Shared Flashcard Set

Details

Test 7
third pg of notes
24
Anatomy
11th Grade
04/12/2016

Additional Anatomy Flashcards

 


 

Cards

Term
Another term for sustentacular cells
Definition
sertoli
Term
What surround and provide nutrients and chemicals that help spermatids grow, and secrete hormone inhibin to depress production of FSH and GnRH to slow spermatid production depending on numbers being produced?
Definition
sustentacular cells
Term
How is the head of sperm shaped?
Definition
flattened ellipse containing a nucleus with DNA and chromosomes
Term
What is at the tip of the head of the sperm?
Definition
acrosomal cap that contains enzymes that help sperm penetrate the egg
Term
Which part of the sperm provides ATP to move the tail that is the only flagellum in the human body?
Definition
mitochondria in the middle piece of the sperm
Term
forms a propelling, whiplike motion
Definition
flagellum
Term
What must the sperm cell absorb to get energy?
Definition
nutrients (primarily fructose) from surrounding fluid
Term
What beings at puberty and continues until relatively late in life (past age 70?
Definition
spermatogensis
Term
stores and protects spermatozoa and facilitates functional maturation over the two week period there
Definition
epididymis
Term
What are not moblie when they leave the epididymis?
Definition
sperm
Term
process where sperm begin to swim, and are now actively able to fertilize the egg after being exposed to conditions in female reproductive tract
Definition
capacitation
Term
Another term for ductus deferens
Definition
vas deferens
Term
the expanded portion of vas deferens tubes before seminal vesicle
Definition
ampulla
Term
What moves spermatozoa through vs deferent tubes, and they can remain here, stored for several months?
Definition
peristaltic contractions
Term
What is a tube that extends 7-8 inches from the urinary bladder to the tip of the penis (it is used by the urinary and repro systems in the male)?
Definition
urethra
Term
glands embedded in connective tissue another side of midline, between bladder and rectum (about 6 in long)
Definition
seminal vesicles
Term
What percentage of volume of semen do the seminal vesicles contribute?
Definition
60%
Term
What do the seminal vesicles secrete for sperm energy?
Definition
fructose
Term
What do the seminal vesicles secrete that can stimulate smooth muscle contractions in female report tract (helps get sperm to egg)?
Definition
prostaglandins
Term
What does fibrinogen do after ejaculation?
Definition
forms a temporary clot with vagina to help hold fluids
Term
What are slightly alkaline to help neutralize acidic prostate and vagina secretions harmful to sperm?
Definition
seminal vesicle secretions
Term
What gain ability to swim using these seminal vesicle secretions?
Definition
sperm
Term
small, muscular organ about 4 cm in diameter, encircles proximal portion of urethra as it leaves bladder, produces a slightly acidic fluid that contributes 20-30% of semen volume, it is thin and milky and helps prepare sperm for entrance to vagina
Definition
prostate gland
Term
What is contained in prostate secretions and is an antibiotic that many help prevent UTIs in males?
Definition
seminalplasmin
Supporting users have an ad free experience!