The Vagina, Clitoris, Uterus and More by Share A lot of questions about how to have sexhow to masturbate, and worries about all of what's all going on down below can be easily solved by simply getting to know what genitals and other reproductive organs are all about. Many things some people presume are problems with some kinds of sex or genital function or appearance are just realities of anatomy they didn't know. It can help to get yourself a mirror, make sure you have some real privacy or at least a door that locks and some quality time to get to know your body and yourself. We'll just look at what you can see and feel, to get you started.
Skeleton of a diamondback rattlesnake Reptiles are a class of animals comprising turtlestuataraslizardssnakes and crocodiles. They are tetrapodsbut the snakes and a few species of lizard either have no limbs or their limbs are much reduced in size.
Their bones are better ossified and their skeletons stronger than those of amphibians. The teeth are conical and mostly uniform in size. The surface cells of the epidermis are modified into horny scales which create a waterproof layer. Reptiles are unable to use their skin for respiration as do amphibians and have a more efficient respiratory system drawing air into their lungs by expanding their chest walls.
The heart resembles that of the amphibian but there is a septum which more completely separates the oxygenated and deoxygenated bloodstreams.
The reproductive system has evolved for internal fertilization, with a copulatory organ present in most species. The eggs are surrounded by amniotic membranes which prevents them from drying out and are laid on land, or develop internally in some species.
The bladder is small as nitrogenous waste is excreted as uric acid. They have an inflexible trunk encased in a horny carapace above and a plastron below. These are formed from bony plates embedded in the dermis which are overlain by horny ones and are partially fused with the ribs and spine.
The neck is long and flexible and the head and the legs can be drawn back inside the shell.
Turtles are vegetarians and the typical reptile teeth have been replaced by sharp, horny plates. In aquatic species, the front legs are modified into flippers.
There is one living species, Sphenodon punctatus. The skull has two openings fenestrae on either side and the jaw is rigidly attached to the skull. There is one row of teeth in the lower jaw and this fits between the two rows in the upper jaw when the animal chews.
The teeth are merely projections of bony material from the jaw and eventually wear down. The brain and heart are more primitive than those of other reptiles, and the lungs have a single chamber and lack bronchi.
The tuatara has a well-developed parietal eye on its forehead. This results in the jaws being less rigidly attached which allows the mouth to open wider. Lizards are mostly quadrupeds, with the trunk held off the ground by short, sideways-facing legs, but a few species have no limbs and resemble snakes.
Lizards have moveable eyelids, eardrums are present and some species have a central parietal eye. The skeleton consists of a skull, a hyoid bone, spine and ribs though a few species retain a vestige of the pelvis and rear limbs in the form of pelvic spurs.Pancreas Anatomy Diagram. Plant Parts Worksheets for Kids.
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Diagram Of Cervical Spine Nerves. WebMD's Vagina Anatomy Page provides an image and definition of the vagina and describes its function, parts, and conditions that affect the vagina.
Learn characteristics of life anatomy physiology with free interactive flashcards. Choose from different sets of characteristics of life anatomy physiology flashcards on Quizlet. Log in Sign up. characteristics of life anatomy physiology Flashcards. Diagrams. Classes.
Users. The skeletal system includes all of the bones and joints in the body. Each bone is a complex living organ that is made up of many cells, protein fibers, and minerals. Animal Cell Anatomy Label the animal cell diagram using the glossary of animal cell terms.
Answers: The Arm in English Label the parts of the arm and hand in English. The vagina is an elastic, muscular canal with a soft, flexible lining that provides lubrication and sensation.
The vagina connects the uterus to the outside world. The vulva and labia form the.