antomy test
Which of these are bone - forming cells?
Osteoblasts
Covering of bone(except at joints), fibrous outer layer, cellular inner layer
Periosteum
The membrane that surrounds the outer surface of living bone and provides a means of attachment for ligaments and tendons is called
Periosteum
What is the name for the covering of bone(except at joints), fibrous outer layer, cellular inner layer
Periosteum
Red bone marrow is found within.
Spongy Bone
The epiphyses contain ____ tissue, where blood formation occurs.
Spongy Bone
In adults, the function of the yellow marrow is to:
Store adipose tissue
In endochondral ossification, what happens to the chondrocytes?
They die in the calcified matrix that surrounds them and form the medullary cavity.
Bones grow in diameter due to bone formation ________.
beneath the periosteum
Bones grow in length due to activity in the ________.
epiphyseal plate
Basic functional unit of a compact bone
haversian system
Bones that surround the spinal cord are classified as ________ bones.
irregular
Which of the following are found in compact bone and cancellous bone?
lamellae
Type of bone that is has greater length then width is known as:
long
The fibrous membrane covering the outer surface of the bone is the ________.
periosteum
Which function of the skeletal system would be especially important if you were in a car accident?
protection of internal organs
Most of the bones of the arms and hands are long bones; however, the bones in the wrist are categorized as ________.
short
Type of bone that is about equal in length and width is known as:
short
Which system includes the bones of the skeleton, cartilage, ligaments, and other connective tissues that stabilize or connect the bones?
skeletal
Trabecular arrangements are found in
spongy
Sesamoid bones are found embedded in ________.
tendons
Which of the following bones is (are) formed by intramembranous ossification?
the flat bones of the cranium
Which of the following are only found in cancellous bone?
trabeculae
Hematopoiesis, RBC's, WBC's, & other elements produced in red marrow
. Blood cell production:
Hyaline cartilage of the epiphysis in the joint cavity is called:
Articular Cartilage
Narrow passageways between lacunae and nearby blood vessels; Forms a branching network for exchange of nutrients, waste products, and gases
Canaliculi
The bone cells within lacunae receive nourishment from blood vessels through passageways called?
Canaliculi
This type of osseous tissue is an open network of cells and is found in the interior of bone.
Cancellous
Circular canal in the center of an osteon (haversian system) that runs longitudinally through the bone; the canal contains blood vessels, lymphatic vessels, and nerves is a
Central (haversian) canal
Lamellae produced during the growth of the bone?
Circumferential lamellae
Haversian Systems are found in
Compact Bone
Which of these destroy bone so it can be rebuilt again?
Costeoclasts
The central shaft portion of a long bone is called
Diaphysis
Ossification where bone replaces existing cartilage
Endochondral Ossification
The extreme end of a long bone is called
Epiphysis
Which of the following bone categories is composed of 2 layers of compact bone sandwiching a layer of spongy bone between them?
Flat Bone
Another name for osteon
Haversian
What kind of tissue is the forerunner of long bones in the embryo?
Hyaline cartilage
What fills the spaces between the osteons
Interstitial lamellae
Step 1: Osteoblasts form and become activeStep 2: Osteoblasts deposit bony matrix around themselves creating Osteocytes Step 3: Remodeling produces spongy & compact bone
Intramembranous Ossification
Small spaces between lamellae which contain osteocytes are:
Lacunae
The small cavities in bone tissue where osteocytes are found are called?
Lacunae
Concentric layers of matrix is called
Lamellae
Yellow bone marrow occupies the space in the center of the shaft of a living bone. This space is known as
Medullary Cavity
What is the term called that is the narrow zone that connects the diaphysis and epiphysis
Metaphysis
Mature bone cells located within a lacuna are
Osteocyte
Microscopic structural units of compact bone made up of a central (haversian) canal plus it's surrounding lamellae, lacunae, canaliculi, an osteocytes are:
Osteon (haversian system)
Holds blood vessels and nerves
Osteonic Canals
Compact bone tissue is arranged in microscopic units called ________ or haversian systems.
Osteons
Canals that extend from the periosteum and contain blood vessels, lymphatic vessels, and nerves; they extend into the central (haversian) canals, medullary cavity, and periosteum are:
Perforating (Volkmann's) canals
An irregular latticework of thin columns of bone that are microscopic units of spongy bone tissue:
Trabeculae
What is the term for struts and plates of the cancellous matrix that will branch, creating an open network
Trabeculae
All of the following are functions of the skeletal system EXCEPT
Transport of nutrients throughout body
Perforating canals that extend perpendicular to the surface; filled with blood vessels
Volkman's Canael
Yellow marrow has been identified as ________.
an area of fat storage
This type of osseous tissue have tightly packed cell and occurs on the surface of bone
compact
Osteons are characteristic of:
compact bone
The diaphysis contains
compact bone
Bone tissue can be described as ________.
dense, hard connective tissue
Without red marrow, bones would not be able to ________.
make blood cells