Question 1

The medullary cavity is
A) empty in adult bones.
B) the site where osteoblasts are found.
C) lined with endosteum.
D) filled with fibrocartilage and elastin fibers.
E) dead space in the bone.

Accepted Answer

The medullary cavity is lined with endosteum, a thin vascular membrane of connective tissue that lines the inner surface of the bony tissue that forms the medullary cavity of long bones.

Question 2

These collagen fibers help to connect ligaments and tendons to the periosteum of the bone.
A) Endosteal fibers
B) Sharpey fibers
C) Golgi fibers
D) Haversian fibers
E) Purkinje fibers

Accepted Answer

Sharpey fibers are the collagen fibers that help to connect ligaments and tendons to the periosteum of the bone, providing structural stability.

Question 3

An example of a long bone would be ________.
A) the sternum
B) a rib
C) a carpal bone
D) the tibia
E) the clavicle

Accepted Answer

The tibia is classified as a long bone because it is longer than it is wide and has a shaft and two ends, which are characteristic features of long bones.

Question 4

What strengthens the attachment of the tendons or ligaments to bone?
A) Epiphysis
B) Sharpey fibers
C) Growth plate
D) Medullary cavity
E) Endosteum

Accepted Answer

Sharpey's fibers are strong connective tissue fibers that penetrate into the bone, anchoring the periosteum (the outer layer of the bone) to the bone itself. This mechanism is crucial for the strong attachment of tendons and ligaments to the bone, allowing for efficient transfer of muscular forces to the skeleton.

Question 5

What is the membrane that lines the medullary cavity?
A) Epiphysis
B) Fibers
C) Growth plate
D) Medullary cavity
E) Endosteum

Accepted Answer

The endosteum is the membrane that lines the medullary cavity of bones, where it is involved in bone growth, repair, and remodeling.

Question 6

The spaces between developing skull bones that have not ossified are called ________.
A) epiphyseal plates
B) articular cartilages
C) fontanels
D) bone collars
E) medullary cavities

Accepted Answer

Fontanels are the soft spots on a baby's skull where the bones have not yet fused together. These gaps allow for the skull to be flexible during birth and for brain growth during early development.

Question 7

Which of the following events occurs last in intramembranous ossification?
A) Osteoprogenitor cells become osteoblasts.
B) A membrane of delicate collagen fibers develops.
C) Spongy bone is formed.
D) Periosteum is formed.
E) Many tiny trabeculae of woven bone develop.

Accepted Answer

The answer of Which of the following events occurs last...

Question 8

The locations where ossification begin in intramembranous ossification are known as
A) secondary ossification centers.
B) membranous ossification centers.
C) centers of ossification.
D) medullary cavity ossification centers.
E) epiphyseal ossification centers.

Accepted Answer

Centers of ossification are the locations where bone tissue begins to form in the process of intramembranous ossification, which occurs directly within mesenchymal or fibrous connective tissue.

Question 9

An x-ray determines that Peter fractured the shaft of his humerus. The break is in the ________ of the bone.
A) epiphysis
B) epiphyseal line
C) diaphysis
D) growth plate
E) articular surface

Accepted Answer

The shaft of a long bone, such as the humerus, is referred to as the diaphysis. This is the main, long section of the bone, distinguishing it from the ends (epiphyses) and other specific regions.

Question 10

What is the site of longitudinal growth in long bones?
A) Epiphysis
B) Sharpey's fibers
C) Epiphyseal plate
D) Medullary cavity
E) Endosteum

Accepted Answer

The epiphyseal plate, also known as the growth plate, is the site of longitudinal growth in long bones. It is a layer of hyaline cartilage where ossification occurs, allowing the bone to lengthen until early adulthood.

Question 11

What is the end of a long bone?
A) Epiphysis
B) Sharpey's fibers
C) Growth plate
D) Medullary cavity
E) Endosteum

Accepted Answer

The end of a long bone is called the epiphysis, which is made up of spongy bone covered by a thin layer of compact bone.

Question 12

Which type of tissue covers the ends of long bones?
A) Articular cartilage
B) Periosteum
C) Elastic cartilage
D) Spongy bone
E) Fibrocartilage

Accepted Answer

Articular cartilage covers the ends of long bones, providing a smooth, lubricated surface for articulation and facilitating the transmission of loads with a low frictional coefficient.

