Sperm Maturation Flashcards

0
Q

Why is capacitation required?

A

~7hr process of conditioning sperm so they are able to fertilize

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1
Q

Are freshly ejaculated sperm capable of fertilizing an oocyte?

A

NO!

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2
Q

What is the process of capacitation?

A

process of conditioning sperm

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3
Q

How long does capacitation take?

A

~7hrs

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4
Q

Where does capacitation occur?

A

promoted in the uterus and oviducts by secretory factors produced there

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5
Q

What changes occur in the sperm during capacitation?

A

enzymatic removal of glycoproteins from the sperm and the acrosome surface

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6
Q

What happens to acrosome membrane during acrosome reaction?

A

perforations develop in the acrosome membrane

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7
Q

When does a change in the acrosome membrane occur?

A
  • occurs when the capacitated sperm contacts the corona radiata
  • acrosomal membrane fuses at several points with sperm membrane
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8
Q

What does Hyaluronidase facilitate?

A

Facilitates penetration through corona radiata

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9
Q

What does Acrosin facilitate?

A

Facilitates penetration through zona pellucida

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