Archive for August 2016

Our Bodies - The Skeletal System

The human skeleton is the internal framework of the body. The human skeleton performs six major functions; support, movement, protection, production of blood cells, storage of minerals and endocrine regulation. This system supports the body. All the soft tissue hangs off the skeleton.

Diagram of a human female skeleton from https://commons.wikimedia.org/wiki/File:Human_skeleton_front_en.svg

Bones are hard and tough. some bones in the skeleton are there to protect delicate organs. The skull protects the brain and the ribs protect the heart and lungs. The bones are joined together by cartilage. Muscles are attached to the bones to move them.

Our Bodies - The Gland System

Glands are located throughout various parts of the human body. There are several glands around the body that produce and discharge a chemical called hormones. Hormones control things like growth and reproduction.

The major endocrine glands image from https://commons.wikimedia.org/wiki/File:Illu_endocrine_system_New.png

The major endocrine glands include the pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, salivary gland, sweat glands, mammary glands, hypothalamus, gastrointestinal tract and adrenal glands.

Our Bodies - The Nervous System

The nervous systems takes messages to the brain about what is happening to the body and takes messages from the brain to the muscles.

The Nervous System Image from https://commons.wikimedia.org/wiki/File:Nervous_system_diagram.png

The five senses of human body (five sense organs) are eyes, ears, nose, tongue and skin. They all contain nerves that send messages to the brain.

Five sense organs image from https://commons.wikimedia.org/wiki/File:Five_senses.jpg

The sensory organs for the five classical senses.
- Eyes (sight)
- Ears (hearing)
- Nose (smell)
- Tongue (taste)
- Skin (touch)
The nervous system is made up of the brain, the spinal cord and nervous that connect the brain and spinal cord to the rest of the body. The brain sends messages through the rest of the nervous system to tell your body what to do.

Our Bodies - The Reproductive System

The reproductive system is a system of sex organs for producing offspring.

Female Reproductive System Image from https://commons.wikimedia.org/wiki/File:Blausen_0399_FemaleReproSystem_01.png

Eggs are produced by the ovaries in a female. New life begins when a male sex cell (sperm) fertilizes a female egg (ovum) within the female reproductive system. The main male sex organs are the penis and the testicles which produce semen and sperm. The sperms are produced by the testes of a male.

Male Reproductive Image from https://upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Male_anatomy_en.svg/599px-Male_anatomy_en.svg.png

Many non-living substances such as fluids, hormones, and pheromones are also important accessories to the reproductive system.

Why do girls get periods? What goes on when a woman gets pregnant? What can go wrong with the female reproductive system? Find the answers to these ...