Chapter 6 REVIEW Flashcards
Which cells participate in the process of Bone Deposition?
OSTEOBLASTS
In bones that have ceased to grow in length, the only cartilage that remains is the ?
ARTICULAR CARTILAGE
All of the following components are associated with the Organic Matrix EXCEPT?
HYDROXYAPATITE
Bone Deposition is performed by ___, whereas Bone Resorption is performed by?
OSTEOBLASTS;OSTEOCLASTS
Bones that are roughly cubed-shaped are classified as___bones
SHORT
The Skull & Clavicle form through_______
INTRAMEMBRANEOUS OSSIFICATION
If the ____ is destroyed, bone would become flexible and unable to resist compression?
INORGANIC MATRIX
The Innermost surface of bone has a lining known as the ___
ENDOSTEUM
Damage to the _____ in a long bone of a young person might cause the bone not to lengthen properly ?
EPIPHYSEAL PLATE
Spongy bone differs from compact bone because spongy bone?
IS COMPOSED OF TRABECULAE THAT ARE ORIENTED ALONG LINES OF STRESS
Blood cells are made in the red bone marrow of bones, a process known as?
HEMATOPOIESIS
Severe anemia may trigger Ana adaptive conversion of _____
YELLOW MARROW TO RED MARROW
_____ allows for the passage of oxygen, nutrients, and small substances to and from Osteocytes trapped within Lacunae.
CANALCULI
____produce new bone tissue by secreting matrix
OSTEOBLASTS
The structural units of mature compact bone are called?
OSTEONS
What tissue serves as the model for bones formed during Endochondral Ossification?
HYALINE CARTILAGE
Osteoblasts become surrounded by the ECM and become trapped within a_____
LACUNA
Bone is considered an Important storage reservoir for_____
CALCIUM,PHOSPHATE, and LIPIDS
Which canals connect Lacunae together ?
CANALCULI
The main minerals bone stores are _____
CALCIUM & PHOSPHATE
Boners located within a tendon are classified as ____ bones.
SESAMOID
The main central shaft of a long bone is called the ____
DIAPHYSIS
What structure allows the Diaphysis of the bone to increase in length ?
EPIPHYSEAL PLATE
_____forms bone from within a model of Hyaline Cartilage
ENDOCHONDRAL OSSIFICATION
Whose Bone Marrow is mostly Red?
INFANTS
The Secondary Ossification center in a Long Bone is located at the ____
EPIPHYSIS
____ is the Internal layer of Spongy Bone in Flat Bones.
DIPLOE
Thin, Broad Bones are classified as___
FLAT BONES
_____ Is the process of Bone Formation.
OSSIFICATION
All the following events occur during Intramembraneous Ossification EXCEPT
ENLARGEMENT OF THE MEDULLARY CAVITY
Which of the following structures persists for life?
ARTICULAR CARTILAGE
Bones are constantly undergoing resorption for various reasons. Which of the following Cells accomplishes this process ?
OSTEOCLAST
The ____ is the enlarged, rounded end of a Long Bone
EPIPHYSIS
Bone cells that are surrounded by Bone Matrix and are located with Lacunae are____
OSTEOCYTES
When considering the classification of Bones, which Bones are used primarily for Movement rather than Protection?
LONG BONES
Bones perform all the following functions EXCEPT?
GENERATE IMPULSES
Correctly order the following Key Steps in the process of Endochondral Ossification
- 3,5,2,1,4*
3. Perichondrium is invaded by blood vessels
5. Perichondrium cells differentiate into Osteogenic Cells then into Osteoblasts
2. Osteoblasts build the Bone Collar on the External surface of the Bone
1. Chondrocytes die
4. In the Primary Ossification Center, Osteoblasts replace Calcified Cartilage with early Spongy Bone
Which type of cell forms the Medullary Cavity in a Fetal Bone and removes excess bone at a Fracture site?
OSTEOCLAST
The Canal that runs through the core of each Osteon is the site of _____
BLOOD VESSELS & NERVE FIBERS
The function of Yellow Bone Marrow is ____
TRIGLYCERIDE STORAGE
Spongy Bone is made up of a branching framework called____
TRABECULAE
Primary Ossification centers develop in Long Bones in the ____
DIAPHYSIS
____ run perpendicular to the Osteons.
PERFORATING CANALS
Which sequence is correct for the development of Mature Bone Cells?
OSTEOGENIC CELLS —> OSTEOBLASTS—>OSTEOCYTES
All of the following Bones are formed by Intramembraneous Ossification EXCEPT the ?
FEMUR
Bone Resorption requires the activity of ____
OSTEOCLASTS
Which Vitamin is important for the Synthesis of Collagen?
