QUESTIONS & ANSWERS
Skeletal system is made up of how many bones? - ✔✔✔206
Periosteum - ✔✔✔The layer of connective tissue that covers all bone. Contains arteries for
nourishment of bone cells.
Osteoblasts - ✔✔✔Bone cells that initiate bone formation.
Osteocytes - ✔✔✔Bone cells that make up 90% of all cells in the body, and maintain bone.
Osteoclasts - ✔✔✔Bone cells that break down bone.
Ligaments - ✔✔✔Bands of connective tissue that hold bone to bone. Provide stability to a joint.
Tendons - ✔✔✔Tough long strands of fibers that form the ends of muscles.
Cartilage - ✔✔✔A layer of elastic tissue that forms at the ends of bones. It is anueral,
alymphatic, and avascular, but high is water content
Synarthrotic - ✔✔✔immovable
Amphiarthrotic - ✔✔✔slightly movable
Diarthrotic - ✔✔✔freely movable
Cortical Bone - ✔✔✔Forms the hard outer shell of bone
Cancellous Bone - ✔✔✔Forms the soft spongy marrow
, Diaphysis - ✔✔✔Shaft of long bones
Epiphysis - ✔✔✔Ends of long bones
Epiphyseal Plate - ✔✔✔Separates epiphysis and diaphysis of long bones. Is considered the
growth plate in children and can cause malformation if fractured as a kid.
Muscles of the rotator cuff? - ✔✔✔Supraspinatus, infraspinatus, teres minor, and subscapularis
Muscles that stabilize the shoulder joint? - ✔✔✔Deltoid, pectoralis major, teres major, and
lattissimus dorsi
"Surgical neck" of the Humerous - ✔✔✔Constriction below the greater and lesser tuberosities.
Os coxae, or innominate bone - ✔✔✔Pelvic girdle is composed of ilium, ischium, and pubis
Iliofemoral Ligament - ✔✔✔Connects the ilium to the femur
Ligamentum teres - ✔✔✔Ligament that connects femoral head to acetablum
Position used for total hip arthroplasty? - ✔✔✔Lateral. Pad anterior and posterior at umbilicus
and lumbar regions. Use bean bag if preferred.
Fracture bed - ✔✔✔Generally used for femoral neck and shaft fixation
Armboards - ✔✔✔Maintained at less than 90-degree angle to prevent branchial plexus stretch.
Tucking arms at the sides - ✔✔✔Pad the elbows to protect from ulnar nerve damage
Contraindications for tourniquet use - ✔✔✔Compartment syndrome, McArdle disease,
hypertension, or other vascular problems.