Head region of the sperm contains

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(A) The head region of the sperm contains the nucleus and the acrosome.$1$. Structure of a sperm (spermatozoon): It consists of four parts,$i.e.$,head

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Nucleus and acrosome

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(A) The head region of the sperm contains the nucleus and the acrosome.$1$. Structure of a sperm (spermatozoon): It consists of four parts,$i.e.$,head,neck,middle piece,and tail,all enveloped by a plasma membrane.$2$. Head: It is the enlarged anterior part of the sperm,containing a large haploid nucleus (condensed chromatin body) and is capped by an acrosome.$3$. Acrosome: It contains hydrolytic enzymes that help in dissolving the membranes of the ovum during fertilization.$4$. Neck: It contains the proximal centriole,which is necessary for the first cleavage division of the zygote,and the distal centriole,which is connected to the tail filament.$5$. Middle piece: It contains numerous mitochondria that provide energy for the movement of the tail,facilitating sperm motility,which is essential for fertilization.$6$. Tail: It consists of axial filaments surrounded by the plasma membrane,helping the sperm to swim in a fluid medium.

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