Term
| Another term for sustentacular cells |
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Definition
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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? |
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Definition
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Term
| How is the head of sperm shaped? |
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Definition
| flattened ellipse containing a nucleus with DNA and chromosomes |
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Term
| What is at the tip of the head of the sperm? |
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Definition
| acrosomal cap that contains enzymes that help sperm penetrate the egg |
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Term
| Which part of the sperm provides ATP to move the tail that is the only flagellum in the human body? |
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Definition
| mitochondria in the middle piece of the sperm |
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Term
| forms a propelling, whiplike motion |
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Definition
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Term
| What must the sperm cell absorb to get energy? |
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Definition
| nutrients (primarily fructose) from surrounding fluid |
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Term
| What beings at puberty and continues until relatively late in life (past age 70? |
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Definition
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Term
| stores and protects spermatozoa and facilitates functional maturation over the two week period there |
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Definition
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Term
| What are not moblie when they leave the epididymis? |
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Definition
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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 |
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Definition
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Term
| Another term for ductus deferens |
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Definition
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Term
| the expanded portion of vas deferens tubes before seminal vesicle |
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Definition
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Term
| What moves spermatozoa through vs deferent tubes, and they can remain here, stored for several months? |
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Definition
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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)? |
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Definition
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Term
| glands embedded in connective tissue another side of midline, between bladder and rectum (about 6 in long) |
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Definition
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Term
| What percentage of volume of semen do the seminal vesicles contribute? |
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Definition
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Term
| What do the seminal vesicles secrete for sperm energy? |
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Definition
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Term
| What do the seminal vesicles secrete that can stimulate smooth muscle contractions in female report tract (helps get sperm to egg)? |
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Definition
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Term
| What does fibrinogen do after ejaculation? |
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Definition
| forms a temporary clot with vagina to help hold fluids |
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Term
| What are slightly alkaline to help neutralize acidic prostate and vagina secretions harmful to sperm? |
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Definition
| seminal vesicle secretions |
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Term
| What gain ability to swim using these seminal vesicle secretions? |
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Definition
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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 |
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Definition
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Term
| What is contained in prostate secretions and is an antibiotic that many help prevent UTIs in males? |
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Definition
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