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male reproductive system

  In cooperation with the women, men were also given the task of supplying generations upon generations of brethren for mankind’s race. They are also equipped with miracle-inducing parts that enable them to propagate with the woman and bring forth life into the world. Internal Structures Lateral view of the internal male reproductive organs. Epididymis This is a tightly coiled tube that is responsible for conducting the sperm from the tubule to the vas deferens. It has a length of approximately 20 feet long. Some sperm are stored in the epididymis, along with the semen. The sperm takes an estimated 12 to 20 days of travel along the epididymis, and a total of 64 days to reach maturity. Vas Deferens The function of the vas deferens is to carry the sperm through the inguinal canal from the epididymis into the abdominal cavity where it will end at the seminal vesicles and the ejaculatory duct. It is a hollow tube that is protected by a thick fibrous coating and surrounded by arteries a...

Female reproductive system.

  Women have the responsibility of bringing forth life into the world, hence the creation and the function of the female reproductive system. This system performs a miracle from the conception of life until the birth of the growing life within, and it is only proper to be introduced to the main characters and supporting roles of this play. Internal Structures Ovaries The ovaries are the ultimate life-maker for the females. For its physical structure, it has an estimated length of 4 cm and width of 2 cm and is 1.5 cm thick. It appears to be shaped like an almond. It looks pitted, like a raisin, but is grayish white in color. It is located proximal to both sides of the uterus at the lower abdomen. For its function, the ovaries produce, mature, and discharge the egg cells or ova. Ovarian function is for the maturation and maintenance of the secondary sex characteristics in females. It also has three divisions: the protective layer of epithelium, the cortex, and the central medull...

Respiratory system (anatomy &physiology)

Functions of the Respiratory System   The functions of the respiratory system are: Oxygen supplier.  The job of the respiratory system is to keep the body constantly supplied with oxygen. Elimination.  Elimination of carbon dioxide. Gas exchange.  The respiratory system organs oversee the gas exchanges that occur between the blood and the external environment. Passageway.  Passageways that allow air to reach the lungs. Humidifier.  Purify, humidify, and warm incoming air. Anatomy of the Respiratory System The organs of the respiratory system include the nose, pharynx, larynx, trachea, bronchi, and their smaller branches, and the lungs, which contain the alveoli. The Nose The nose is the only externally visible part of the respiratory system. Nostrils.  During breathing, air enters the nose by passing through the nostrils, or nares. Nasal cavity.  The interior of the nose consists of the nasal cavity, divided by a midline nasal septu...

Urinary system (anatomy &physiology )

Functions of the Urinary System   The function of the kidneys are as follows: Filter.  Every day, the kidneys filter gallons of fluid from the bloodstream. Waste processing.  The kidneys then process this filtrate, allowing  wastes  and  excess ions  to leave the body in urine while returning needed substances to the blood in just the right proportions. Elimination.  Although the lungs and the skin also play roles in excretion, the kidneys bear the  major responsibility  for eliminating nitrogenous  wastes ,  toxins , and  drugs from the body. Regulation.  The kidneys also regulate the blood’s volume and chemical makeup so that the proper balance between  water  and  salts  and between  acids  and  bases  is maintained. Other regulatory functions.  By producing the enzyme  renin , they help regulate blood pressure, and their hormone  ...

Integumentary system (Anatomy &physiology)

  Functions of the Integumentary System   The functions of the integumentary system are: Protection.  The skin protects deeper tissues from mechanical damage (bumps), chemical damage (acids and bases), ultraviolet radiation (damaging effects of sunlight), bacterial damage, thermal damage (heat or cold), and desiccation (drying out). Temperature regulation.  The skin aids in body heat loss or heat retention as controlled by the nervous system. Elimination.  The skin aids in the secretion of urea and uric acid through perspiration produced by the sweat glands. Synthesizer.  Synthesizes vitamin D through modified cholesterol molecules in the skin by sunlight. Sensation.  The integumentary system has sensory receptors that can distinguish heat, cold, touch, pressure, and pain. Anatomy of the Integumentary System The skin and its derivatives (sweat and oil glands, hair and nails) serve a number of functions, mostly protective; together, these...