week 4 Flashcards by miah jensen

wher is blood frist reviec form body

right atrium - pumps to lungs

How well did you know this?

Not at all

Perfectly

does height go slow or fast , when is the growth spurt

grows rapdily
growths spurt in 9-16 (adolescence)

How well did you know this?

Not at all

Perfectly

wht does heart grow in. porpption ro

bloos volume

How well did you know this?

Not at all

Perfectly

last thing to develop in prenatal lung growth

alveolar -capillary interface

How well did you know this?

Not at all

Perfectly

In lung growth ___ form in eraly prenatal development

lung buds

How well did you know this?

Not at all

Perfectly

what happens in postnatal devlopemt of lungs? after age 8?

rapid grwoth of alveoli

after 8 in later childgoo d- they grow bigger and chest wall grows to maturity

How well did you know this?

Not at all

Perfectly

what is the sex differnce in terms of aerobic pwoer/vo2max

vo2max same for male and female in childhood. At arounf 12 (adolescence). sex differnces occur

Vo2 continues to icnrease in males till 18
conitnues to incrase in females till 14

declines after

How well did you know this?

Not at all

Perfectly

what happens to vo2max thruout childhood.

it increases

How well did you know this?

Not at all

Perfectly

most of indivividual differnces in vo2 max are because of___

body mass

How well did you know this?

Not at all

Perfectly

what happens to anerorbic power and why? what 2 factos inmapct this

incrases over itme - glycoytic capcaity icnrases
acidosis maximum incrase
s
femal

How well did you know this?

Not at all

Perfectly

sex differcne i anaerobic power

emlaes les spowet han males

How well did you know this?

Not at all

Perfectly

sex differnc in hear rate. Ith age?

female 5bpm higher tahn males (RHR). RHR increases with age

How well did you know this?

Not at all

Perfectly

what happens to CO and SV ith age. Sex diffeernce

icnrease with age . Males genreally higher than females

How well did you know this?

Not at all

Perfectly

what happens to vital capcaoty an pulm ventialation with age. Sex diff.

icnrase. with age

males and females incrase until pubery
males have largger valeus after puberty

How well did you know this?

Not at all

Perfectly

pemnt of lungs

How well did you know this?

Not at all

Perfectly

explain the differnc ein thermoregualtion in childrean and adults

chidlren craete more hat sot olerate it less

density of sweat glands decrease as we grow - adults have a greateer output than children

How well did you know this?

Not at all

Perfectly

hemoglbin grows at same rate as ____ and ____

body mass an dblood volume

How well did you know this?

Not at all

Perfectly

when do sex differnces in blood growth show up?

males more blood volume

How well did you know this?

Not at all

Perfectly

when does basal metabloc rate begin to delcine? why?

aftet infancy - old age
- since major orgeans decrsae in size comaprred to rest of bod

How well did you know this?

Not at all

Perfectly

what happens to basal metabolic gwoth?

decreases after infancy due to major organ propotion to rest of boyd

How well did you know this?

Not at all

Perfectly

whta re the sex fdiffernces

How well did you know this?

Not at all

Perfectly

when does blood growth start - progres?

2 weeks prenatl - increaes rapdi to birht and graduallt in childhood and adolescence

How well did you know this?

Not at all

Perfectly

what are the sex differnces for BMR?

amels higher than females ar all aeges
- fat is less matbolically acitve then lean body

how does musc strength chang ewith age and when does it peal

icnrease with age for bith sexes an dpeaks at 25-29

what contibutes to most of toal strenghtleg contibute to 60% of total strength

leg strength

what happens in growth ofmsuc endyrance? sex diff?

chidlren get better (eg psuh ups) over time after puberty males sitll icnrease while females level off

what are better indicaotrs f felxibility?

activily levls better than. age

flexibilit over tlifespan?

icnrease thru childhood, males and femles delcine around ro beyong puebrty activity level more of indicator and demales mroe fleixble at all ages

what happens to felxibility in adolescenc

decreases

best indicator of flex ibility

activity levls

when do phsydiolofical maturity and motor performcane peak? significant drop occur ate age ____

25 to 30 at age 70

Residual lung volume ___ with advanced aging

increase

what type of msucle fibres decrease in advanced againg?

tpe II

bsaic structures and fucntions of heart and lungs develop ____ and ____ grow

preantally, slowly

brain development: sequenc eof events

celll prolife - migration - itnergration +diff - myelination - cell death

explain growth sequence form infancy to agin?

infancy - rapdi grwoth childhood - steay, consisten adolscence - major spurt during pubert - diff between maeles and females adulthood - grwoth slows, body comp cahgnes, many adults gian weight

name the three periods of prenatal devellopment. explain the time frame and whta happens

germinal 0-2, comception, ell divsion emrbyonic - organogensis, mtoro skill +cogntiive func foundations tetarogen expose - congenital disorders fetal - week 8- birth

ecplain body pproptions over time

At birth: * Head is large * Head, shoulders, and hips close to the same width * Trunk is larger than legs * Throughout childhood: * Boys and girls grow similarly, cephalocaudal and proximodistal growth * Legs and trunk ratio steadily declines * Puberty: * Boys grow shoulders more than girls, Girls grow hips more than boys * Ratio between trunk and legs very low * At adulthood: * Head is a third of shoulder width. * Shoulders are usually wider than the hips. * Sitting height is about 50% of total heigh

at birth head, shoudler and hips are ___ trunk is ____ legs

all same width lerger tahn elgs

what 2 things happens to body roptoiions in childhood

trunk leg ratio decreases boys and gorls grow simialrly cephalocaudal and proximodistal

what happens to body proportions over time

boys grow shoulders , girls grow hips mroe ratio ebetween trunk and legs trunk and leg ratio very low

in adulthood head is abotu ____ shoudler width

1/3

in adulthood how to shoudlers and hips comparte

shoulders are wider than hips

sitting heigh is about ____ total height

50%

name some sex chanfges in growth that happen during pubert. compare and contrast for male and female

Girls (10 - 13 years old) * Start puberty earlier than boys * Estrogen increase 10-fold * Taller than boys initially * Reach skeletal maturity earlier * Less weight gain than boys * Body fat continues to gain * No sig. gains in skeletal muscle tissue Boys (12 – 15 years old) * Start puberty later than girls * Testosterone increase 10-fold * Taller than girls by end * Greater skeletal maturity by end * Greater weight gain than girls * Body fat slows down * Sig. gains in skeletal muscle tissu

when does puberty occur for girls vs boys

girls - 10-13 boys: 12-15

name som changes in physiology of adutls vs chlidlren ?

* Muscle strength and endurance increasesShaikh, 2025 Physiology: Adults vs Children Children * Small heart and lung size * Low stroke volume, cardiac output * More fatigue from working * Low anaerobic capacity * Less tolerant of heat stress Adults * Larger heart and lung size * Larger stroke volume, cardiac output, lung volume, more efficient breathing * Less fatigue from working * Higher anaerobic capacity * More tolerant of heat stress * Muscle strength and endurance increases

who are more tolerant of heat stress, adutls or children

adults more tolerant children less tolratn

children experience ___ fatigue fromworking compate dot adultes

who has higher anaeerbic capcity ?adults or children?

adults

name some sex changes in physiologu between girls and boys. What age do these changes begign?

age 10 FEMALES aerobic pwoer grows till 14 lower VO2max, CO, SV, Blood volume, vital capacity

after age 10 females have a ___vital capcoty while boys have a ___

lowe vital cpacity, boys have higher