Lesson 2 Flashcards
Composed of 206 bones that, along with cartilage, tendons, and ligaments, make up the framework of skeleton of the body
Skeletal System
Consist of 80 bones. The primary bones of this skeleton are skull, spine, ribs, and sternum (thorax)
Axial skeleton
This skeleton consists of 126 bones, the primary bones of this skeleton are the shoulder or pectoral girdle, arms, hands, pelvic girdle, legs, and feet.
Appendicular skeleton
Composed of about 50% water and 50% a solid, calcified, rigid substance known as osseous (AH see us) tissue.
Bones
Bones are composed of about 50% water and 50% a solid, calcified, rigid substance known as?
Osseous
provide shape, support, and the framework of the body. Protect internal organs. Serve as a storage place for minerals such as slats, calcium, and phosphorus.
Bones
Play an important role in hematopoiesis
Bones
The formation of blood cells that takes place in bone marrow
Hematopoiesis
Provide a place to attach muscles and make movement possible through articulation
Bones
Long bones include:
Femur, tibia, fibula, humerus, radius, and ulna
Thigh
Femur
Larger shin
Tibia
Smaller shin bone
Fibula
Upper Arm
Humerus
Larger forearm
Radius
Smaller forearm
Ulna
include the carpals of the wrist and tarsals of the ankle.
Short bones
include the skull, sternum (breastbone), and scapula (shoulder bone).
Flat bones
include the vertebrae (spine), and pelvic.
Irregular bones
Growing end of the bone structure
Epiphysis
Shaft of the bone structure
Periosteum
Inner space containing bone marrow
Medullary
Lining of medullary cavity
Endosteum
a place where two or more bones connect. The manner in which they connect determines the type of movement allowed at that joint.
Joint
a joint that allows no movement. An example would be a cranial suture.
Synarthrosis
is a joint that allows slight movement. An example would be a vertebra.
Amphiarthrosis
a joint that allows free movement in a variety of directions, such as knee, hip, elbow, wrist, and foot.
Diarthrosis
moving a body part away from the middle.
Abduction
moving a body part toward the middle.
Adduction
bending a limb
Flexion
straightening a flexed limb
Extension
lying supine or face upward; or turning the palm or foot upward.
Supination
lying prone or face downward; or turning the palm downward.
Pronation
moving a body part in a circular motion
Circumduction
moving a body forward.
Protraction
bending a body part backwards.
Dorsiflextion
Turning inward
Inversion
Turning outward
Eversion
moving a body part around a central axis
Rotation
sitting straight up or reclining slightly; legs straight or bent.
Fowler’s position
lying supine with head lower than feet.
Trendelenburg position
lying on your left or right side
Lateral recumbent position
composed of separate bones called vertebrae, connected to form four spinal curves.
Vertebral Column
has more strength than a straight line, so can support the weight of the body and provide balance needed to walk.
Curve
vertebrae. It contains the sacrum and coccyx or tailbone.
Sacral curve
age-related loss of bone mass or density.
Osteoporosis
Bone is continually remodeled. It is broken down by____________ in a process called___________, and formed again by__________.
osteoclasts
resorption
osteoblasts
