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50 Cards in this Set
- Front
- Back
Which of the following functions of the skeletal system is most affected by gravity?
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body support
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Which of these is a primary role of the skeletal system?
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leverage
calcium homeostasis muscle attachment site All of these are primary roles of the skeletal system. |
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Osteoblasts differentiate from __________.
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osteoprogenitor cells
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Osteoblasts are squamous cells that develop into ___________.
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osteocytes
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Which of the following characteristics applies to the cells known as osteoclasts?
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the cells dissolve matrix
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osteoclasts
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break down bone- for release of calcium
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Spongy bone comprises an open meshwork of osseous spicules called __________.
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trabeculae
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The type of bone that forms the diaphysis of a long bone is called __________ bone.
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compact
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spongy bone is filled with
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red marrow
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During endochondral bone formation, the primary ossification center is located in the __________.
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diaphysis
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What structure is necessary for a bone to grow in length?
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epiphyseal cartilage
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Which of these forms by intramembranous bone formation?
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mandible
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Endochondral bone development begins with the formation of a(n) __________.
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cartilage model
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If osteoblasts are more active than osteoclasts, bones may become __________.
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denser
stronger thicker Any of these changes may result if osteoblasts are more active than osteoclasts. SubmitMy AnswersGive Up |
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Which of these cell types plays a role in bone remodeling?
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osteoclast
osteoblast osteocyte All of these types of cells are involved in bone remodeling. |
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Which of these factors does not contribute significantly to normal bone formation?
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potassium intake
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Which of these is not required for normal bone formation?
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vitamin e
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Calcitriol is required for __________.
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absorbing dietary calcium and phosphate
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A drop in blood calcium levels stimulates the secretion of __________.
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Parathyroid Hormone
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Roughly what portion of the body's total calcium content is deposited in the skeleton?
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99%
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What is normally found at a fracture hematoma?
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blood clot
dead bone bone fragments All of these are found at the site of a fracture hematoma. |
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When a fractured bone heals it leaves a thickened region known as a ____________.
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callus
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In a __________ fracture, the broken bone penetrates through the skin.
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compound
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A bone scan of an older patient revealed the beginnings of osteoporosis. Which of these interventions is not recommended?
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bed rest
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The hip joint is a __________.
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diarthrosis
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Which of these is a type of joint?
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synovial
fibrous cartilaginous All of these are types of joints. |
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The coxal bones join anteriorly at a __________.
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symphysis
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The synarthrosis that binds the two parietal bones together is a ___________.
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suture
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a synovial joint also called a
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diarthrosis
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bursae may be found
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in tendon sheaths
beneath the skin covering a bone within connective tissue exposed to friction or pressure Bursae may be found in all of these locations. |
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articular cartilage is found within a
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synovial joint
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The fluid that accumulates within a swollen joint was produced by the __________,
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synovial joint
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the elbow joint is an example of the
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monaxial joint
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the joint with the greatest range of motion is the
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humerus scapula
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Excessive turning of the sole of the foot outward is called __________.
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eversion
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Which of the following movements best illustrates abduction?
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a. spreading the fingers
b. turning the palm upward c. opening the mouth d. bending of the head backwards answer: spreading the fingers |
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the opposite of dorsiflexion is
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plantar flexion
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movement of the vertebral column toward the side
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lateral flexion
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Protrusion of the nucleus pulposus is a sign of __________.
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a herniated intervertebral disc
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Which structure of the intervertebral articulation gives the disc its resiliency and ability to absorb shock?
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nucleus pulposus
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The knee is reinforced laterally by the ________ ligament.
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fibular collateral
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Which of these statements about the hip joint is false?
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It has a biaxial design.
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Which of these more commonly occurs with advancing age?
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osteoarthritis
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Receptors in the joint capsule provide information directly to the __________ system.
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nervous
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The __________ nervous system controls glandular secretion.
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sympathetic and parasympathetic
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The afferent division of the PNS _____________.
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carries sensory information
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functions to sheath certain axons of the central nervous system (CNS).
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The oligodendrocyte
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Astrocytes have many functions, including the maintenance of the
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blood - brain barrier (BBB).
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The axon hillock connects the axon with the __________.
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cell body
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Which is the largest and most abundant type of neuroglia?
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astrocytes
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