AnatomyChapter 5
Two or more bones meet at a location called a(n) ________.
Articulation (joint)
The skull, vertebral column, and thoracic cage form the _____ skeleton.
Axial
What type of fracture is common in osteoporotic bones of older people?
Compression
What type of fracture has a broken bone portion pushed inward?
Depressed Fracture
Julie experienced a break in the shaft of her femur. What part of her bone is fractured?
Diaphysis
You examine an articulated skeleton in the laboratory & determine the skeleton to be female since
Distance between the female ischial spines is greater than in a male
What does collagen contribute as a component of bone?
Elasticity
Which of the following is only associated with a child's bone?
Epiphyseal plate
Differentiate among the three types of joints based on structural and functional classifications. Provide examples of each type of joint:
Fibrous: Synthroses (immoveable) Example: Sutures Cartilaginous: Amphiarthroses (Slightly moveable) Example: Vertebrae Synovial: Diarthroses (Moveable) Ex: Knee
The fibrous connections between the bones of a fetal skull are
Fontanels
The large hole located in the base of the occipital bone that allows the spinal cord & brain to connect is the
Foramen magnum
The head of the humerus fits into the _____ of the scapula.
Glenoid Cavity
What type of fracture has an incomplete bone break?
Greenstick Fracture
What type of fracture involves broken bone ends forced into each other?
Impacted fracture
What is not a function of the skeletal system?
Regulation of blood pressure
Which type of rib connects directly to the sternum by way of costal cartilage?
True ribs only
What bones protect the spinal cord?
Vertebra
What will decrease a person's risk for developing osteoporosis?
Weight-Bearing Exercises
Which hormone is responsible for raising blood calcium levels when they drop?
Parathyroid hormone (PTH)
How would you classify the shoulder and hip joints?
Ball and socket joints
From superior to inferior, what is the correct order of vertebra?
Cervical, thoracic, lumbar
What type of fracture involves the bone breaking into many fragments?
Comminuted fracture
The femur, tibia, humerus, and radius are all classified as
Long bones
Which spinal curvature is associated with lower back and appears when a baby begins to walk?
Lumbar
Which spinal curvature is associated with lower back and appears when a baby begins to walk?
Ossification
What type of bone cell is primarily active when bone growth occurs?
Osteoblast
When growing bones widen through appositional growth, what cells add bone matrix to the diaphysis?
Osteoblasts
Cube-shaped bones that contain mostly spongy bones are called
Short
The axial skeleton contains
Skull, thoracic cage, true and false ribs
What type of fracture has a ragged bone break resulting from twisting forces?
Spiral
The temporal bones are joined with the parietal bones at the _____ sutures.
Squamous
What does yellow bone marrow do?
Store adipose tissue
Immovable joints are classified as
Synarthroses
What type of joint has a joint cavity, ligaments, & articular cartilage?
Synovial