The Amazing Functions of Bones: A Deep Dive into Bone Tissue

The video explores the essential functions of bones, focusing on the internal structure of human bone tissue. It introduces two skeletons, Jeffrey and Cornelius, and uses them to explain the differences between compact and spongy bone. The video highlights the roles of the medullary cavity, yellow bone marrow, and red bone marrow in bone function and health. It emphasizes the importance of red bone marrow in producing blood cells and the adaptability of trabeculae in response to stress.

What is one of the unseen functions of bones mentioned in the introduction?

• Producing blood cells

• Providing energy

• Producing hormones

• Supporting muscles

What is the outer surface of a bone called?

• Periosteum

• Medullary cavity

• Compact bone

• Spongy bone

Where is the compact bone the thinnest?

• In the periosteum

• In the medullary cavity

• At the epiphysis

• At the diaphysis

What is the primary function of the medullary cavity?

• To reduce bone weight

• To store red bone marrow

• To protect the periosteum

• To produce blood cells

What type of tissue is yellow bone marrow?

• Muscle tissue

• Adipose tissue

• Connective tissue

• Nervous tissue

What are the small beams in spongy bone called?

• Canaliculi

• Osteons

• Trabeculae

• Lamellae

Which type of bone marrow is responsible for blood cell production?

• Periosteum

• Compact bone

• Red bone marrow

• Yellow bone marrow

What is the primary function of erythrocytes?

• To store fat

• To carry oxygen

• To fight infections

• To form clots

Where is red bone marrow primarily found in adults?

• In the medullary cavity

• In the sternum and hip bones

• In the epiphysis of all bones

• In the diaphysis of long bones

What is a common misconception about bone tissue?

• That it is dead

• That it is alive

• That it is hollow

• That it is flexible