Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

KNS > Exam 2 (physiology of physical activity) > Flashcards

Exam 2 (physiology of physical activity) Flashcards

1
Q

Myofibrils contain what?

A

sarcomeres

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Sarcomeres are what?

A

smallest contractile unit of a muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Actin?

A

thin filament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Myosin?

A

thick filament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Muscles must be what?

A

depolarized

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what had happen for to be muscle contraction to occur?

A

calcium and atp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Type I fibers?

A

slow-twitch fibers
slow-oxidative fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Type IIa fibers?

A

intermediate fibers
fast-oxidative glycolytic fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Type IIx fibers?

A

Fast-twitch fibers
Fast-glycolytic fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Type IIx fibers?

A

Fast-twitch fibers
Fast-glycolytic fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Training improves what?

A

strength and size of muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Fiber hypertrophy?

A

Hypertrophy refers to an increase in the size of individual muscle fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Fiber hyperplasia?

A

Hyperplasia refers to an increase in the number of muscle fibers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Humans consume what and don’t do what?

A

consume oxygen and do not produce oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the measure of the body’s maximal capacity to consume oxygen?

A

VO2max

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Frick equation?

A

VO2max= HRmax X SVmax X (a-v)O2 diff

17
Q

Site of gas exchange?

A

O2 in CO2

18
Q

The respiratory system does not limit what?

A

exercise

19
Q

Hot environments challenges?

A

dehydration and increase in core temperature

20
Q

Training increases what?

A

blood volume and improves thermoregulatory control

21
Q

Sauna and hot tubs?

A

mimics the effects of exercising in the heat –> physiology and health

22
Q

Cold environment challenges?

A

needing appropriate clothing
optimal running temperature is around 50 degrees
respiratory system warms & humidifies the air

23
Q

Exposure to the cold can lead to what?

A

physiological adaptions that allows us to better tolerate the cold

24
Q

Common tools for an exercise physiologist

A

Metabolic cart: O2, CO2, spirometry
Muscle biopsy
ECG
Accelerometer
Electromyography
Environmental chamber
Ultrasound

25
Q

The study of special population?

A

Children
pregnant women
elderly
overweight
diabetics
people with sickness

KNS (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions