|
Introduction to Reproductive Biology and Sex | Introduction to Biology | www.biology-nation.com
"An insightful, unbiased view on biology today, thorough article about the introduction to Reproductive Biology and Sex"
|
 |
|
|
Introduction to Reproductive Biology and Sex
Reproductive Biology and Sex is pure biology at its best. Reproductive Biology and Sex is a natural process which occurs when two members of the opposite sex, male and female, engage in sexual intercourse. Reproductive Biology and Sex has been around since it first evolved into a means of procreation in Biology and History. Humans are not the only species to engage in sexual activity, animals also have the innate desire to have sex and procreate. The term "sex" also refers to what gender an organism is, as in the male sex of the female sex. So essentially Reproductive Biology and Sex go hand in hand. Reproductive Biology and Sex is how all living things on this planet came to be. Through Reproductive Biology and Sex is how evolution overtime occurs, during Reproductive Biology and Sex DNA from both the female sex and the male sex form a union or mass of cells called a Zygote. When the male sex sperm and female sex egg merge a whole new organism is created. The half of DNA found in the sperm from the male sex, while the other half is from the female sex.
At this point both the male sex sperm and the female sex egg are called Haploid sex cells, because they only contain half the amount of DNA which would normally be found in a non-sex cells; also known as "somatic cells", cells of the body;not sex cells. Reproductive Biology and Sex deals with a couple of aspects of biology, for instance fusion of the male sex sperm and the female sex egg is a biochemical process. While this fusion of male sex sperm and female sex egg occurs, genetics kicks in and merges the two halves of DNA; remember the first half comes from the male sex sperm and the other half from the female sex egg combine and make 1 complete working strand of DNA.
Both male sex sperm and female sex egg are also called gametes. After the male sex sperm merges with the female sex egg This new mass of dividing cells A.K.A. Zygote is now a mass of dividing diploid sex cells because each individual cell contains 2 copies of DNA, one from the male sex sperm and the other from the female sex egg. By the male sex having sex with the female sex all organisms that engage in Reproductive Biology and Sex ensure the propagation of their own species and their continued survival against extinction.
Overtime, through sex between the male sex and the female sex, entire species can change and adapt to the ever-changing climate changes in their environment; survival of the fittest. If you are unable to have sex then your DNA will not be spread throughout time and as new generations develop. Reproductive Biology and Sex allows for male sex and female sex organisms to transfer their traits which have benefitted them, and pass those same traits onto their offspring. The Reproductive Biology and Sex section here at Biology-Nation will cover and introduce you to how Reproductive Biology and Sex works and how beneficial it is for species to engage in sex. Also Biology-Nation will discuss some sexual problems that may occur do to Reproductive Biology and Sex.
|
|
 |
 |
|
Mammalian Sexual Characteristics and List of Primary Male and Female Sexual Organs
A sex organ, or primary sexual characteristic, as narrowly defined, is any of the anatomical parts of the body which are involved in sexual reproduction and constitute the reproductive system in a complex organism.
In mammals, these include:
-
Female
-
Bartholin's glands
-
cervix
-
clitoris
-
clitoral hood
-
clitoral glans (glans clitoridis)
-
Fallopian tubes
-
labium
-
ovaries
-
Skene's gland
-
uterus
-
vagina
-
vulva
-
Male
-
bulbourethral glands
-
epididymis
-
penis
-
prostate
-
scrotum
-
seminal vesicles
-
testicles
|
Reproductive Biology and Sex (Developmental Biology)
Genitals
The Latin term genitalia, sometimes anglicized as genital area, is used to describe the externally visible sex organs, known as primary genitalia or external genitalia:in males the penis in females the clitoris and vulva.
The other, hidden sex organs are referred to as the secondary genitalia or internal genitalia. The most important of these are the gonads, a pair of sex organs, specifically the testes in the male or the ovaries in the female. Gonads are the true sex organs, generating reproductive gametes containing inheritable DNA. They also produce most of the primary hormones that affect sexual development, and regulate other sexual organs and sexually differentiated behaviors.