Question 13

Intramembranous ossification
A) forms the bones of the roof of the skull.
B) is the process that produces most of the skeletal system.
C) occurs when bones develop from cartilage models.
D) occurs when osteoblasts invade the spaces left by dying cartilage cells.
E) occurs on the outer surface of the membrane.

Accepted Answer

Intramembranous ossification is the process by which flat bones, such as those of the skull, are formed directly from mesenchymal tissue without a cartilage model.

Question 14

The processes of intramembranous and endochondral ossification are similar in several respects. Which of the following statements applies to both intramembranous ossification and endochondral ossification?
A) Both processes form woven bone.
B) Both processes require a precursor of connective tissue membranes.
C) In both processes, bone replaces cartilage.
D) Both only form flat bones.
E) Chondrocytes participate in both processes.

Accepted Answer

Both intramembranous and endochondral ossification initially form woven bone, which is later remodeled into lamellar bone.

Question 15

Some marrow of long bones is termed "red" marrow. The function of red marrow is to
A) manufacture blood cells.
B) manufacture tissue cells for the skin.
C) store adipose tissue.
D) store bone-forming cells.
E) make vitamin D.

Accepted Answer

Red marrow is responsible for the production of blood cells, including red blood cells, white blood cells, and platelets.

Question 16

Which of the following membranes covers the surface of a mature bone?
A) Perimysium
B) Perichondrium
C) Peritendineum
D) Peritoneum
E) Periosteum

Accepted Answer

The periosteum covers the surface of a mature bone. It is a dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints.

Question 17

What is the area where marrow is located?
A) Periosteum
B) Sharpey fibers
C) Growth plate
D) Medullary cavity
E) Endosteum

Accepted Answer

The medullary cavity is the central cavity of bone shafts where red and/or yellow bone marrow is stored.

Question 18

The flat bones of the skull develop from ________.
A) hyaline cartilage
B) areolar tissue
C) compact bone
D) fibrous connective tissue
E) fibrocartilage

Accepted Answer

The flat bones of the skull develop from fibrous connective tissue through a process called intramembranous ossification.

Question 19

Some flat and irregular bones of the skull have air-filled spaces called ________.
A) epiphyseal spaces
B) medullary cavities
C) lacunae
D) sinuses
E) trabeculae

Accepted Answer

Sinuses are air-filled spaces found in some flat and irregular bones of the skull, such as the frontal, maxillary, ethmoid, and sphenoid bones. These spaces help to reduce the weight of the skull and improve voice resonance.

Question 20

Some marrow of long bones is termed "yellow" marrow under normal conditions. The function of yellow marrow is to
A) manufacture blood cells.
B) manufacture tissue cells for the skin.
C) store adipose tissue.
D) store bone-forming cells.
E) make vitamin D.

Accepted Answer

Yellow marrow primarily stores adipose tissue (fat), which serves as an energy reserve. Unlike red marrow, it does not significantly contribute to the production of blood cells.

Quiz 6: Skeletal System: Bones and Bone Tissue

The medullary cavity is

These collagen fibers help to connect ligaments and tendons to the periosteum of the bone.

An example of a long bone would be ________.

What strengthens the attachment of the tendons or ligaments to bone?

What is the membrane that lines the medullary cavity?

The spaces between developing skull bones that have not ossified are called ________.

Which of the following events occurs last in intramembranous ossification?

The locations where ossification begin in intramembranous ossification are known as

An x-ray determines that Peter fractured the shaft of his humerus. The break is in the ________ of the bone.

What is the site of longitudinal growth in long bones?

What is the end of a long bone?

Which type of tissue covers the ends of long bones?

Intramembranous ossification

The processes of intramembranous and endochondral ossification are similar in several respects. Which of the following statements applies to both intramembranous ossification and endochondral ossification?

Some marrow of long bones is termed "red" marrow. The function of red marrow is to

Which of the following membranes covers the surface of a mature bone?

What is the area where marrow is located?

The flat bones of the skull develop from ________.

Some flat and irregular bones of the skull have air-filled spaces called ________.

Some marrow of long bones is termed "yellow" marrow under normal conditions. The function of yellow marrow is to