VITAMIN C
A patient shows up in the Emergency Department with the end of the Bone protruding through the Skin. What type of Fracture does he have?
COMPOUND FRACTURE
For a person who starts running for exercise, _____
BONE DEPOSITION EXCEEDS BONE RESORPTION
All of the following factors will affect Osteoblast & Osteoclast activity EXCEPT:
YELLOW BONE MARROW
If a break occurs in the Shaft of a Thigh Bone, what part of the Bone has been broken ?
DIAPHYSIS
Which of the following statements about Bone Remodeling is FALSE?
IT OCCURS ONLY AT THE ARTICULAR SURFACE
Bone Growth and Remodeling depends on adequate intake of ___
CALCIUM, VITAMIN C, and VITAMIN K
A Greenstick Fracture occurs primarily in _____
CHILDREN
When blood calcium levels rise above normal, Osteoclast activity is Inhibited by the hormone_____
CALCITONIN
Within the Epiphyseal Plate, which Zone houses actively dividing Cartilage Cells in their Lacunae?
ZONE OF PROLIFERATION
The thickness of Bones increase as an Individual grows into Adulthood by _____
APPOSITIONAL GROWTH
Which of the following factors promotes Bone Resorption?
PRESSURE
Appositional Growth produces______
GROWTH IN WIDTH
Bone lengthens by___growth and thickens by ___growth
LONGITUDINAL; APPOSITIONAL
When the Cartilage at the Epiphyseal Plate stops dividing, the bony structure that forms is known as the ____
EPIPHYSEAL LINE
A____Fracture results when the bone is shattered into multiple fragments
COMMINUTED
Which of the following sequences correctly lists the order of events that occur during Fracture Healing?
HEMATOMA FORMS->SOFT CALLUS FORMS->HARD CALLUS FORMS->REMODELING OCCURS
Increasing mechanical stress will cause Bone to become stronger by _____
INCREASING DEPOSITION OF MINERAL SALTS
How long does Bone Repair generally take?
6 WEEKS
Bone Remodeling involves all of the following factors EXCEPT?
INTRAMEMBRANEOUS & ENDOCHONDRAL OSSIFICATION
During Bone Repair, the Bony Callus may last up to ____
3-4 MONTHS
Out of the numerous factors that influence Bone Growth and Remodeling, ___ do (does) not.
THE AMOUNT OF FIBROCARTILAGE AVAILABLE
What type of Bone Growth do you think a 40-year old male experiences?
APPOSITIONAL GROWTH
What hormone promotes an increase in the activity of Osteoclasts?
PTH or PARATHYROID HORMONE
The stacked Chondrocytes undergo rapid cel division within the ?
ZONE OF PROLIFERATION
Which hormone, produced by Thyroid Gland, works opposite to Parathyroid Hormone?
CALCITONIN
Which of the following organs DOES NOT directly regulate blood calcium concentration in response to PTH?
LIVER
As a result of males producing more testosterone at puberty, _____
APPOSITIONAL BONE GROWTH INCREASES
Which of the following hormones inhibits Bone Growth?
PARATHYROID HORMONE
True/False: Bone Deposition exceeds Bone Resorption when Bones are stressed through Compression or Tension
TRUE
Which of the following does NOT correctly depict the effects of Parathyroid Hormone PTH?
PTH DECREASES BLOOD CALCIUM ION CONCENTRATION
The small, fluid filled cavity occupied by an Osteocyte is called a(n)?
LACUNA
True/False: All bone growth completely stops by the end of adolescence
FALSE
What cells contribute to the process of calcification during Intramembranous Ossification?
KERATINOCYTES
Which statement best describes Primary Bone?
PRIMARY BONE CONTAINS ABUNDANT OSTEOCYTES AND LITTLE INORGANIC MATRIX
The hard, dense bone that forms the outer surface of Bone is?
COMPACT BONE
Which dietary requirement for bone health can be made in response to skin exposure to UV light?
VITAMIN D
What hormone promotes an increase in the activity of Osteoclasts ?
PTH
What stimulates the release of PTH?
LOW BLOOD CALCIUM ION LEVELS
What accounts for the majority of bone (Osseous) tissue matrix ?
CALCIUM SALTS
A radiograph reveals Epiphyseal Lines in the long bones of a 12 year olds hand
THE EPIPHYSEAL PLATES HAVE OSSIFIED, and FURTHER GROWTH IN LENGTH IS NOT POSSIBLE
Bones with a Diaphysis & Epiphyses are classified as:
LONG BONES
Cells that develop into Osteoblasts are called:
OSTEOGENIC CELLS
Bones that are constantly undergoing resorption for reason, which of the following cells accomplishes this process?
