unit joints
to do a lateral split, initial movement of the legs is
abduction
scoliosis
abnormal lateral curvature
the function of the intervertebral discs is to
act as shock absorbers, prevent bone-to-bone contact, allow for flexion and rotation of the vertebral column
in the hip joint, the arrangement that keeps the head of the femur from moving away from acetabulum is the
articular capsule enclosing the femoral head and neck
menisci
articular discs
ligaments
bone-to-bone attachment
freely movable joints typically found at th end of long bones are called
diarthroses or synovial joints
the urinary system supports the skeletal system by
disposing of waste products, conserving calcium and phosphate ions
the radical, collateral, annular, and ulnar collateral ligaments provide stability for the
elbow joint
appositional growth
enlargement process
kyphosis
exaggerated thoracic curvature
movements of the vertebral column are limited to
flexion and extension, lateral flexion, rotation
movements such as dorsiflexion and plantar flexion involve moving the
foot
the extremely stable joint that is almost completely enclosed in a bony socket is the
gomphosis joint
the knee joint functions as a
hinge joint
the movement that allows you to gaze at the ceiling is
hyperextension
the joint that resembles three separate joints with no single unified capsule or common synovial cavity is the
knee joint
the joint that is correctly matched with the type of joint indicated is
knee- synovial
patella
kneecap
osteocytes
mature bone cells
abduction
movement away from midline
adduction
movement toward the midline
the synovial fluid that fills a joint cavity
nourishes the chondrocytes, provides lubrication, acts as a shock absorber
"dens"
odontoid process
a movement of the thumb that allows for grasping is
opposition
the special movement of the thumb that enables it to grasp and hold an object is
opposition
osteoblasts
osteogenesis
the respiratory system is functionally associated with the skeletal system bc the respiratory system provides
oxygen and provides carbon dioxide
the skeletal system is associated with all the other systems in the body in that it
provides mechanical support, stores energy reserves, stores calcium and phosphate reserves
flexion is movement in the anterior-posterior plane that
reduce es the angle between the articulating elements
twiddling your thumbs during a lecture demonstrates the action that occurs at a
saddle joint
the joint that permits the greatest range of motion of any joint in the body is the
shoulder joint
amphiarthrosis
slightly movable joint
the functional relationship of the skeletal system to the nervous system is that the skeletal system
stores calcium for neural functions, has receptors at joints that provide information about body positions, protects the brain and spinal cord
the primary function of menisci is synovial joints is to
subdivide a synovial cavity, channel flow of synovial fluid, allow for variations in the shapes of articular surfaces
the opposing move movement of pronation, in which the palm is turned forward, is called
supination
contraction of the biceps brachia muscle produces
supination of the forearm and flexion of the elbow
a synarthrotic joint found only between the bones of the skull is a
suture
the amphiarthrotic joint where bones are separated by a wedge or pad of fibrocartilage is a
symphysis
a totally rigid immovable joint resulting from fusion of bones is a
synarthrosis
diarthrotic joints that permit wide range of motion are called
synovial joints
the elbow joint is quite stable because
the bony surfaces of the humerus and the unlawfully lock, the articular capsule is very thick, the capsule is reinforced by stout ligaments
the reason the points of contact in the knee joint are constantly changing is
there is no single unified capsule or a common synovial cavity, the menisci conform to the shape of the surface of the femur, the rounded femoral condyles roll across the top of the tibia
