MUSCULOSKELETAL SYSTEM Flashcards
What is ossification?
Replacement of cartilage with bone
Cells:
OSTEOBLAST:
PRODUCE IMMATURE BONY TISSUE THAT REPLACES CARTILAGE
CELLS:
OSTEOCYTE:
NOURISHES AND MAINTAINS BONE
CELLS:
OSTEOCLAST:
REABSORB OR DIGEST BONE (REMODELS BONE)
BONE FORMATION:
____ IS A SOURCE OF CALCIUM
THE SKELETON
PROPER FORMATION OF BONE DEPENDS ON WHAT SOURCES:
CALCIUM, PHOSPHORUS, AND VITAMIN D
CALCIUM LEVEL MAINTAINED IN BLOOD BY:
PARATHYROID GLAND, WHICH SECRETES A HORMONE TO RELEASE CALCIUM FROM BONE
BONE STRUCTURE:
DIAPHYSIS:
SHAFT
BONE STRUCTURE:
EPIPHYSIS:
END
BONE STRUCTURE:
EPIPHYSIS:
END
BONE STRUCTURE:
METAPHYSIS:
CONE LIKE FLARED PORTION BETWEEN END AND SHAFT
BONE STRUCTURE:
EPIPHYSEAL LINE OR PLATE:
GROWTH PLATE WHERE CARTILAGE REPLACED BY BONE FOR BONE GROWTH (IN LENGTH)
BONE STRUCTURE:
EPIPHYSEAL LINE OR PLATE:
GROWTH PLATE WHERE CARTILAGE REPLACED BY BONE FOR BONE GROWTH (IN LENGTH)
ENDS OF BONES COVERED BY ARTICULAR CARTILAGE IN THE JOINT_______?
CUSHIONS JOINT AND ALLOWS IT TO MOVE SMOOTHLY
COMPACT BONE:
CONTAINS HAVERSIAN SYSTEMS FOR BLOOD VESSELS, NERVES, AND YELLOW BONE MARROW (MOSTLY FAT)
CANCELLOUS:
(SPONGY/TRABECULAR BONE): SPACES CONTAIN RED BONE MARROW WITH ELEMENTS FOR BLOOD FORMATION
YELLOW MARROW:
CHIEFLY FAT
RED MARROW:
RICH WITH BLOOD VESSELS & IMMATURE AND MATURE BLOOD CELLS IN VARIOUS STAGES OF DEVELOPMENT; IN LATER LIFE REPLACED WITH YELLOW MARROW; HEMATOPOIESIS IS THE PRODUCTION OF ALL TYPES OF BLOOD CELLS IN THE BONE MARROW
BONE PROCESSES AND DEPRESSIONS:
PROCESSES:
SERVE AS ATTACHMENTS FOR MUSCLES, TENDONS, AND LIGAMENTS.
BONE PROCESSES AND DEPRESSIONS:
DEPRESSIONS:
OPENINGS OR HOLLOW REGIONS HELP JOIN BONES OR SERVE AS PASSAGEWAYS FOR NERVES AND/OR VESSELS
Femur (thigh bone) label: Humerus (upper arm bone) label:
1: bone head. 1. Bone head
2: condyle. 2. Condyle
3: epicondyle. 3. Epicondyle
4: trochanters. 4 but says 5: tuberosity
Cartilage
Flexible, connective tissue
Collagen:
DENSE, CONNECTIVE TISSUE PROTEIN STRANDS FOUND IN BONE AND OTHER TISSUES
COMPACT BONE:
HARD, DENSE BONE TISSUE, USUALLY FOUND AROUND OUTER PORTION OF BONES
CRANIAL BONES:
SKULL BONES: ETHMOID, FRONTAL, OCCIPITAL, PARIETAL, SPHENOID, & TEMPORAL
DIAPHYSIS:
SHAFT, OR MID-PORTION, OF A LONG BONE
DISK (DISC)
FLAT, ROUND, PLATE-LIKE STRUCTURE
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
FACIAL BONES:
BONES OF THE FACE: LACRIMAL, MANDIBULAR, MAXILLARY, NASAL, VOMER, & ZYGOMATIC
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
LIGAMENT:
FIBROUS CONNECTIVE TISSUE THAT BINDS 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
METAPHYSIS:
FLARED PORTION OF A LONG BONE, BETWEEN THE DIAPHYSIS AND THE EPIPHYSEAL PLATE
OLECRANON:
LARGE PROCESS ON THE PROXIMAL END OF THE ULNA
ORTHOPEDIST:
MEDICAL DOCTOR WHO SPECIALIZES IN BONE, JOINT, & MUSCLE CONDITIONS
OSSEOUS TISSUE:
BONE TISSUE
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 DOC WHO SPECIALIZES IN REHABILITATION
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 & 12
SELLA TURCICA:
DEPRESSION IN THE SPHENOID BONE WHERE THE PITUITARY GLAND IS LOCATED
SINUS:
HOLLOW AIR CAVITY WITHIN A BONE
STYLOID PROCESS:
POLE-LIKE PROCESS EXTENDING DOWNWARD FROM THE TEMPORAL BONE ON EACH SIDE OF THE SKULL
SUTURE:
IMMOVABLE JOINT BETWEEN BONES
TEMPOROMANDIBULAR JOINT:
CONNECTION ON EITHER SIDE OF THE HEAD BETWEEN THE TEMPORAL BONE OF SKULL AND MANDIBULAR BONE OF JAW
TENDON:
FIBROUS CONNECTIVE TISSUE THAT BINDS MUSCLE 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, & LAMINA
XIPHOID PROCESS
LOWER, NARROW PORTION OF THE STERNUM
YELLOW BONE MARROW:
FATTY TISSUE FOUND IN THE MEDULLARY CAVITY OF MOST ADULT LONG BONES
CALC/O, CALCI/O
CALCIUM
KYPH/O:
POSTERIOR CURVATURE IN THORACIC REGION
LAMIN/O
LAMINA
LORD/O
CURVE
LUMB/O
LOINS, LOWER BACK
MYEL/O
BONE MARROW
ORTH/O
STRAIGHT
OSTE/O
BONE
SCOLI/O
CROOKED
SPONDYL/O, VERTEBR/O
VERTEBRA
-BLAST
EMBRYONIC CELL
-CLAST
TO BREAK
-LISTHESIS
SLIPPING