bone formation, can be endochondral( formed within cartilage) or intramembranous(formes the flat bones of the skull, clavicle and mandible).
Hard, dense bone tissue that is beneath the outer membrane of a bone
A looser, more porous type of bone tissue found at the inner core of the epiphyses in long bones and all other bone types. Spongy gone is filed with red bone marrow, important in blood cell formation.
thin hyaline cartilage layer that covers epiphyses of bones in synovial joints
struts that form in response to stress in spongy bone
means "little lake," small pockets situated between lamellae containing osteocytes of compact bone.
area of cartilage where long bones grow during childhood and adolescence
is the resulting line when the epiphyseal plate is replaced by bone. due to cease of grow. age 18-21.
bone structures parallel to the body's core, head, vertebrae
system of appendages; limb, pelvic girdle and shoulders
inflexible joint between two fixed bones
bone that is suspended in the mid neck region and provides a moveable base for the tongue
breastbone; the flat bone that articulates with the clavicles and the first seven pairs of ribs
flattened bones that emerge from the cervical or thoracic spine to shape the thorax.
top 7 pairs of ribs that attach directly to the sternum by costal cartilage
Lower five pairs of ribs indirectly attached to sternum
lowest two pairs of ribs; attached only to the vertebral column
protein that functions in muscle contraction, A contractile protein. In skeletal and cardiac muscle, actin polymerizes (along with other proteins) to form the thin filaments. Actin is involved in many contractile activities, such as cyotkinesis, pseudopod formation, and muscle contraction.
protein that functions in muscle contraction., One of the contractie proteins in muscle tissue. In skeletal and cardiac muscles, myosin forms the thick filaments. Myosin has intrinsic ATPase activity and can exist in two conformation, either high energy or low energy.
synapse / synaptic cleft
gap between neurons, across which nerve impulse must flow via chemical signal
the bones that attach the arm to the axial skeleton; the shoulder bones
the bones that connect the leg to the axial skeleton; the hip bones
partly movable joint
a fully movableor diarthrotic joint in which a synovial cavitiy present between the two articulating bones.
the contractile unit of a myofiber
the cell membrane of a muscle fiber, especially of a skeletal muscle fiber
the cytoplasm of a striated muscle fiber
linearly arranged groups of the contractile proteins actin and myosin
oxygen carrying protein in muscle cells
the outermost covering on a muscle, separating one muscle from the next
an inner connective tissue covering and supporting a groups of muscle cells
the innermost connective tissue lining, on top of the muscle cell membrane
types of muscle cells
there are 3 types of muscle cells,fast twitch, slow twitch, intermediate twitch
fast twitch muscle cells
fast glycolytic or anaerobic, provide a short burst of extreme energy and contraction power but they fatigue quickly, they are thicker, contain fewer mitochondria, larger glycogen reserves, less developed blood supply. responsible for hypertrophy.
intermediate twitch muscle cells
slow twitch muscle cells
appear red, have a large blood supply, many mitochondria within their sarcolemma, store an oxygen carrying protein called myoglobin, also called nonfatiguing or aerobic cells.