A more ambiguously defined term is erogenous zone, subjectively, any portion of the body that when stimulated produces erotic sensation, but always prominently including the genitalia.
Development
Main article: Development of the reproductive system
In typical prenatal development, sexual organs originate from a common anlage anatomy during early gestation and differentiate into male or female variations. The SRY gene, usually located on the Y chromosome and encoding the testis determining factor, determines the direction of this differentiation. The absence of it allows the gonads to continue to develop into ovaries.
Thereafter, the development of the internal reproductive organs and the external genitalia is determined by hormones produced by certain fetal gonads (ovaries or testes) and the cells' response to them. The initial appearance of the fetal genitalia (a few weeks after conception) looks basically feminine: a pair of "urogenital folds" with a small protuberance in the middle, and the urethra behind the protuberance. If the fetus has testes, and if the testes produce testosterone, and if the cells of the genitals respond to the testosterone, the outer urogenital folds swell and fuse in the midline to produce the scrotum; the protuberance grows larger and straighter to form the penis; the inner urogenital swellings grow, wrap around the penis, and fuse in the midline to form the penile urethra.
Each sexual organ in one sex has a homologous counterpart in the other one. See a list of homologues of the human reproductive system.
In a larger perspective, the whole process of sexual differentiation also includes development of secondary sexual characteristics such as patterns of pubic and facial hair and female breasts that emerge at puberty. Furthermore, differences in brain structure arises, affecting, but not absolutely determining, behavior.
Anatomical terms related to sex
The following is a list of anatomical terms related to sex and sexuality:
-
Anterior fornix erogenous zone
-
Areola
-
Bartholin's gland
-
Breast
-
Bulbospongiosus muscle
-
Bulbourethral gland
-
Cervix
-
Cleft of venus
-
Clitoris
-
Corona of glans penis
-
Corpus cavernosum of clitoris
-
Corpus spongiosum penis
-
Cremaster muscle
-
Dartos
-
Deep perineal pouch
-
Egg (biology)
-
Ejaculatory duct
-
Endometrium
-
Epididymis
-
Fallopian tube
-
Foreskin
-
Frenulum
-
Frenulum clitoridis
-
Frenulum labiorum pudendi
-
Frenulum of prepuce of penis
-
Fundiform ligament
-
G-spot
-
Gartner's duct
-
Genital tubercle
-
Genitofemoral nerve
-
Glans
-
Glans penis
-
Hymen
-
Internal pudendal artery
-
Intromittent organ
-
Ischiocavernosus muscle
-
Labia majora
-
Labia minora
-
Labium (genitalia)
-
Mammary gland
-
meatus
-
Mons pubis
-
Müllerian duct
-
Nipple
-
Ovary
-
Ovum
-
Penile artery
-
Penis
-
Perineum
-
Prepuce
-
Prostate
-
Pubic hair
-
Pubic symphysis
-
Pubococcygeus muscle
-
Pudendal nerve
-
Perineal raphe
-
Recto-uterine pouch
-
Ridged band
-
Scrotum
-
Seminal vesicle
-
Seminiferous tubule
-
Skene's gland
-
Spermatic cord
-
Spermatozoon
-
Splanchnic nerves
-
Testicle
-
Tunica albuginea of testis
-
Urethra
-
Urethral sphincter
-
Urethral sponge
-
Uterus
-
Vagina
-
Vas deferens
-
Vulva
See also
|
|
|
Copyright, Website Disclaimer and Privacy Policy Notice 2010
Open-Source Content Found on This Site is Licensed Under Creative Commons Attribution Share-Alike License v3.0. All other content, including content pages, articles, videos, pictures; may be subject to copyright. Website design and all unique written contents, documents, graphics, images, tables and videos produced by biology-nation.com is the sole property of biology-nation.com © 2009-2010. Reproduction or illegal copying of certain content found on biology-nation.com may violate both copyright and Intellectual Property laws. Official trademarks (TM)®, logos, national and international corporate names and individual licenses are property of their proper and respective owners.
