Musculoskeletal System Flashcards
abduction
Movement away from midline of body
acetabulum
Rounded depression in pelvis that joins the femur, forming the hip joint
acromion
Outward extension of shoulder blade forming the point of the shoulder
adduction
Movement toward midline of body
articular cartilage
Smooth, glistening white tissue that covers the surface of a joint
articulation
Any type of joint
bone
Dense, hard connective tissue composing the skeleton
bone depression
Opening or hollow region serving as a connection for bones, or passageway for blood vessels and nerves
bone process
Enlarged area that extends from bones as an attachment for muscles, tendons, and ligaments
bursa (plural: bursae)
Sac of fluid near a joint
calcium
A mineral constituent of bone
calcium
A mineral constituent of bone
cancellous bone
Spongy, porous bone tissue in inner part of bone
cancellous bone
Spongy, porous bone tissue in inner part of bone
cartilage
Flexible, connective tissue
cartilage
Flexible, connective tissue
diaphysis
Shaft, or mid-portion, of a long bone
disc
Flat, round, plate-like structure
dorsiflexion
Upper movement of the foot
epiphyseal plate
Cartilaginous area at the ends of long bones where lengthwise growth takes in the immature skeleton
epiphysis
Each end of a long bone; area beyond the epiphyseal plate
extension
Straightening of a flexed limb
facial bones
Bones of the face: lacrimal, mandibular, maxillary, nasal, vomer, and zygomatic
fascia
Fibrous membrane separating and enveloping muscles
fascia
Fibrous membrane separating and enveloping muscles
flexion
Downward movement of the foot
flexion
Downward movement of the foot
fontanelle
Soft spot (incomplete bone formation) between the skull bones of an infant
foramen magnum
Opening of the occipital bone through which the spinal cord passes
haversian canals
Minute spaces filled with blood vessels; found in compact bone
insertion of a muscle
Connection of the muscle to a bone that moves
insertion of a muscle
Connection of the muscle to a bone that moves
ligament
Fibrous connective tissue that binds bones to other
ligament
Fibrous connective bands binding bones to other bones
malleolus
Round process on both sides of the ankle joint
manubrium
Upper portion of the sternum
mastoid process
Round projection on the temporal bone behind the ear
medullary cavity
Central, hollowed-out area in the shaft of a long bone
meniscus
Crescent-shaped fibrocartilaginous structure found in the knee
metaphysis
Flared portion of a long bone, between the diaphysis and the epiphyseal plate
olecranon
Large process on the proximal end of the ulna
origin of a muscle
Connection of the muscle to a stationary bone
origin of a muscle
Connection of the muscle to a stationary bone
orthopedist
Medical doctor who specializes in bone, joint, and muscle conditions
osseous tissue
Bone tissue
ossification
Process of bone formation
ossification
Process of bone formation
osteoblast
Bone cell that helps form bony tissue
osteoclast
Bone cell that absorbs and removes unwanted bony tissue
periosteum
Membrane surrounding bones; rich in blood vessels and nerve tissue
phosphorus
Mineral substance found in bones in combination with calcium
physiatrist
Medical doctor who specializes in rehabilitation
plantar flexion
Bending the sole of the foot downward toward the ground
pronation
Turning the palm downward
pubic symphysis
Area of confluence of the two pubic bones in the pelvis
red bone marrow
Found in cancellous bone; site of hematopoiesis
ribs
Twelve pairs of curved bones that form the chest wall; true ribs are the first 7 pairs; false ribs are pairs 8-10; floating ribs are pairs 11 and 12
rotation
Circular movement around a central point
sella turcica
Depression in the sphenoid bone where the pituitary gland is located
sinus
Hollow air cavity within a bone
skeletal muscle
Muscle connected to bones; voluntary or striated muscle
smooth muscle
Visceral muscle
striated muscle
Skeletal muscle
styloid process
Pole-like process extending downward from the temporal bone on each side of the skull
supination
Turning the palm upward
suture
Immovable joint between bones
suture joint
Immovable joint
synovial cavity
Space between bones at a synovial joint
synovial fluid
Viscous fluid within the synovial cavity
synovial joint
Freely movable joint
synovial membrane
Tissue lining the synovial cavity; produces synovial fluid
temporomandibular joint
Connection on either side of the head between the temporal bone of the skull and the mandibular bone of the jaw
tendon
Fibrous connective tissue that binds muscles to bones
tendon
Fibrous connective bands that connect muscles to bones
trabeculae
Supporting bundles of bony fibers in cancellous bone
vertebra
Individual segment of the spine composed of the vertebral body, vertebral arch, spinous process, transverse process, and lamina
visceral muscle
Muscle connected to internal organs; involuntary or smooth muscle
xiphoid process
Lower, narrow portion of sternum
yellow bone marrow
Fatty tissue found in the medullary cavity of most adult long bones