35 degrees C
The production of sperm must occur at what temperature?
epididymis
The sperm travel from the rete testis into the ---(1)---, where they are stored and mature.
frenulum - richly supplied with nerve endings
black arrow
bulb - extension of corpus spongiosum
16
ejaculatory duct
16
root
16 and 17
16. dartos muscle Function - smooth muscle that lines the scrotum and contracts when the testes are cold, thus bringing them closer to the body. When the environment around the testes is warm, the dartos muscle relaxes and the testes descend from the body to cool.
16 and function
crus - extension of corpus cavernosum
17
prostate gland
17
bulbourethral gland
18
corpus spongiosum
18
corpus cavernosum
19
dorsal artery
2
2. cremaster muscle Function - cluster of skeletal muscle attached to the testes and they contract to bring tests up to warm them and relax to lower testes.
2 and function
spermatic cord (cremaster muscle (1), testicular artery (2), ductus deferens (3), pampiniform plexus (4) also contains testicular nerves)
2-5
urethra
20
prostatic urethra (urethra that passes through prostate gland (#2))
3
root of penis
3
testicular artery and veins wrapped around it
3
corpus cavernosum
4
ductus (vas) deferens
4
ductus deferens
4
membranous urethra - (as the prostatic urethra exits the prostate gland it becomes the membranous urethra)
4
rete testis
4
body of epididymis
5
shaft of penis
5
secondary spermatocyte
5 - Histology of the Testis
corpus cavernosum
6
tail of epididymis
6
spermatids
6 - Histology of the Testis
corpus spongiosum
7
spermatic cord
7
spermatozoa
7 - Histology of the Testis
blood vessels and nerves
8
epididymis
8
spongy urethra
8
urethra
8
corpus spongiosum
9
glans of penis
9
prepuce
9
seminiferous tubule
9
seminal vesicle
15
seminal fluid
---(1)--- consists of secretions from the seminal vesicles, prostate gland, and bulbourethral glands.
semen
---(1)--- consists of seminal fluid plus spermatozoa
dorsal vein
1
head of epididymis
1
interstitial cells
1 - Histology of the Testis
1. bulbourethral glands 2. adds a lubricant to spermatozoa
1. name #15 2. function #15
deep artery
10
prepuce
10
testes
11
prepuce
12
scrotum
12
glans
13
ampulla of ductus deferens
14
primary spermatocytes (divide by meiosis to form secondary spermatocytes)
Histology of the Testis
seminiferous tubules - where spermatozoa are produced
Histology of the Testis
spermatogonia - (outer row of cells, reproduce by mitosis to produce primary spermatocytes)
Histology of the Testis
spermatozoa
Histology of the Testis
1. interstitial cells 2. testosterone
Histology of the Testis - What cell is highlighted and what does it produce?
true
True/False - The testes are considered mixed glands in that they have both an exocrine and an endocrine function.
1. prostatic urethra 2. membranous urethra 3. spongy urethra
What are the three regions of the male urethra?
Adds buffering fluid to spermatozoa
What is the function of the prostate gland? (#2)
gland that adds fluid to spermatozoa
What is the function of the seminal vesicle (#15)?
