chapter 3 perhaps? Flashcards

1
Q

what is the science concerned with the study of bones called

A

osteology

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2
Q

some adults have extra bones w/in the joints (______) of the skull

A

sutures

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3
Q

what are the extra bones w/in the joints/sutures of the skull called

A

sutural bones or wormian bones

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4
Q

what are the bones that may develop in tendons in response to stress as the tendons repeatedly move across a joint called

A

sesamoid bones

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5
Q

what is the largest sesamoid bone

A

the kneecap of patellae

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6
Q

what is cartilage

A

a semirigid connective tissue thats weaker than bone but more flexible and resilient

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7
Q

mature cartilage is _____

A

avascular

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8
Q

what are the three types of cartilage

A

hyaline cartilage, fibrocartilage, elastic cartilage

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9
Q

the most abundant and weakest type of cartilage, is translucent

A

hyaline cartilage

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10
Q

the type of cartilage with an extracellular matrix with numerous thick collagen fibers that help resist stretching/compression forces

A

firbrocartilage

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11
Q

the type of cartilage that contains highly branched elastic fibers

A

elastic cartilage

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12
Q

what is the process of blood cell formation called

A

hemopoiesis/hematopoiesis

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13
Q

where is the red bone marrow located

A

in the spongy bone at the distal ends of long bones

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14
Q

what is the red bone marrow called after it becomes inactive and turned into fatty tissue

A

yellow bone marrow

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15
Q

where are the select bones where adults have active red marrow that forms blood cells (hematopoiesis)

A

flat bones of the skull, vertebrae, ribs, sternum (breastbone), bones of the pelvic (ossa coxae), proximal end of the left/right humerus, proximal end of the right/left femur

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16
Q

the hematopoiesis in the active red marrow occurs under the stimulation of ______________ produced by the kidneys

A

erythropoietin

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17
Q

where is yellow bone marrow (in adults)

A

the shafts of long bones

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18
Q

long bones

A

function as levers, bones of the upper/lower extremities

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19
Q

short bones

A

cube shaped, transfer forces, typically the bones of the wrist and ankle, sesamoid bones are classified as short bones

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20
Q

irregular bones

A

varied in shape and have many surface projections for muscle attachment or articulation (vertebrae, ossa coxae)

