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Stack #97512

A&P II Male reproductive system

QuestionAnswer
a 23 chromosome female gamete ovum
a 23 chromosome male gamete spermatozoon
46 chromozomes capable of developing into a new individual zygote
an ovoid structure that is about five centimeters long and three centimeters in diameter and is enclosed by a tough white fibrous capsule. testis
subdivides the testis into about 250 lobules septa
Each lobule contains a ___________ _________ that courses posteriorly and unites to form a complex network of channels. seminiferous tubule
These channels give rise to ducts that join the epididymis
The seminiferous tubules are lined with __________ cells that produce sperm. spermatogenic cells
_________ cells are located within the spaces between the seminiferous tubules and produce and secrete male sex hormones. Interstitial cells
A tad-pole shaped structure with a flattened head, cylindrical body, and an elongated tail. Sperm cell
The head is composed of a nucleus containing highly compacted chromatin.
The __________ contains enzymes that aid in penetrating the egg cell. acrosome
The midpiece contains a central core and many ________ arranged in a spiral. mitochondria
The tail of a sperm cell consists of several _________ enclosed in a cell membrane extension. microtubules
During the embryonic stage ___________become active in response to hormones. spermatogonia
Some spermatogonia undergo mitosis while others enlarge into primary spermatocytes.
At puberty, ________ causes the primary spermatocytes to undergo meiosis and yield secondary spermatocytes. testosterone
Each secondary spermatocyte divides into two spermatids.
Spermatids mature into sperm cells.
Created by: tamiboren
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