IBSS 1540 Exam 4 pt 2 Questions with Correct Answers 100% Verified By Experts| Latest
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What happens to the muscle fiber content during aging? as you age, the number of fibers in
each muscle will decline
During aging, does muscle mass or strength decline more rapidly? strength decreases more
rapidly
Why is strength decreased in aging? there are decreased cross bridge kinetics, which slows
contractile velocity and decreases the amount of force produced
What is the effect on muscles during aging if an individual's activity level is low? What is the
consequence? they will experience a reduction in muscle contractile protein, which can
further contribute to decreased muscle mass and strength
During aging, does muscular power or muscular strength decline more rapidly? muscular
power
Why does muscular power decline durning aging? due to slowed cross bridge kinetics within
muscles
What is muscular power? work per unit time
an 88 year old female presents to the office for a routine dental exam. She bumps against a
desk nd begins to lose her balance. A factor associated with aging that is most likely to be
contributory to her unsuccessful attempt at preventing her fall is a reduction in :
A. the excitability threshold of skeletal muscle alpha motor neurons
B. upper body muscular power
C. the time needed for the brain to recognize and process the incoming vestibular and muscle
sensory information B
,What happens to the excitability threshold of skeletal muscle during aging? it increases
What happens to reaction time during aging? it increases
What happens to the rate of bone loss in women during post-menopause? there is initially a
rapid increase in the rate of bone loss, but it eventually equalizes to what is normal for age
What happens to the bone density of men as they age? they los bone density
How can you identify age related decreases in bone density on imaging? when there are less
dark spots on the film, which means that there is less mineralization
What are the two types of osteoporosis that are associated with aging/ type 1, which is
related to menopause, and type 2, which is not
What is the main cause of the excessive bone respiration rate that occurs in type I
osteoporosis? low estrogen states caused by menopause
What are the most common sites of fracture in type I osteoporosis? vertebrae and the distal
radius
What causes reduction in bone formation in cases of type II osteoporosis? impaired
osteoblast function, vitamin D deficiency, and decreased estrogen and androgen levels
Which hormone is usually elevated in cases of type II osteoporosis? parathyroid hormone
What is a common site of fracture in type II osteoporosis? the neck of the femur
, What are two main factors that contribute to bone fracture during aging? reduced bone
mass and poor bone architecture
A 58 year old male presents for an endodontic consult. Medical history is positive for stage 4
CKD due to polycystic kidney disease. This patient's risk for developing type II osteoporosis and
renal osteodystrophy is above average due to an elevated liklihood of
A. vitamin D3 deficiency
B. erythropoietin deficiency
C. hypophophatemia
D. hypoparathyroidism A
What is used as a marker to evaluate cardiorespiratory fitness during agent? VO2 max, or
maximal oxygen consumption
What are the consequences of low levels of cardiorespiratory fitness during aging? it can
increase the risk of premature mortality and lead to a loss of independence
What happens to endurance performance with age? it decreases
What happens to VO2 max with aging? it peaks around age 30, then declines continuously
as a person ages
Until which age is large muscle performance well-maintained? 60-70
What is the relationship between cardiovascular disease and aging? the prevalence
increases with age, and is very high in individuals above 80 years old
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What happens to the muscle fiber content during aging? as you age, the number of fibers in
each muscle will decline
During aging, does muscle mass or strength decline more rapidly? strength decreases more
rapidly
Why is strength decreased in aging? there are decreased cross bridge kinetics, which slows
contractile velocity and decreases the amount of force produced
What is the effect on muscles during aging if an individual's activity level is low? What is the
consequence? they will experience a reduction in muscle contractile protein, which can
further contribute to decreased muscle mass and strength
During aging, does muscular power or muscular strength decline more rapidly? muscular
power
Why does muscular power decline durning aging? due to slowed cross bridge kinetics within
muscles
What is muscular power? work per unit time
an 88 year old female presents to the office for a routine dental exam. She bumps against a
desk nd begins to lose her balance. A factor associated with aging that is most likely to be
contributory to her unsuccessful attempt at preventing her fall is a reduction in :
A. the excitability threshold of skeletal muscle alpha motor neurons
B. upper body muscular power
C. the time needed for the brain to recognize and process the incoming vestibular and muscle
sensory information B
,What happens to the excitability threshold of skeletal muscle during aging? it increases
What happens to reaction time during aging? it increases
What happens to the rate of bone loss in women during post-menopause? there is initially a
rapid increase in the rate of bone loss, but it eventually equalizes to what is normal for age
What happens to the bone density of men as they age? they los bone density
How can you identify age related decreases in bone density on imaging? when there are less
dark spots on the film, which means that there is less mineralization
What are the two types of osteoporosis that are associated with aging/ type 1, which is
related to menopause, and type 2, which is not
What is the main cause of the excessive bone respiration rate that occurs in type I
osteoporosis? low estrogen states caused by menopause
What are the most common sites of fracture in type I osteoporosis? vertebrae and the distal
radius
What causes reduction in bone formation in cases of type II osteoporosis? impaired
osteoblast function, vitamin D deficiency, and decreased estrogen and androgen levels
Which hormone is usually elevated in cases of type II osteoporosis? parathyroid hormone
What is a common site of fracture in type II osteoporosis? the neck of the femur
, What are two main factors that contribute to bone fracture during aging? reduced bone
mass and poor bone architecture
A 58 year old male presents for an endodontic consult. Medical history is positive for stage 4
CKD due to polycystic kidney disease. This patient's risk for developing type II osteoporosis and
renal osteodystrophy is above average due to an elevated liklihood of
A. vitamin D3 deficiency
B. erythropoietin deficiency
C. hypophophatemia
D. hypoparathyroidism A
What is used as a marker to evaluate cardiorespiratory fitness during agent? VO2 max, or
maximal oxygen consumption
What are the consequences of low levels of cardiorespiratory fitness during aging? it can
increase the risk of premature mortality and lead to a loss of independence
What happens to endurance performance with age? it decreases
What happens to VO2 max with aging? it peaks around age 30, then declines continuously
as a person ages
Until which age is large muscle performance well-maintained? 60-70
What is the relationship between cardiovascular disease and aging? the prevalence
increases with age, and is very high in individuals above 80 years old
