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HOME :: HUMAN BEING :: ANATOMY

Human being

Living being representing the most evolved species on Earth, characterized especially by upright stance, spoken language and a large brain.
anatomy

ANATOMY

Science that studies the structure of the human body, as well as the relationships between the various organs within it.

muscles

muscles

Contractile organs made of fibers allowing the body to move and maintain its posture; the human body has over 600 muscles.

anterior view posterior view
anterior view posterior view
skeleton

skeleton

All the articulated bones (about 200), of varying sizes and shapes, forming the frame of the body, supporting the muscles and protecting the vital organs.

anterior view posterior view hand
anterior view posterior view hand
foot structure of a long bone parts of a long bone
foot structure of a long bone parts of a long bone
types of synovial joints [1] types of synovial joints [2] spinal column
types of synovial joints [1] types of synovial joints [2] spinal column
types of bones lateral view of skull child’s skull
types of bones lateral view of skull child’s skull
teeth

teeth

Hard organs implanted in maxillae and used for masticating food; a child usually has 20 and an adult 32 (16 per jaw).

human denture cross section of a molar [1] cross section of a molar [2]
human denture cross section of a molar [1] cross section of a molar [2]
blood circulation

blood circulation

Propelled by the contractions of the heart, blood travels through the blood vessels of the body bringing oxygen and nutrients and removing waste.

principal veins and arteries schema of circulation heart
principal veins and arteries schema of circulation heart
composition of the blood
composition of the blood
respiratory system

respiratory system

It causes gaseous exchanges to take place in the lungs by ensuring that oxygen is carried to the blood through inspiration, and carbon dioxide is eliminated from the blood through expiration.

respiratory system lungs
respiratory system lungs
digestive system

digestive system

Formed of the mouth, digestive tract and appended glands, it converts ingested food so that it can be assimilated by the organism.

urinary system

urinary system

Eliminates the organism’s waste through secretion and evacuation of urine; it also regulates the quantity of water and salt in the body.

nervous system

nervous system

It directs the movements of the organs and muscles and receives and interprets sensory messages coming from the body.

peripheral nervous system central nervous system [1] central nervous system [2]
peripheral nervous system central nervous system [1] central nervous system [2]
structure of the spinal cord lumbar vertebra chain of neurons
structure of the spinal cord lumbar vertebra chain of neurons
sensory impulse
sensory impulse
male reproductive organs

male reproductive organs

The male genitalia ensure reproduction; they produce spermatozoa and eject them into the female genital tract during copulation.

sagittal section spermatozoon
sagittal section spermatozoon
female reproductive organs

female reproductive organs

Mainly internal, they enable fertilization of the egg by the spermatozoon and the development of the embryo and fetus.

sagittal section egg posterior view
sagittal section egg posterior view
breast

breast

Female milk-secreting glandular organ; it develops at puberty and increases in size during pregnancy.




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