Kin 3070 Exam 1 Flashcards

1
Q

Define Physiology

A

The study of the functions of organisms

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

Define Homeostasis

A

The maintenance of your body’s internal environment

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

Define Exercise physiology, environmental physiology, and Sport physiology.

A

Exercise Physiology is the study of how the body’s structures respond to exercise.

Environmental physiology is the study of the effects of the environment on the body’s functions.

Sport physiology is the application of concepts developed by exercise physiology to a sport.

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

The first physiology textbook was published by who, and when?

A

De Fascius, Claudius Galen in 100 AD.

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

What were the laws of health in the first physiology textbook?

A

breathe fresh air, eat proper foods, drink the right drinks, exercise, get adequate sleep, have a daily bowel movement, and control your emotions.

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

What is the title, release date, and author of the first exercise physiology textbook.

A

1889, it was called Physiology of bodily exercise, and it was written by Fernand LaGrange.

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

Who founded the Harvard Fatigue Lab? Who was the Director?

A

The Harvard Fatigue Lab was founded by Lawrence J Henderson. The director was David Bruce Dill (D.B Dill).

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

What was the main focus of the Harvard Fatigue Lab?

A

The focus of the Harvard Fatigue lab was to study the human movement and the effects of environmental stress on exercise. It is the root source for most contemporary exercise scientists.

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

Who are these scientists and what are they known for?

Eric Hohwu-Christensen
Per Olof Astrand
Jonas Bergstrom

A

These are Scandinavian scientists who are prominent in exercise physiology.

Eric Hohwu-Christensen was a Scandinavian scientist who published five research studies in the late 1930’s on carbohydrates and fat metabolism.

Per Olof Astrand conducted studies on physical fitness and endurance capacity during the 1950’s and 1960’s.

Jonas Bergstrom reintroduced the biopsy needle in 1966 to study human muscle biochemistry.

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

The early measurements of the Harvard Fatigue lab consisted of what?

A

The early measurements of the Harvard Fatigue Lab consisted of collecting expired air in a sealed bag known as a Douglas bag. A sample of gas from the Douglas was measured for oxygen and carbon dioxide using a chemical gas analyzer.

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

Who is Sid Robinson and what is he known for?

A

Sid Robinson was an exercise physiology scientist affiliated with the Harvard fatigue lab, he is well known for extensive study of Vo2 max, he helped to define the term.

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

Peter Karpovich helped to do what?

A

introduce physiology to physical activity

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

Thomas K. Cureton helped to establish a rationale for using exercise to promote a what?

A

A Healthy Lifestyle

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

How did the emphasis of the HFL shift in the 1930’s?

A

The great depression hit and using the lab for more practical reasons was emphasized. The HFL started to focus on industrial activity, and worker productivity and studying environmental stress due to world war 2 and war veterans.

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

What is an ergometer? List some examples.

A

An ergometer is a device that measures work of some kinds, most common examples are treadmills and stationary bikes.

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

What are some factors that can influence chronic and acute responses to exercise?

A

Genetics, diet, sleep, hydration, temperature, time of day, altitude, humidity, age, gender, stress, anxiety. You can use heart rate trackers, indoor facilities with temperature regulators, sleep monitors, etc.

17
Q

Plasmalemma is?

A

The cell membrane of the muscle cell, it fuses with the tendon, conducts action potential, maintains PH levels, and transports nutrients.

18
Q

Satellite cells are?

A

Involved in muscle growth and development, and they aid in response to injury immobilization and training.

19
Q

Sarcoplasm serves as what of a muscle cell?

20
Q

Transverse Tubules serve as?

A

Extensions of the plasmalemma and carry action potential deep into muscle fiber.

21
Q

The Sarcoplasmic reticulum stores what?

22
Q

Myofibrils make up what?

A

Muscle fibers

23
Q

Sarcomeres are what?

A

Sarcomeres are basic contractile elements of skeletal muscle, they look like links

24
Q

What is Titan?

A

Titan mainly holds myosin in place, it’s spring shaped and is one of the largest proteins in the body. Calcium binds to titan

25
How does a muscle contraction occur?
Muscle fiber contraction starts in the brain, your brain says I need to move something so it sends a signal through a motor neuron through the spinal cord and it goes into the muscle and releases Acetylcholine, then it binds to receptors on the plasmalemma and goes through the T tubules deep into the muscle fiber which then releases calcium from the sarcoplasmic reticulum, then calcium binds to troponin which releases the myosin binding site, then myosin binds to actin which causes a power stroke.
26
ATP causes the myosin heads to do what?
ATP causes the myosin heads to detach from the actin. The ATP then becomes ADP
27
What zones change length during a concentric contraction on a sarcomere?
The H zone gets smaller during muscle contraction, The I band gets closer together, and the Z disk gets smaller. The M line does not change.
28
ATPase causes?
ATPase causes catalysis during the hydrolysis of atp.
29
Type 2 fibers have more developed what?
Sarcoplasmic Reticulum
30
When an Action Potential ends what happens to a muscle?
When an Action Potential ends the sarcoplasmic reticulum stops releasing calcium which stops contraction. Calcium is then pumped back into the ST and is stored until the next action potential. Without calcium being pumped out of the SR troponin and tropomyosin return to the actin so power strokes cannot happen.
31
What type of fiber has more mitochondria?
Type 1 fibers have more mitochondria than type 2.
32
-Muscle fibers reach peak power at
20% of peak force
33
Fibers per motor neuron for muscle fiber types include:
Type 1 have 300 or less fibers, type 2 have 300 or more fibers.
34
The contraction speed for type 1 fibers and type 2 fibers are?
The contraction speed for type 1 fibers is 110ms, and for type 2 it's 50ms.
35
Type 2 fibers have more developed what?
Sarcoplasmic Reticulum
36
Training can induce small change in fiber types, how much?
About 10%
37
Review All Images in notes!
Review All Images in notes!
38
Review All Images in notes!
Review All Images in notes!