The Essential Functions and Structure of the Human Skeleton

The video provides an overview of the human skeletal system, highlighting its two main sections: the axial and appendicular skeletons. The axial skeleton includes the skull, spinal column, ribs, and sternum, which protect vital organs and support the body. The appendicular skeleton consists of the shoulder girdle, arm bones, pelvic girdle, and leg bones, facilitating movement. The video also explains the structure of long bones and the types of joints, emphasizing their roles in mobility and support. Viewers are encouraged to explore further resources for a more detailed study.

What is one of the primary functions of the skeleton?

• To regulate body temperature

• To digest food

• To protect vital organs

• To produce hormones

Which part of the axial skeleton is responsible for protecting the spinal cord?

• Sternum

• Skull

• Spinal column

• Ribs

How many pairs of ribs are classified as 'true ribs'?

• 2 pairs

• 5 pairs

• 7 pairs

• 12 pairs

What bones form the shoulder girdle?

• Femur and tibia

• Clavicles and scapulas

• Radius and ulna

• Metacarpals and phalanges

Which bone is known as the shin bone?

• Fibula

• Humerus

• Femur

• Tibia

What is the function of the medullary canal in long bones?

• To protect the brain

• To produce red blood cells

• To connect muscles

• To store yellow marrow

What is the tough membrane covering the outside of a long bone called?

• Diaphysis

• Periosteum

• Endosteum

• Epiphysis

Which type of joint is freely movable?

• Diarthrosis

• Cartilaginous

• Amphiarthrosis

• Synarthrosis

What is an example of an immovable joint?

• Hip joint

• Elbow joint

• Knee joint

• Sutures of the cranium

What structures are important for supporting joints?

• Muscles and tendons

• Ligaments and cartilage

• Nerves and blood vessels

• Skin and fat