Anatomy of human body 2

ok i'll countinue my post about anatomy of human body..now i'll explain about circulation.

i'll begin with general circulation of human body..

our circulatory system consists of your heart and blood vessels. Together, these provide a continuous flow of blood to your body, supplying the tissues with oxygen and nutrients. Arteries carry blood away from the heart; veins return blood to the heart. 

this the diagram:

this ficture draw about our circulation general ,

next i get about arteries and veins..

 arteries carry blood away from the heart. Oxygenated blood is pumped out of the heart through the body's main artery — the aorta. Arteries that branch off the aorta transport blood throughout the body, supplying tissues with oxygen and nutrients. 

veins carry blood back toward the heart. Tiny vessels called capillaries in organs and tissues of the body deliver deoxygenated blood into small veins called venules, which join to form veins. Blood flows through the veins to the body's two main veins (called the vena cavae), which deliver the blood back into the heart. 

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Anatomy of human body Part !

in this post i'll give you basic  anatomy of human body step by step..
1. Torso

    Your torso consists of two parts — the chest and the abdomen. The chest contains your heart and lungs; your abdomen contains the digestive and urinary systems. Your chest and abdomen are separated by a dome-shaped sheet of muscle called the diaphragm.
2.Brain.

cerebrum

Your brain has three main components - the cerebrum (which consists of the left and right cerebral hemispheres), the cerebellum, and the brain stem. The cerebral hemispheres of the brain make up the largest part of your brain. The cerebellum is the structure located behind the brain stem,  and the brain stem is the lowest section of the brain and is connected to the spinal cord. 

cerebellum

The cerebrum (the portion of your brain that performs motor and sensory functions and a variety of mental activities) is divided into four lobes - the frontal, temporal, parietal and occipital lobes. Some of these lobes are separated by deep grooves called fissures.

brain from side

The central structures of the brain are the thalamus, hypothalamus, and pituitary gland. The thalamus relays sensory information to the cerebrum; the hypothalamus helps regulate body functions such as thirst and appetite, as well as sleep, aggression, and sexual behavior; and the pituitary gland produces hormones that play a role in growth, development, and various other physiological variables. The pons, medulla, and midbrain are the three structures that compose the brain stem. The ventricles are natural cavities inside the brain filled with cerebrospinal fluid. 

to be continoued..to part 2

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