Question 1

Match the stages of wound healing of a bone with the description of each. Stages may be used more than once.
-Osteoblasts form membranous or woven bone.Enzymes increase the phosphate content and permit the phosphate to join with calcium to be deposited.
A)Callus replacement
B)Hematoma formation
C)Remodeling
D)Procallus formation
E)Callus formation

Accepted Answer

Callus formation involves the formation of a soft callus composed of fibroblasts, chondroblasts, and osteoblasts. Osteoblasts form membranous or woven bone, which is then calcified.

Answer: A
 Callus replacement involves the replacement of the soft callus with hard callus, which is composed of trabecular bone. Enzymes increase the phosphate content and permit the phosphate to join with calcium to be deposited, resulting in the calcification of the hard callus.

Note: The other stages (B, C, D) are not applicable to bone wound healing. Hematoma formation occurs in soft tissue wounds, and procallus formation refers specifically to cartilage healing. Remodeling may occur in bone healing, but it is a continuous process that can occur over several years and is not considered a distinct stage of healing.

Question 2

A functional muscle contraction in which the muscle contracts but the limb does not move is referred to as being:
A)isotonic.
B)isometric.
C)eccentric.
D)concentric.

Accepted Answer

During isometric contraction (static or holding contraction), the muscle maintains a constant length as tension is increased. Isometric contraction occurs, for example, when the arm or leg is pushed against an immovable object. The muscle contracts, but the limb does not move.

Question 3

In _____ contractions, the muscle maintains a constant tension as it moves.
A)isotonic
B)isometric
C)hypertonic
D)hypotonic

Accepted Answer

During isotonic contraction, the muscle maintains a constant tension as it moves. Isotonic contractions can be lengthening or shortening.

Question 4

Match the stages of wound healing of a bone with the description of each. Stages may be used more than once.
-Osteoblasts continue to restore callus with lamellar bone or trabecular bone.
A)Callus replacement
B)Hematoma formation
C)Remodeling
D)Procallus formation
E)Callus formation

Accepted Answer

The answer of Match the stages of wound healing of...

Question 5

Which statement is false about aging and the musculoskeletal system?
A)Haversian systems erode, canals nearest the marrow cavity become widened, and the endosteal cortex converts to spongy bone.
B)The remodeling cycle increases because of a decreased ability of the basic multicellular units to resorb and deposit bone.
C)Cartilaginous rigidity increases because of decreasing water content and increasing concentrations of glycosaminoglycans.
D)Muscle RNA synthesis declines, although the regenerative function of muscle tissue is reportedly normal in older adults.

Accepted Answer

Aging does not typically have an effect on the haversian system as described.

Question 6

Match the stages of wound healing of a bone with the description of each. Stages may be used more than once.
-Periosteal and endosteal surfaces of the bone are formed to the size and shape of the bone before the injury.
A)Callus replacement
B)Hematoma formation
C)Remodeling
D)Procallus formation
E)Callus formation

Accepted Answer

The remodeling stage involves the reshaping of the bone to its original size and shape, restoring the periosteal and endosteal surfaces.

Question 7

Match the stages of wound healing of a bone with the description of each. Stages may be used more than once.
-Fibrin and platelets form a meshwork within the initial framework for healing.
A)Callus replacement
B)Hematoma formation
C)Remodeling
D)Procallus formation
E)Callus formation

Accepted Answer

Hematoma formation is the initial stage of bone healing, where a blood clot forms at the site of injury.

Answer: D
 Procallus formation occurs in the second stage of bone healing, where cartilaginous tissue forms around the bone ends at the site of injury.

Answer: E
 Callus formation occurs in the third stage of bone healing, where bony callus forms and is replaced by new bone tissue.

Answer: A
 Callus replacement is the fourth stage of bone healing, where the bony callus is remodeled and reshaped into its original form.

Answer: C
 Remodeling is the final stage of bone healing, where the bone tissue is reshaped and strengthened to its normal function.

Question 8

Match the stages of wound healing of a bone with the description of each. Stages may be used more than once.
-Fibroblasts, capillary buds, and osteoblasts move into the wound to produce granulation tissue.
A)Callus replacement
B)Hematoma formation
C)Remodeling
D)Procallus formation
E)Callus formation

Accepted Answer

The answer of Match the stages of wound healing of...

Quiz 41: Structure and Function of the Musculoskeletal System

Match the stages of wound healing of a bone with the description of each. Stages may be used more than once. -Osteoblasts form membranous or woven bone.Enzymes increase the phosphate content and permit the phosphate to join with calcium to be deposited.

A functional muscle contraction in which the muscle contracts but the limb does not move is referred to as being:

In _____ contractions, the muscle maintains a constant tension as it moves.

Match the stages of wound healing of a bone with the description of each. Stages may be used more than once. -Osteoblasts continue to restore callus with lamellar bone or trabecular bone.

Which statement is false about aging and the musculoskeletal system?

Match the stages of wound healing of a bone with the description of each. Stages may be used more than once. -Periosteal and endosteal surfaces of the bone are formed to the size and shape of the bone before the injury.

Match the stages of wound healing of a bone with the description of each. Stages may be used more than once. -Fibrin and platelets form a meshwork within the initial framework for healing.

Match the stages of wound healing of a bone with the description of each. Stages may be used more than once. -Fibroblasts, capillary buds, and osteoblasts move into the wound to produce granulation tissue.