SKELETAL SYSTEM OF HUMAN

SKELETAL SYSTEM OF HUMAN

The skeletal system includes all of the bones and joints in the body.

The ADULT has 206 bones

the Children has 300 bones

SKULL

SKULL BONES PROTECT THE BRAIN AND FORM AN ENTRANCE TO THE BODY

The skull consists of the cranial bones and the facial skeleton.

The cranial bones compose the top and back of the skull and enclose the brain.

The facial skeleton, as its name suggests, makes up the face of the skull.

THE BONES OF THE SHOULDER GIRDLE

The pectoral or shoulder girdle consists of the scapulae and clavicles.

The shoulder girdle connects the bones of the upper limbs to the axial skeleton.

These bones also provide attachment for muscles that move the shoulders and upper limbs.

THE BONES OF THE THORACIC CAGE PROTECT INTERNAL ORGANS

Ww also call the thoraic cage as a RIBCAGE

The ribcage , formed by the ribs and sternum, protects internal organs and gives attachment to muscles involved in respiration and upper limb movement.

HAND BONES

The hand includes:

 8 bones in the wrist

 5 bones that form the palm

 14 bones that form the fingers and thumb.

The wrist bones are called carpals.

The bones that form the palm of the hand are called metacarpals.

The phalanges are the bones of the fingers.

Commonly referred to as the spine, the vertebral column extends from the base of the skull to the pelvis.  

Spine function The spine consists of 33 ring-like bones called vertebrae.

With the S shape, it acts like a spring and can flex when we are young and jump off of something. If it was straight up and down, it could break easily.

THE BONES OF THE PELVIS

The pelvic girdle is a ring of bones attached to the vertebral column that connects the bones of the lower limbs to the axial skeleton.

The pelvic girdle consists of the right and left hip bones.

Each hip bone is a large, flattened, and irregularly shaped fusion of three bones: Ilium Ischium Pubis

The femur is the only bone of the thigh. It is the biggest bone in the body !!

It articulates with the two bones of the leg–the larger tibia (commonly known as the shin) and smaller fibula.

The thigh and leg bones articulate at the knee joint that is protected and enhanced by the patella bone that supports the quadriceps tendon. 

FOOT BONES.

The bones of the foot consist of:  tarsal bones of the ankle  phalanges that form the toes,  metatarsals that give the foot its arch.