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Puberty Defining - Anatomy & Physiology (view source)
Revision as of 14:22, 7 December 2010
, 14:22, 7 December 2010Text replace - "[[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Fertilisation- Anatomy & Physiology" to "[[Fertilisation - Anatomy & Physiology"
* [[Copulatory Behaviour - Anatomy & Physiology#Ejaculation|Ejaculation]] is a complex process,requiring coordinated development of nerves, specific muscles and secretion of seminal fluids from the accessory sex glands.
* [[Copulatory Behaviour - Anatomy & Physiology#Ejaculation|Ejaculation]] is a complex process,requiring coordinated development of nerves, specific muscles and secretion of seminal fluids from the accessory sex glands.
* When development of all of these components occurs, [[Copulatory Behaviour - Anatomy & Physiology#Ejaculation|ejaculation]] can take place.
* When development of all of these components occurs, [[Copulatory Behaviour - Anatomy & Physiology#Ejaculation|ejaculation]] can take place.
* Generally the ability to [[Copulatory Behaviour - Anatomy & Physiology#Ejaculation|ejaculate]] preceeds the ability to produce sufficient spermatozoa to achieve [[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Fertilisation- Anatomy & Physiology|fertilization]].
* Generally the ability to [[Copulatory Behaviour - Anatomy & Physiology#Ejaculation|ejaculate]] preceeds the ability to produce sufficient spermatozoa to achieve [[Fertilisation - Anatomy & Physiology|fertilization]].
== Age when Spermatozoa First Appear in the Ejaculate ==
== Age when Spermatozoa First Appear in the Ejaculate ==
== Age when the Ejaculate Contains a Threshold Number of Spermatozoa ==
== Age when the Ejaculate Contains a Threshold Number of Spermatozoa ==
* Even if the ejaculate contains spermatozoa, there may be insufficient numbers for optimum [[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Fertilisation- Anatomy & Physiology|fertilization]].
* Even if the ejaculate contains spermatozoa, there may be insufficient numbers for optimum [[Fertilisation - Anatomy & Physiology|fertilization]].
* The presence of a threshold (minimum number) of spermatozoa is required. These thresholds vary between species.
* The presence of a threshold (minimum number) of spermatozoa is required. These thresholds vary between species.
* Reflect minimum seminal characteristics required to achieve pregnancy following [[Copulatory Behaviour - Anatomy & Physiology|copulation]].
* Reflect minimum seminal characteristics required to achieve pregnancy following [[Copulatory Behaviour - Anatomy & Physiology|copulation]].