Skeletal System
Skull bones are joined by tight connections called
sutures
One role of the fontanels is to
allow for the change in shape of the skull during childbirth
Osteocytes
are the cells responsible for the production of new bone.
The joints between the phalanges are classified as
hinges
A twisting motion of the foot that turns the sole inward is termed
inversion
Humans have ______ pairs of ribs.
12
The appendicular skeleton contains ____ bones.
126
The vertebral column contains _____ lumbar vertebrae.
5
Functions of the curves of the verebral column include which of the following?
Aligns the body's weight in line with the body axis
The special movement of the thumb that allows it to grasp an object and hold onto it is called
Opposition
During the process of______, an existing tissue is replaced with bone.
Ossification
Immature, active bone cells that produce new bone matrix are termed
Osteoblasts
Bone cells capable of dissolving the bony matrix are termed
Osteoclasts
Which joint permits the greatest range of motion of any joint in the body?
Shoulder
D:
Periosteum
A compound fracture
results in bone projecting through the skin
In anatomical position, when the palm is moved to face posteriorly, the movement of the wrist and hand is called_______.
Pronation
A:
Proximal epiphysis
Which of the following is part of the axial skeleton?
Ribs
Which of the following is a carpal bone?
Scaphoid
The ankle consists of _____ tarsal bones.
Seven
Tarsal bones are classified as _____ bones
Short
The hyoid bone
serves as a base for muscles associated with the larynx, tongue, and pharynx.
Bone-forming cells are called
osteocytes
The connective tissue covering the outer surface of a bone is (the)
periosteum
The vertebral column contains _______ cervical vertebrae.
7
C:
Distal epiphysis
F:
Endosteum
H:
Epiphyseal Line
Ribs that are connected to the sternum by separate cartilaginous extensions are called ________ ribs.
False
Which of the following is the most important normal hip movement, one that is primarily limited by the surrounding muscles?
Flexion
Ribs that have no connection to the sternum are called_______.
Floating ribs
Which suture connects the occipital bone bone to the parietal bones?
Lambdoid
The bones of the limbs are classified as
Long bones
Bones of the skull that articulate with the nasal bones include (the)
Maxillary bone
Which of the following is an example of the skeletal system's primary function of providing structural support?
Individual bones provide a framework for the attachment of soft tissues and organs.
Which of the following curves develops as a child begins to stand and walk?
Lumbar
The bone that makes up the lower jaw is the
Mandible
G:
Marrow Cavity
Which joint type can perform rotation movements?
Ball-and-socket
Which of the following primary functions of the skeletal system applies to the role of bone marrow?
Blood cell production
Red bone marrow functions in the formation of
Blood cells
The sole of the foot is supported by the
Calcaneus and talus
The process of depositing calcium salts into a tissue other than bone is called
Calcification
Which of the following accounts for almost two-thirds of the mass of bone tissue?
Calcium phosphate
The atlas is classified as a ___________ vertebra.
Cervical
Moving the arm in a loop is an example of which angular movement?
Circumduction
The bony compartment that supports the brain is called the
Cranium
Which of the following is a function of synovial fluid?
Decrease friction within joint
B:
Diaphysis
The shaft of a long bone is called the ________.
Diaphysis
J:
Spongy Bone
Which tarsal bone articulates with the tibia and fibula, transmitting the body's weight from the tibia toward the toes?
Talus
Which of the following is part of the appendicular skeleton?
The scapula
Jason fractured this pisiform bone in an accident. What part of his body is injured?
Wrist
Which of the following is the most likely to be damaged during CPR?
Xiphoid process
A movement away from the longitudinal axis of the body in the frontal plane is
abduction
A movement toward the longitudinal axis of the body in the frontal plane is termed
adduction
The organic component of the matrix, which makes up around one-third of the mass of bone, is dominated by
collagen fibers
The areas of fibrous connective tissue that exist between cranial bones at birth are called
fontanels
The smooth, rounded, or oval articular process of a bone is termed a
head
Regulatory functions of the skeletal system inclue
maintaining the normal concentrations of calcium and phosphate ions in body fluids.
The most inferior portion of the sternum is called the
xiphoid process
The coronal suture is the boundary between which bones?
Frontal and parietal
Bones encased within the temporal bones that are involved in sound detection are called
auditory ossicles
The bones that form the palms of the hands are the
metacarpals
The primary function of _______ is exemplified when bones function as levers.
movement
When one closes the mouth, the movement is called______.
protraction
