Basic Animal Bone

The skeletal system is composed of what?

• Bones, ligaments and joints.

• Bones, cartilage and joints.

• Blood vessels, lymphatic vessels and arteries.

• Tissues, muscles and ligaments.

The bones of the skeleton can be classified according to their SHAPE... which of these describes the function of LONG BONES?

• Their function is to reduce friction and wear on the tendon by altering the angle at which it passes over a joint.

• They consist of an outer layer of compact bone, with a cancellous core. The bones consist mainly in the skull, ribs and scapula.

• Their main function is to act as levers during locomotion as they have a cylindrical shaft made of compact bone and full of marrow.

• To make the animal taller.

Which of these are functions of the skeletal system are correct? (3)

• storage of calcium and phosphates

• formation of lymph

• storage of fat

• formation of red blood cells in the marrow (typically in long bones)

What is the main mineral in bone?

• Calcium

• Calcium Oxide

• Calcium Hydroxide

• Calcium Hydroxyapatite

There are three main types of cells found in bone; osteoblasts, osteocytes and osteoclasts. Which of these descriptions match to OSTEOBLASTS?

• mature cells which maintain bone structure, they lie within the substance they have created; being mineralized bone.

• cells which can break down and remodel bone by reabsorbing the bone minerals.

• immature cells which can synthesize the mineralization of bone during bone formation and healing breakages by secreting the substance bone is made of.

Tags

NGSS.MS-LS1-2

Which of these descriptions matches to OSTEOCYTES?

• mature cells which maintain bone structure, basically they are osteoblasts that lie within the substance they created' being mineralized bone.

• cells which can break down and remodel bone by by reabsorbing the bone minerals.

• immature cells which can synthesize the mineralization of bone during bone formation and healing breakages by secreting the substance bone is made of.

Which of these descriptions match to OSTEOCLASTS?

• cells which can break down and remodel bone by reabsorbing the bone minerals.

• immature cells which can synthesize the mineralization of bone during bone formation and healing breakages by secreting the substance bone is made of.

• mature cells which maintain bone structure, basically they are osteoblasts that lie within the substance they created; being mineralized bone.

Tags

NGSS.MS-LS1-3

Which type of bone tissue is found in areas that are prone to stress i.e. long bones like the femur?

• cancellous bone

• irregular bones

• spongey bone

• compact bone

Where is cancellous bone/spongey bone most commonly found? (multiple answer question)

• Vertebrae

• Flat bones

• In the middle of long bones

• At the end of long bones

Cancellous bone (spongey bone) comprises of microscopic connective tissue in the form of 'branches' with spaces inbetween, hence where the term spongey comes from. Name these branch structures.

• Microvilli

• Lamellae

• Trabeculae