Which one of the following statements about human sperm is correct?
Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilization
The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilization
Acrosome serves as a sensory structure leading the sperm towards the ovum
Acrosome serves no particular function
Nebenkern is a part of
foetus
human sperm
human ovum
graafian follicle
Where do sperms get matured?
In seminal vesicle
Seminiferous tubules
In epididymis
Vasa efferentia
Withdrawal of which of the following hormones is the immediate cause of menstruation?
Oestrogen
FSH
FSH-RH
Progesterone
Sertoli's cells are regulated by the pituitary hormone known as
GH
Prolactin
LH
Middle piece of sperm contains
mitochondria, Golgi bodies, centriole
axial filament, centriole, Golgi bodies
mitochondria, centriole, axial filament
Golgi bodies, axial filament, centriole
Cessation of menstrual cycle in a woman is called
lactation
menopause
ovulation
parturition
Corpus luteum secretes
Layers of an ovum from outside to inside is
corona radiata, zona pellucida and vitelline membrane
zona pellucida, corona radiata and vitelline membrane
vitelline membrane, zona pellucida and corona radiata
zona pellucida, vitelline membrane and corona radiata
In human females, the eggs are
alecithal
macrolecithal
mesolecithal
microlecithal