Please view and read entire site disclaimer and site privacy policy pages for notices and terms of use.
“Befriend yourself with the limitless resources and references; all pertaining to biology, only here at biology-nation.com"
By TwitterButtons.com
| Biology-Nation on Myspace | Biology-Nation on Facebook | Biology-Nation on Twitter |
Biology-Nation Search Query Tags
nation biology donate recommend guestbook myspace facebook twitter history origin science religion human genome project reproductive topics lists colleges universities course introduction medical terminology society agriculture ecology technology computers industry health medicine principles genetics cellular social network forum links biomedical software botany aerobiology microbiology anatomy neuroanatomy neurophysiology immunology endocrinology enzymology
Biology-Nation International Hits Counter
List of Biology Disciplines by Course (A - Z)
A
Aerobiology (Microbiology) -- Anatomy (Neuroanatomy, Neurophysiology, Health Science, Immunology, Endocrinology, Enzymology, Embryology, Physiology) -- Anthropology (Paleontology, Paleobiology, Paleobotany, Paleozoology) -- Arachnology (Zoology) -- Astrobiology (Xenobiology) -- Autecology
B
Bacteriology (Microbiology) -- Bactrachology -- Biochemistry (BioOrganic Chemistry) -- Bioethics (Sociobiology) -- Biology (General Biology, Introduction to Biology) -- Biology by Topic -- Biology Colleges and Universities -- Biology by Course -- Biology and Medical Terminology -- Biology Lists -- Biology and History -- Biology and Society -- Biology and Agriculture -- Biology and Ecology -- Biology and Technology -- Biology and Computers -- Biology and Industry -- Bionics -- Biogeography -- Bioinformatics (Computational Biology, Biotechnology) -- Biological Psychiatry (Psychiatry, Psychophysics, Psychopharmacology) -- Biological Life Cycle (The Origin of Life) -- Biomechanics -- Biomedical Research (The Human Genome Project) -- Biotechnology -- Biophysics (Psychophysics) -- Behavioral Neuroscience (Cognitive Neuroscience, Neuroscience, Neuroanatomy, Neurophysiology, Systems Neuroscience, Computation Neuroscience) -- Botany (Botanical Terminology Terms, Paleobotany, Phytology, Phytopathology, Plant Pathology, Phycology)
C
Cellular Biology (Microbiology) -- Cellular Biology Topics -- Cell Culture (Histology) -- Cladistics-- Carcinology (Freshwater Biology, Marine Biology) -- Computational Biology (Bioinformatics, Biotechnology) -- Cryptozoology (Paleozoology, Zoology) -- Cytology-- (Cell Culture, Human Cell Types, Oncology) -- Conservation Biology -- Cognitive Neuroscience -- Computational Neuroscience (Behavioral Neuroscience, Neuroanatomy, Neurophysiology, Systems Neuroscience, Neuroscience)
D
Developmental Biology (Evolutionary Developmental Biology) -- Disease (Genetic Diseases, Infectious Diseases, Oncology, Toxicology)
E
Ecology (Theoretical Ecology, Symbiosis, Population Ecology, Synecology) -- Environmental Biology (Conservation Biology, Ecology) -- Epidemiology -- Ethology -- Entomology (Zoology, Paleozoology) -- Evolutionary Biology (Evolution) -- Evolutionary Developmental Biology -- Endocrinology (Enzymology, Immunology) -- Embryology (Reproductive Biology and Sex, Stem Cells, Health Science, Medicine)
F
Freshwater Biology (Carcinology, Ichthyology, Marine Biology, Phycology, Zoology)
G
Genetics (Population Genetics, Quantitative Genetics, Genomics, Proteomics) -- Gene Therapy (Biomedical Research) -- General Biology -- Genetically Modified Organisms (Bioethics, Biology and Agriculture, G.M.O.)
