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why would running and jumping have a larger affect on bone health than walking? = osteoblasts are more active and osteoclast maintain more normal activity when mechanical stress is places on bone
Cells active when cartilage needs to be removed for new bone to be produced = chondroclasts
The epiphyseal plate in a growing long bone is an example of = a synchrondrosis
Do surface markings allow bones to lengthen and shorten = no
Whats the function of the meniscus = absorbs shock
How does mechanical activity influence bone strength = cells called osteoblasts build new bone to make it stronger or denser when signaled by movement
Why does a fracture of the clavicle usually occur in the mid region of the bone = due to the weakness of the junction of the two curves of the clavicle
What type of bone is the frontal bone = flat bone
Area of lone made of dense irregular connective tissue = periosteum
Which factor influences epipyseal plate growth = testosterone and estrogen
Which cranial bones are inferior lateral = temporal
Functions of skeletal system = assistance in movement, blood cell production, mineral homeostasis, triglyceride storage, protection, support
Does the perosteum produce red blood cells = no
What cells are active in fracture repair during the production of hard spongy bone = osteoblasts
What part of the bone produces red blood cells = epipyses
What cranial bone is the keystone bone = sphenoid
How does osteoporosis increase fracture risk = causes bones to become weaker and less dense, they lose minerals like calcium, osteoclast activity outweights osteoblast activity causing bones to be lost faster than they are replaced, bones become thinner and weaker more likely to fracture, which can make standing walking and homeostasis more difficult because less minerals are stored.
Does the mandible have a sinus cavity = no
Synovial joint characteristics = free movable, contain a joint cavity, covered in hyaline cartilae
What does dense regular connective tissue make = ligaments
What allows the diaphysis to grow in lenght = epiphyseal plate
Where in the bone is yellow bone marrow located = center of dyaphysis
Where in the bone is red bone marrow located = epiphyses
Is the axial skeleton composed of bones that run through the axis of the body = no
Which is not an auditory ossicle = anvil
What is not the axial skeleton = carpals
Scoliosis = sideways curve of spine (S or C shape) in any region
Kyphosis = excessive outward curve of the thoracic region (bad posture)
Lordosis = excessive inward curve of the lumbar (arching)
Which cranial bone contains hearing organs = temporal
Unpaired = mandible
What happens when someone cracks their knuckles = the pressure inside the synovial joints and gases form bubbles that cause a pop
What occurs during bone remodeling = bone resorption, involves bone deposition, occurs throughout lifetime
What is the formation of cartilage from bone called = endochondral ossification
Thorax =scapula
Vertebrae = cervical - transverse foramen, thoracic - articular facets for rib attachment, lumbar - largest bodies, sacrum - triangular, coccyx - tailbone
Epiphyseal plate in adulthood = growth plate closes and is replaced by bone and cant grow