Unit P – Review #1 KEY
1. Testes are responsible for both SPERM
PRODUCTION and for TESTOSTERONE (and some
other androgens – male sex hormones) production.
2. The testes are suspended outside the main body
region in the Scrotum. This helps keep them in a
cooler environment. Spermatogenesis and sperm
viability is best around 34-35 0C, meanwhile the
body is around 37 0C. (Watch the scrotum re-tract
when dipped into cold water in this YOUTUBE video
clip – JUST KIDDING! LOL!)
3. Inside the testes lobules are SEMINIFEROUS TUBULES.
4. SEE DIAGRAM on back of review and check with answer
key below
#1 - Vas Deferens – Tube that conducts sperm to urethra.
#2 - Seminal Vesicle – Adds Prostaglandins and Fructose etc.
#3 - Prostate Gland – Adds alkali solution to help counteract acidic
vagina.
#4 - Cowper's (Bulbourethral) Gland – Secretes mucous to lubricate
urethra.
#5 - Epididymis – Stores sperm while it matures.
#6 - Testis (Testicle) – Produce sperm and Testosterone.
#7 - Scrotum – Testes sac, helps keep testes at lower temperature for
optimal spermatogenesis.
#8 - Penis – Copulation (intercourse)
#10 - Urinary Bladder – Temporarily stores urine.
#11 - Urethra – Tube to conduct urine and semen
5. Spermatids are immature sperm cells, while spermatozoa
are fully mature with a fully functional flagellum.
6. Sertoli cells function to provide nutrients to the
developing spermatogenic cells.
7. INTERSTITIAL CELLS Secrete androgen (male sex
hormones) primarily TESTOSTERONE. Triple T – memory
device
LO – P-2 – Path of Sperm
1. Sperm mature and are stored inside the EPIDIDYMUS.
2. The Vas Deferens is a tube that forms a pathway to
conduct sperm from the epididymus to the ejaculatory
duct near the prostate gland. See Picture below:
3. See Diagram - Fluorescent Green Pathway
TESTES  EPIDIDYMIS  VAS DEFERENS  EJACULATORY DUCT 
(Seminal Vesicle)  Prostate  (Cowper's Gland)  URETHRA
4. Semen bearing the sperm travels into the urethra and
out of the urethra at the Glans Penis.
LO P-3
1. The main sources of Seminal Fluid are:
Seminal Vesicles (2), Prostate (1), Cowper’s Glands (2)
and don’t forget the Testes.
2. Seminal Fluid serves the following functions:
A) Bulbourethral (Cowper's) Gland
B) Seminal Vesicle
C) Seminal Vesicle
D) Prostate Gland – (pH)
LO P-4
1. The acrosome is a special lysosome at the tip of the
sperm head.
2. Its function is to release hydrolytic enzymes to digest a
pathway through the protective covering around
egg/ovum.
3. Mitochondria generate ATP which is used to undulate the
flagellum microtubules.
4. A flagellum with its 9+2 arrangement in the shaft.
Anchored with a 9 + 0 arrangement in the Basal Body.