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21
Q

the central shaft of long bones is called the _______

A

diaphysis

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22
Q

the cylindrical space w/in the diaphysis

A

medullary cavity

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23
Q

the medullary cavity is lined w a membrane called the _______

A

endosteum

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24
Q

the expanded, knobby region on the ends of long bones

A

the epiphysis

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25
the epiphysis is comprised of an outer layer of ______ _____ and an inner layer of ____ ____
compact bone, spongy bone
26
the epiphysis at a joint surface is covered in a thin layer of hyaline cartilage called the:
articular cartilage
27
a rough sheath of dense irregular connective tissue that covers the surface of the bone except for areas covered by the articular cartilage
periosteum
28
the periosteum is responsible for the growth in the _______ of the bone
width
29
the region between the epiphysis and the diaphysis found in growing children and teens
epiphyseal growth plate
30
the epiphyseal growth plate is responsible for the growth in ______ of the bone
length
31
the miotic activity in the epiphyseal growth plate is controlled by
human growth hormone (somatotropin)
32
the pituitary gland is nestled in the bony "_____ ____" of the ____ ____
"Sella turcica", sphenoid bone
33
the only remnant of the piphyseal growth plate in adults is a defined area of compact bone called the
epiphyseal line
34
stem cells located w/in both the periosteum and endosteum that gives rise to cells that become osteoblasts
osteoprogenitor cells
35
tendons connect ___ to ___
bones to muscles
36
ligaments connect ____ to ____
bones to bones
37
the bone cells that make the bone
osteoblasts
38
the initial semisolid form of bone matrix is called
osteoid
39
the bone cells that maintain the bone matrix and detect stress on a bone
osteocytes
40
the multinuclear phagocytic bone cells that break down bones
osteoclasts
41
the process of breaking down bone is called
osteolysis
42
bones consist of _____ _____ and _________ ______
organic compounds, inorganic compounds
43
organic compounds make up 1/3 of bone mass and consist of ____, _____ ____, and ______ _____
cells, collagen fibers, ground substance
44
the solid and relatively dense type of bone
compact bone
45
the porous type of bone where red marrow lives in adults
spongy/cancellous bone
46
the layer of spongy bone sandwiched between two layers of compact bone in the flat bones of the skull is referred to as
dipolë (die-pole)
47
growth from w/in the cartilage
interstitial growth
48
growth along the edge of the cartilage
oppositional growth
49
the primary component in bones
bone/osseous connective tissue
50
calcification is
the process in which the bone matrix gets strong due to minerals being deposited
51
end of the bone closest to the trunk
proximal epiphysis
52
end of the bone farthest from the trunk
distal epiphysis
53
calcium phosphate and calcium hydroxide form
hydroxy apatite
54
epiphyseal plate has 5 zones, they are (from farthest from medullary cavity to closest)
the zone of: 1. resting cartilage 2. proliferating cartilage 3. hypertrophic cartilage 4. calcified cartilage 5. ossification
55
what blood vessels supply diaphysis of long bones
nutrient artery/vein
56
what blood vessels supply the diaphyseal side of the epiphyseal plate
metaphyseal arteries/veins
57
what arteries supply the epiphyseal side of the epiphyseal plate
epiphyseal arteries/veins
58
what blood vessels provide blood to external structures in/outside the compact bone
periosteal arteries/veins
59
________is produced by the kidney and stimulates the production of somatotropin in the anterior petuitary gland
erythropoietin
60
what hormone stimulates the metabolic rate of osteoblasts
thyroid hormone
61
what hormone promotes calcium deposition and stops osteoclast activity
calcitonin
62
what hormone promotes the increase in blood calcium by promoting osteoclast activity
parathyroid hormone
63
what hormones stimulates osteoblasts, promote epiphyseal growth plate growth and eventual close
sex hormones (estrogen/testosterone)
64
what hormone promote bone reabsorbtion if levels are chronically too high
glucocorticoids
65
what vitamin activates osteoblasts
vitamin A
66
what vitamin promotes collagen production
vitamin C or ascorbic acid
67
what vitamin promotes the absorbtion of calcium/phosphate in the blood
vitamin D
68
a thin break in the bone caused by increased physical activity/load to the bone
stress fracture
69
a break in the bone caused by trauma
pathologic fracture
70
a broken bone that doesn't penetrate the skin
simple fracture
71
one/both ends of the broken bones are piercing the skin
compound fracture
72
stem cells in periosteum and endosteum
osteoprogenitor cells
73
what bone cells build bones and secrete osteoid
osteoblasts
74
what bone cells maintain bone, communicate the need for new bone
osteocytes
75
what bone cells break down bones
osteoclasts
76
where is hyaline cartilage found
the nose, trachea, larynx, articular joints, growth plates,
77
where is fibrocartilage found
vertebral disks, pubic symphysis, meniscus
78
where is elastic cartilage found
the epiglottis, the ear and ear canal
79
in adults, where does hematopoiesis occur
flat bones of the skull, the vertebral bones, ribs and sternum, the ossa coxae, the proximal ends of the humerus and femur
80
osteitis deformans
characterized by excessive bone reabsorption (osteoclasts) followed by excessive bone deposition (osteoblasts)
81
achondroplasia
abnormal conversion of hyaline cartilage to bone
82
rickets is caused by
a lack of vitamin D
83
bone scans can
detect bone pathologies faster than xrays can w/o as much radiation
84
bisphosphonates
interfere w/ osteoclast function and slow down bone loss increased risk of osteonecrosis
85
what are the 3 reasons women are more likely to get osteoporosis `
1. have less bone mass than men 2. lose bone mass faster and start losing it earlier in live 3. postmenopause no estrogen which helps prevent osteoporosis
86
chondroma
benign tumor from cartilage cells
87
chondrosarcoma
malignant tumor from cartilage cells
88
hyperostosis
excessive formation of bone tissue
89
osteogenesis imperfecta
brittle bone disease, affects collagen fiber distrobution/organization. occurs bc of impaired osteoblast function
90
osteoma
brenign tumor in lamellar bone often in jaw/skull
91
osteomalacia
vitmain D deficiency in adults, leads to demineralized bones (soft and bendy)
92
osteomyelitis
infection/inflammation of bone marrow and surrounding areas
93
osteosarcoma
most common and malignant type of bone sarcoma. comes from osteoblasts and attacks the ends of long bones