Which of the following bones serves to alter the direction of tendon pull?

Which of the following bones serves to alter the direction of tendon pull?

6 Review Questions B

Question Answer
bones act to alter the direction of tendon pull. Sesamoid
All of the following are stored in the matrix of bones except vitamin D.
A narrow slit-like opening in a bone is referred to as a spine
the following structures anchors the periosteum to the underlying bone perforating

Do sesamoid bones form within certain tendons?

Sesamoid bones form within certain tendons. This is false; long bones include all limb bones except the patella, tarsals and carpals. The main role of the appendicular skeleton involves locomotion; it also allows us to manipulate our environment.

What prevents twisting of a long bone?

Lamellar bone makes up the compact or cortical bone in the skeleton, such as the long bones of the legs and arms. In a cross-section, the fibers of lamellar bone can be seen to run in opposite directions in alternating layers, much like in plywood, assisting in the bone’s ability to resist torsion forces.

What substance in bone is responsible for its resistance to twisting and breaking?

Calcification occurs only in presence of collagen fibres – salts crystallize in the spaces between the fibres, then accumulate around them. Bone is resistant to bending, twisting, compression and stretch. It is hard, because it is calcified, and the collagen fibres help the bone to resist tensile stresses.

When cartilage is produced at the epiphyseal side?

The epiphyseal plate, the area of growth composed of four zones, is where cartilage is formed on the epiphyseal side while cartilage is ossified on the diaphyseal side, thereby lengthening the bone.

Which of the following stimulates osteoclast activity?

Parathyroid hormone stimulates osteoclast activity, meaning the answer is d).

What is the role of the sesamoid bone within the quadriceps tendon?

The patella is a sesamoid bone in the quadriceps tendon that acts as a pulley to increase the mechanical advantage of the quadriceps as it articulates with the trochlear groove of the femur.

What attaches to the sesamoid bone?

The most easily found sesamoid bone is the patella, or the kneecap. It is embedded within the patellar tendon that attaches the quadriceps to the tibia. The patella provides an extra mechanical advantage to the thigh, helping extend the knee the last 30 degrees.

Does cartilage have a flexible matrix that can accommodate mitosis of chondrocytes?

Cartilage has a flexible matrix that can accommodate mitosis of chondrocytes.

What are lamellae in bone?

Each osteon consists of concentric layers, or lamellae, of compact bone tissue that surround a central canal, the haversian canal. The haversian canal contains the bone’s blood supplies. Near the surface of the compact bone, the lamellae are arranged parallel to the surface; these are called circumferential lamellae.

Which of the following correctly states the difference between cartilage and bone?

Which of the following correctly states the difference between cartilage and bone? Cartilage is rubbery, and bone is firm.

What type of cartilage growth involves lacunae bound chondrocytes?

It is a specialized type of hyaline cartilage found at the ends of articulating bones. Slide 12 Epiglottis. Elastic cartilage (like hyaline cartilage) has chondrocytes located in lacunae and the tissue is surrounded by a perichondrium . Elastic fibers predominate in the ECM.