Module 10: Problem Set
Question 1: Describe 4 functions of the skeleton.
Functions of the skeleton are that it gives us stability, shape and form. It also
gives us the ability to move in multiple directions.
Question 2: Name the 2 major skeletal divisions and the bones that comprise each.
The 2 skeletal divisions are the axial skeleton which consists of the skill, rib
cage, sternum and vertebral column. and the appendicular skeleton
consists of the lower and upper bone extremities as well as the pelvic and
pectoral girdles.
Question 3: Compare and contrast cortical bone and cancellous bone.
Cortical bone is the outer shell of the bone and the cancellous bone is the
inner spongy part of the bone. They are both mature bones that vary within
the body and can change structurally.
Cortical bone forms the hard, outer shell of bone while cancellous bone forms the
interior aspect of bone. Cortical bone has a densely packed extracellular matrix
giving it its rigidity while cancellous bone is composed of trabeculae and bone
marrow.
Question 4: List the 4 shapes of bone and give an example of each.
Long bones - femur,
humerus Short bones-
foot, hand
Flat bones - Skill, rib cage.
Irregular bones- vertebrae,
pelvis
Question 5: Describe the structure and function of the extracellular matrix of osseous
tissue.
The structure of the extracellular matrix is what gives bone the ability to
support weight of the body. It's composed of an organic matrix which is
filled with collagen fibers and ground substance. Its function is to repair
1
, bone and helps with bone growth. The Matrix is also made up of an
inorganic matrix which is made of calcium phosphate. Its function is to
remove from the blood, sodium, heavy metals, carbonate and magnesium.
2
Question 1: Describe 4 functions of the skeleton.
Functions of the skeleton are that it gives us stability, shape and form. It also
gives us the ability to move in multiple directions.
Question 2: Name the 2 major skeletal divisions and the bones that comprise each.
The 2 skeletal divisions are the axial skeleton which consists of the skill, rib
cage, sternum and vertebral column. and the appendicular skeleton
consists of the lower and upper bone extremities as well as the pelvic and
pectoral girdles.
Question 3: Compare and contrast cortical bone and cancellous bone.
Cortical bone is the outer shell of the bone and the cancellous bone is the
inner spongy part of the bone. They are both mature bones that vary within
the body and can change structurally.
Cortical bone forms the hard, outer shell of bone while cancellous bone forms the
interior aspect of bone. Cortical bone has a densely packed extracellular matrix
giving it its rigidity while cancellous bone is composed of trabeculae and bone
marrow.
Question 4: List the 4 shapes of bone and give an example of each.
Long bones - femur,
humerus Short bones-
foot, hand
Flat bones - Skill, rib cage.
Irregular bones- vertebrae,
pelvis
Question 5: Describe the structure and function of the extracellular matrix of osseous
tissue.
The structure of the extracellular matrix is what gives bone the ability to
support weight of the body. It's composed of an organic matrix which is
filled with collagen fibers and ground substance. Its function is to repair
1
, bone and helps with bone growth. The Matrix is also made up of an
inorganic matrix which is made of calcium phosphate. Its function is to
remove from the blood, sodium, heavy metals, carbonate and magnesium.
2