OSTEOCLASTS
What is the last process to occur in the Epiphyseal Plate of a Long Bone?
ZONE OF OSSIFICATION
How long does a bone repair take ?
6-8 WEEKS
The structural units of Mature Compact Bone are called:
OSTEONS
Intramembranous Ossifications occurs in :
SKULL BONES
True/False: The Epiphyseal Plate is a layer of Compact Bone from which Longitudinal Growth occurs ?
FALSE
Secondary Ossification centers are characteristics of :
ENDOCHONDRAL OSSIFICATION
Why is Articular Cartilage an important part of Long Bone structure ?
ARTICULAR CARTILAGE IS THE SIT OF LENGTHWISE GROWTH IN YOUNG CHILDREN AND ADOLESCENTS
Which of the following is NOT one of the functions of the Skeletal System?
VITAMIN STORAGE AND FLUID HOMEOSTASIS
Bones located within tendons, such as Patella, are called____
SESAMOID BONES
Which of the following functions is associated with the skeletal system ?
MOVEMENT
What is the function of Red Bone Marrow?
HEMATOPOIESIS
Osteogenesis Imperfecta is a Congenital Bone disease caused bu a Collagen deficiency. What is a symptom ?
BRITTLE BONES
The large, multinucleated cells that are responsible for bone resorption are called____
OSTEOCLASTS
Small cavities that are located between Lamellae and contain Osteocytes are called____
LACUNAE
The major organic component of bone ECM is ____
COLLAGEN
Bone cells that are found in the Endosteum and Periosteum and also builds new bone matrix is called ____
OSTEOBLASTS
The type of bone that has fully formed Lamellae with regularly arranged collagen bundles and a higher percentage of Inorganic matrix is classified as____
SECONDARY BONE
Which of the following events does NOT happen during Endochondral Ossification ?
MESENCHYMAL CELLS DIFFERENTIATE INTO OSTEOBLASTS
Predict the effect of growth hormone deficiency during childhood
SHORT STATURE
Which of the following hormones does NOT cause bone growth ?
PARATHYROID HORMONE
Bone deposition involves _____
CALCIFICATION
Which of the following is NOT a dietary factor that influences bone remodeling ?
TESTORTERONE
What is the Last step in Bone Fracture Repair ?
THE BONE CALLUS IS REMODELED AND PRIMARY BONE IS REPLACED WITH SECONDARY BONE
The hormone Calcitonin causes an Increase in____
BONE DEPOSITION
Which muscle tissues attaches to bone?
SKELETAL
Which tissue contains only ONE of the protein fibers associated with Connective Tissue ?
RETICULAR CONNECTIVE TISSUE
Which muscle tissue is responsible for contractions of the stomach ?
SMOOTH
Which tissue is best suited for transport of gases between the blood and the body’s tissues?
SIMPLE SQUAMOUS EPITHELIUM
Which muscle tissue has short, branching cells ?
CARDIAC
Loose Connective Tissue Proper
FIBROBLASTS, MACROPHAGES, and MAST CELLS
What is the primary cell type found in ligaments?
FIBROBLAST
Which muscle tissue contains myofilaments ?
SMOOTH, SKELETAL, and CARDIAC
Three shapes of Epithelial Cells
SQUAMOUS, CUBOIDAL, and COLUMNAR
Subcategories of Connective Tissue Proper
LOOSE CONNECTIVE, DENSE CONNECTIVE, RETICULAR CONNECTIVE, and ADIPOSE CONNECTIVE
3 Cartilage Types
HYALINE, ELASTIC, and FIBROCARTILAGE
Dense Regular Connective Tissue
PARALLEL ARRANGEMENT OF COLLAGEN FIBERS
Blood
TRANSPORTS OXYGEN AND HORMONES
Cartilage
CONTAINS CHONDROCYTES
Bone
STORES MINERALS
Dense Irregular Connective Tissue
RANDOM ARRANGEMENT OF COLLAGEN FIBERS
Adipose Tissue
CUSHIONS AND INSULATES
Which connective tissue resists unidirectional stress?
DENSE REGULAR
How do the 3 types of Cartilage differ from each other ?
QUANTITY OF THE THREE FIBER TYPES IS DIFFERENT IN THE THREE CARTILAGES
Which cell type is commonly found in Connective Tissue Proper
FIBROBLASTS
3 types of Muscle Tissue
SKELETAL, CARDIAC, and SMOOTH
Which muscle tissue type contains multinucleate cells ?
SKELETAL ONLY
Which tissue type is responsible for propelling food along digestive tract ?
MUSCLE
Which tissue is responsible for storing both fats and minerals ?
CONNECTIVE
Which tissue type is responsible for absorption and secretion of substances ?
EPITHELIAL