Anatomy Skeletal System
what describes a short bone?
a bone that is not longer than it is wide
all of the following are functions of the sternum except
a protective plate for the lungs
all of the following are functions of the intervertebral disc except which one?
allow nerves to exit between vertebrae
what must be present for calcium to be absorbed from the small intestine
calcitriol
all of the following are prominent features on the scapula except
capitulum
all of the following are functions of parathyroid hormones except which one?
causes osteoblasts to deposit bone, reducing blood calcium levels
what is a sinus?
cavities within the bone
which two bones connect the arm to the axial skeleton
clavicle and scapula
all of the following are functions of the skeletal system except
communication
all of the following are required fir bone remodeling except which one
decreased stress on bones
what is the relationship between bone disposition and the bone reabsorption in people 45 and older
deposition<reabsorption
what term below describes the shaft along the bone?
diaphysis
which type of ossification is complete when the epiphyseal plates are completely closed?
endochondral
which statement correctly describes kyphosis
exaggerated abnormal curvature of the thoracic vertebrae
what types of cartilage is found in the intervertebral disks
fibrocartilage
all of the following are functions of the mucous membrane lining of the sinuses except
fill the sinus with air
what is the name of the large opening in the occipital bone that allows the spinal cord to exit its cranial cavity
foramen magnum
which statement about red bone marrow is false?
found in the cavity of long bones
what type of joint is formed by fibrous ligaments holding a tooth in its socket?
gomphosis joint
what is the function of hydroxyapetite in bone
harden the matrix
compression of the intervertebral disc causing the disc to bulge out laterally is called
herniated disc
what type of cartilage covers the ends pf long bones?
hyaline cartilage
what type of bone is a sphenoid bone?
irregular bone
which statement is false regarding the hyoid bone?
is attached to the mandible
which statement about intramembranous ossification is false
it forms the long bones, vertebrae, ribs, sternum,scapula, pelvis, and limb bones pf the developing fetus
which statement is false regarding rheumatoid arthritis
it is the most common form of arthritis
which term eat describes an exaggerated curvature of the lumbar vertebrae?
lordosis
all of the bones have sinuses except the
mandible
what are sinuses lined with?
mucous membranes
what type of fracture results in a break in the bone on an angle?
oblique
all of the following are disorders that cause the bone softening except
osteoarthritis
which statement is false regarding mineral deposition in bone?
osteoblasts produce the bones hydroxyapatite crystals
which disorder is a congenital defect characterized by brittle bones that lack collagen fibers?
osteogenesis imperfecta
what part of the long bone is a source of osteoblasts?
periosteum
what is the function of the deltoid tuberosity of the humerus?
points of attachment for muscle tendons
which type of synovial joint has concave surfaces of the bones that articulate with one another
saddle
what is the most common abnormal curvature of the spine?
scoliosis
which of the following is true about closed reduction
sets bones in proper alignment without surgery
all of the following are types of synovial joints except
suture
what is ankylosis
the destruction of cartilage between joints eventually leading to fusion of the articulating bones
which statement correctly describes the pectoral gridle and the pelvic gridle
the pectoral gridle bones attach the arm bones to the axial skeleton while the pelvic gridle bones attach the leg bones to the axial skeleton
what structure protects the pituitary gland?
the sella turcica
which statement is false regarding cancellous bone?
this type of bone is arranged in a series of osteons
which gland secretes calcitonin
thyroid gland
which bone articulates with the femur at the knee?
tibia
what is the function of the pubic symphysis
to connect the right and left pelvic gridles
what type of bone marrow is found in the cavity of mature long bones?
yellow
how many bones make up the adult spinal column
26
which of the following correctly compares endochondral bone growth and appositional bone growth
ECBG deposits bone at the epiphyseal plate allowing the bone to grow longer.ABG occurs in all types of bone and allows bone to become more massive
what is the function of the vertebral foramen
an opening that allows the spinal cord to pass through the vertebrae
which of the following describes periosteum
the fibrous covering of the diaphysis
which of the following is not a feature of compact bone
trabeculae