H
The History of Biology (History of Biochemistry -- History of Biotechnology, History of Genetics, History of Molecular Biology) -- History of Creationism (History of Creation vs. Evolution Controversy) -- History of Science (History of Biology and Organic Chemistry, History of Paleontology) -- History of Evolution (History of Molecular Evolution) -- The History of Medicine (History of Immunology) -- Health Science (Pathology, Toxicology) -- Health Science and Medicine Topics -- Human Cell Types (Cytology, Histology, Oncology, Stem Cells) -- Human Biology (Anatomy, Physiology, Gene Therapy, Health Science, Endocrinology, Enzymology, Embryology) -- Herpetology (Zoology, Veterinary Science) -- The Human Genome Project (Biomedical Research)
I
Immunology (Health Science, Anatomy, Physiology, Endocrinology, Enzymology, Embryology) -- Infectious Diseases -- Invasive Biology Terminology Terms -- Ichthyology (Carcinology, Freshwater Biology, Marine Biology, Veterinary Science, Zoology)
J
K
L
Limnology
M
Malacology -- Marine Biology (Carcinology, Freshwater Biology, Ichthyology, Zoology) -- Medicine (Biomedical Research, Gene Therapy, Health Science, Immunology, Endocrinology, Embryology, Enzymology, Pathology, Toxicology, Anatomy, Parasitology, Physiology, Reproductive Biology and Sex) -- Medical Terminology (Biology and Medical Terminology, Medical Terminology Terms, Medical Terminology in English, Medical Terminology Word Terminals) -- Microbiology -- Molecular Biology -- Morphology (Structural Biology) -- Mycology -- Myrmecology
N
Nematology (Zoology, Veterinary Medicine) -- Neuroscience (Neuroanatomy, Neurophysiology, Systems Neuroscience) -- Psychiatry (Biological Psychiatry, Psychopharmacology, Behavioral Neuroscience, Neuroethology, Psychophysics, Computational Neuroscience, Cognitive Neuroscience, Cognitive Science)
O
Oncology (Health Science, Cytology) -- Ontogeny -- Origin of Life (Biological Life Cycle, Creationism, Creation vs. Evolution Controversy, Evolution, Religion and Science) -- Ornithology (Zoology, Veterinary Medicine)
P
Paleontology (Paleobiology, Paleobotany, Paleozoology) -- Parasitology -- Pathology (Biomedical Research, Disease, Genetic Diseases, Health Science, Infectious Diseases, Medicine, Oncology, Toxicology, Plant Pathology, Phytopathology) -- Phylogenetics (Phylogeography, Phycology) -- Physiology (Neurophysiology, Neuroanatomy, Health Science, Immunology, Endocrinology, Enzymology, Embryology, Anatomy) -- Population Ecology (Population Genetics) -- Principles of Genetics (Genetics, Gene Therapy, Genetically Modified Organisms, G.M.O., Population Genetics, Quantitative Genetics) -- Proteomics (Enzymology, Genomics, Synthetic Biology) -- Psychiatry (Behavioral Neuroscience, Cognitive Neuroscience, Biological Psychiatry, Psychophysics, Psychopharmacology)
Q
Quantitative Genetics (Epidemiology)
R
Reproductive Biology and Sex (Embryology, Health Science, Medicine)
S
Science and Religion (Bioethics, Creationism, Creation vs. Evolution Controversy) -- Stem Cells (Cell Culture, Embryology) -- Structural Biology (Morphology) -- Systems Biology -- Synthetic Biology (Biomedical Research, Biotechnology, Biology and Industry, Proteomics) -- Sociobiology (Bioethics) -- Symbiology -- Synecology (Theoretical Ecology, Symbiosis, Population Ecology, Ecology)
T
Taxonomy -- Toxicology (Disease, Health Science, Pathology)
U
V
Virology (Microbiology) -- Veterinary Medicine (Zoology, Carcinology, Entomology, Marine Biology, Ichthyology, Herpetology, Nematology, Ornithology)
W
X
Xenobiology (Astrobiology, Biology and History, Origin of Life, Biological Life Cycle)
Z
Zoology (Cryptozoology, Entomology, Marine Biology, Ichthyology, Herpetology, Nematology, Ornithology, Paleozoology, Veterinary Medicine)
www.biology-nation.com
|
