1.1.6: Break a Leg

Last updated 24 days ago

14 questions

1.1.6: Break a Leg

Last updated 24 days ago

14 questions

Specialized cells called _______  deposit bone tissue, and cells called _______  resorb bone tissue.

If bone tissue is built too quickly, it can become weak and easily fractured. This is due to an increase in _______ activity.

In certain metabolic diseases such as osteoporosis, increased _______  activity causes increased bone resorption. This leads to weaker bones that are at risk for spontaneous fracture.

Put the stages of bone remodeling in the correct order

Blood vessels that are ruptured during the break swell to form a mass called a hematoma. This mass forms between the broken bones. This clotting reduces the blood supply to many of the cells in the area of injury, and as a result, these cells die.
The fibrocartilage callus is gradually replaced by one made of spongy bone. This new mass is referred to as the bony callus. Osteoclasts and osteoblasts move to the area and multiply.
Over the weeks and months to come, the callus is remodeled with the help of osteoclasts and osteoblasts. The shape of the bones will gradually return to normal, and there will eventually be little evidence of the fracture.
New capillaries begin to form into the clotted blood in the damaged area. Connective tissues cells form a mass of repair tissue called a fibrocartilage callus. This callus contains some cartilage, some bone, and collagen fibers. The combined mass closes the gap between the broken bones.

Match the description to the type of fracture repair

can be used on the proximal or distal end of a bone
requires a small incision
higher rate of infection
can only be used on a few types of fractures
requires a large incision
can only be used on the shaft or midel
can be used on all types of fractures
lower rate of infection

Plating
Nailing

Nailing would be the best choice of repair due to only needing small incisions and the fracture being located on the shaft of the bone.

do not use radiation and can provide detail of very fine soft tissue; create images of the body using a large magnet and radio waves
create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs; one of the few diagnostic imaging techniques that capture motion.
provide a two-dimensional image of the interior of the body; often used to provide images of the chest or broken bones

X-Ray
Magnetic Resonance Imaging (MRI)
Ultrasound

Draggable item		Corresponding Item
femoral neck		B
shaft		C
Intra-articular		E
trochanteric region		G
condyles		D
femoral head		F

Draggable item		Corresponding Item
femoral neck		B
shaft		C
Intra-articular		E
trochanteric region		G
condyles		D
femoral head		F

1.1.6: Break a Leg

1.1.6: Break a Leg

Put the stages of bone remodeling in the correct order

Match the description to the type of fracture repair

Nailing would be the best choice of repair due to only needing small incisions and the fracture being located on the shaft of the bone.

Type of force that causes this type of fracture

Type of force that causes this type of fracture

Type of force that causes this type of fracture

Type of fracture shown here

Type of fracture shown here

Type of fracture shown here

Match the structure with the correct letter

Put the stages of bone remodeling in the correct order

Match the description to the type of fracture repair

Nailing would be the best choice of repair due to only needing small incisions and the fracture being located on the shaft of the bone.

Type of force that causes this type of fracture

Type of force that causes this type of fracture

Type of force that causes this type of fracture

Type of fracture shown here

Type of fracture shown here

Type of fracture shown here

Match the structure with the correct letter