WGU D203 OA Prep Questions And
Answers|| verified
\,What are the functions of the skeletal system?
hematopoiesis, maintaining homeostasis, ossification, storage of calcium and phosphorus
\.What is ossification?
process of bone formation, when cartilage is replaced by bone
\.How are bones classified?
Classified by their shape, which influences their function
\.List the 5 Classes of Bone
Long, flat, short, sesamoid, and irregular
\.Describe long bones
Cylinder-like in shape and longer than they are wide
\.Femur, humerus, tibia, and phalanges fall under which type of bone class?
Long bone
\.Carpals and tarsals fall under which type of bone class?
Short bones
\.Describe short bones
Similar in length and width
\,Describe irregular bones
Irregular in shape
\.Vertebrae, hip bones, and the mandible fall under which bone class?
Irregular bones
\.Describe sesamoid bones
, Small and round; embedded in tendons
\.The patella falls into which bone class?
Sesamoid bones
\.How are joints classifed?
By range of movement: immovable, partially moveable, and moveable
What are the 3 main types of joints?
1. Cartilaginous (partially moveable)
2. Fibrous (immoveable)
3. Synovial (moveable)
Describe immoveable joints
Connected by dense connective tissue and have no joint cavity (ex: skull and ribcage)
Describe moveable joints
Have fluid-filled cavities (bursa) that surround and provide cushion for the articulating bone (ex:
hip, knee joints)
Describe partially moveable joints
Connected by hyaline cartilage and do not have a joint cavity (ex: joints between spinal
vertebrae)
Name the 3 types of connective tissue
cartilage, ligaments, tendons
Function of cartilage
Covers the ends of bones of moveable joints, also gives shape and support to other parts of
body
Function of ligament
Binds one bone to another, allows for side to side mobility
Function of tendon
Attaches muscle to bone, aids in the movement of a bone or structure
What are the 3 types of muscle tissue?
Answers|| verified
\,What are the functions of the skeletal system?
hematopoiesis, maintaining homeostasis, ossification, storage of calcium and phosphorus
\.What is ossification?
process of bone formation, when cartilage is replaced by bone
\.How are bones classified?
Classified by their shape, which influences their function
\.List the 5 Classes of Bone
Long, flat, short, sesamoid, and irregular
\.Describe long bones
Cylinder-like in shape and longer than they are wide
\.Femur, humerus, tibia, and phalanges fall under which type of bone class?
Long bone
\.Carpals and tarsals fall under which type of bone class?
Short bones
\.Describe short bones
Similar in length and width
\,Describe irregular bones
Irregular in shape
\.Vertebrae, hip bones, and the mandible fall under which bone class?
Irregular bones
\.Describe sesamoid bones
, Small and round; embedded in tendons
\.The patella falls into which bone class?
Sesamoid bones
\.How are joints classifed?
By range of movement: immovable, partially moveable, and moveable
What are the 3 main types of joints?
1. Cartilaginous (partially moveable)
2. Fibrous (immoveable)
3. Synovial (moveable)
Describe immoveable joints
Connected by dense connective tissue and have no joint cavity (ex: skull and ribcage)
Describe moveable joints
Have fluid-filled cavities (bursa) that surround and provide cushion for the articulating bone (ex:
hip, knee joints)
Describe partially moveable joints
Connected by hyaline cartilage and do not have a joint cavity (ex: joints between spinal
vertebrae)
Name the 3 types of connective tissue
cartilage, ligaments, tendons
Function of cartilage
Covers the ends of bones of moveable joints, also gives shape and support to other parts of
body
Function of ligament
Binds one bone to another, allows for side to side mobility
Function of tendon
Attaches muscle to bone, aids in the movement of a bone or structure
What are the 3 types of muscle tissue?
