NERVOUS SYSTEM

HUMAN NERVOUS SYSTEM

 
There are two parts of our nervous system, the central nervous system, which includes the brain, spinal cord, and the peripheral nervous system. It consists of neurons found all over the body. The brain helps to regulate and run all the other systems of  human body.  The brain sends signals to the spinal cord and through the body's nerves to all the other organs. There are different parts of the brain which specialize in processing thoughts, memories, feelings, dreams, speech, physical coordination, balance, hunger, and sleep. Our nervous system is extremely complicated and helps the other systems in our body to communicate. Our nervous system is active at every moment of the day. It exchanges millions of signals corresponding with feeling and actions.

RESPIRATORY SYSTEM OF HUMAN BODY.

Respiratory system is a important system of human body. The respiratory system supplies our body with oxygen. Air that enters the nose and moves down the trachea and into large bronchial tubes that are connected to each lobe, of the lungs. The tubes branch into many smaller tubes that end in many tiny passageways called “alveoli”. In these teeny spaces, oxygen gas enters the bloodstream and carbon dioxide gas is removed. This carbon dioxide gas is sent back up the trachea and breathed out through the nose.

oxygen works in every cell of our body. Each and every cell in the body needs oxygen so they can reproduce, move, build and turn food into energy.

Normally we take about 20 breaths each minute. When we breathe air, it goes in through your nose and mouth and into your lungs. You're able to pull in the air by flexing your diaphragm, and when you exhale it relaxes to push the air back out. Our lungs expand as we breathe in, then contract as we breathe out.

Digestive system of Human body.

Digestive system starts from mouth to anus. different parts of the system are Oral Cavity, Esophagus, Stomatch, Large instestine, Small intestine, Rectum etc. When we enter some food in our mouth, our teeth help to cut and grind that food. This food is thrown in pharynx and then travel through Esophagus and reaches to Esophageal Sphincter and finally this food reaches in Stomach. Crossing Duodenum this food reaches in intestine. The colon absorbs H2o, produces vitamins, produces mucous and forms & exples feces. liver and pancreas also helps in digestive system. Finally the wastage goes outside thorugh rectum.

Human Body Anatomy (Male)

Human body consists of many systems. All these systems work automatically to perform their duties. Digestive system starts his function when we eat or drink something. Circulatory system circulate blood in our body, Respiratory system, Reproductive system, Urinary system perform their functions continuesly. 

SEXUAL PROBLEMS. (MALE/FEMALE)

SEXUAL PROBLEMS.

When you and your partner are in sexual contact and provides some dissatisfaction is called Sexual problems. Modern research shows that mostly 45% of females suffer with sexual problems and 32% of men face this problem. In this condition it is necessary to discuss with your doctor about this problem in order to overcome and to have a happy sexual life. The four different phases involved in sexual life are EXCITEMENT, PLATEAU, RESOLUTION and ORGASM.

The two most important causes which are responsible for sexual problems are “PHYSICAL” and “PSYCHOLOGICAL”. Heart problems, Diabetes, Neurological disorders, kidney diseases, chronic diseases, abused alcohol, and obesity are the physical causes responsible for sexual problems and Stress, Anxiety, Depression and Guilty are Psychological causes for sexual problems in human.  

MALE REPRODUCTIVE ORGANS.

In the diagram below you can see the male productive organs. 

The male reproductive system is consists of Seminal vesicle, Prostate gland, urethra, vas deferens, Testicle, Corpus spongiosum, corpus cavernosum.

Penis, the external part of men serves as a means of communication for removal of semen and urine. In normal condition, as the face of the penis scrotum, while sexually aroused when a lot of blood that is pumped into the erectile tissue is retained while the expenses of his blood. Thus, the pumping of penis filled with blood and turned into a verb big and strong. This condition is called an erection. Often erections may occur due to sexual stimulation and early morning due to testosterone.

Acorn contains many blood vessels and nerves. The skin covering the glans (head of the penis) is called the foreskin (prepuce). Some countries have used to clean the area around the foreskin, known as circumcision. Circumcision is recommended for cleaning the penis, Urethra (urinary), the channels to remove urine and semen.

Vas deferens (sperm duct), ie channels that deliver sperm from the testicles to the prostate glands. Vas deferens ± 4.5 cm long with a diameter of ± 2.5 mm.

The testicles (testes) are two parts (small balls) found lower side of penis. The testicles reproduce sperm every day with the help of testosterone. The testicles are descended into the scrotum, outside the pelvic cavity.  due to the growth of sperm requires a temperature below body temperature.

Scrotum is a sac of skin that protects the testes, dark and repeatedly. Scrotum is the dependence of the testicles. Scrotum contains smooth muscle that regulates the testes long distance in the abdominal wall with the intention to regulate the temperature of the testicles is relatively fixed.

Prostate gland is the gland that produces seminal fluid that affect fertility of sperm.

Seminal vesicles, its function is similar to the prostate. Prostate gland and seminal glands, including the male reproductive organs inside.

Bladder is a temporary shelter of  urine by the kidneys.