Final Flashcards

(79 cards)

1
Q

Basic unit of muscle

A

sarcomere

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2
Q

Each muscle fiber contains several hundred to thousands ________

A

myofibrils

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3
Q

Sequence of muscle bands in a sarcomere

A

Z, I, A, H, M, A, I, Z

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4
Q

Thin muscle filaments

A

actin

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5
Q

Thick muscle filaments

A

myosin

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6
Q

Two thirds of all skeletal muscle is ________

A

myosin

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7
Q

Whatis it called when the myosin cross bridges are activated, bind with actin, resulting in a conformational charge in the cross bridge, which causes the myosin head to tilt and to drag the thin filament towards the center of the sarcomere?

A

Sliding filament theory

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8
Q

substrate for glycolysis

A

glucose

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9
Q

substrate for kreb’s cycle

A

Acetyl- CoA

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10
Q

This diagram details out the delivery of oxygen based on PaO2

A

oxygenhemoglobin curve

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11
Q

If EDV increases, then ______ __________ should also increase

A

Stroke volume

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12
Q

VO2= Q*a-vo2difference

What equation?

A

Fick equation

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13
Q

Primary source of heat loss during exercise

A

Evaporation

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14
Q

Non steroid hormones are not _________ ________

A

Lipid soluble

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15
Q

How many ATP ate net from glycolysis?

A

2

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16
Q

Name of pressure volume diagram that explains how the heart valves open and close to deliver blood.

A

Wigger diagram

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17
Q

involuntary muscle contractions experienced when exposed to the cold

A

shivering

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18
Q

the process of breakdown a fatty acid and making acetyl coa

A

Beta oxidation

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19
Q

cessation of sweating is a symptom of ________ ______

A

Heat stroke

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20
Q

a 400m run primarily uses __________ to generate ATP

A

Glycolysis

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21
Q

Muscular ___________ is the ability to produce force over a series of contractions at a submaximal load.

A

Endurance

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22
Q

training in a manner that mimics your sport or actions completed at work

A

Specificity

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23
Q

steroid hormones are derived from

A

Cholesterol

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24
Q

The F in FITT stands for

A

Frequency

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25
these are located in the aortic arch and carotid bodies
Baroreceptors
26
altitude sickness that occurs >4300m, symptoms include confusion, lethary, ataxia, and even death.
HACE
27
condition where core temp
Hypothermia
28
condition where you should not rewarm the tissue until there is no further risk of freezing
Frostbite
29
This principle refers to the atrophy associated with ceasing workouts and becoming sedentary
Reversibility
30
training aerobically will lead to ________ size and number of mitochondria
Increased
31
When a novice begins lifting, the first gains in strength come from _____________ adaptations
Neural
32
altitude sickness likely caused by clot formation in pulmonary circulation
HAPE
33
ADH and ____________ are key hormones involved in preventing dehydration
Aldosterone
34
long term exposure to altitude causes the relaese of ____ which increase formation of red blood cells
EPO
35
the ____________ nervous system keeps resting heart rate low
Parasympathetic
36
at altitude kidneys excrete more ___________
Bicarbonate
37
Training __________ will lead to hypertrophy of type II fibers
Anaerobically
38
If I break down my season into macro and meso cycles in order to peak at the right time, I am practicing ___________
Periodization
39
this concept states that you must challenge the body in order to continue to see improvements in performance
Overload
40
PFK is the _______ __________ enzyme of glycolysis
Rate limiting
41
After 6-8 weeks of lifting ___________ become the major factor contributing to strength gains.
Hypertrophy
42
Kreb's cycle takes place here
Mitochondria
43
training aerobically will lead to increased ____________ involved in aerobic metabolism
enzymes
44
a decrease in __________ would allow the arotic valve to stay open longer and lead to increased stroke volume
Afterload
45
_________ altitude sickeness occurs 6-48 hours upon arrival to altitude. symptoms include headache, nausea, dyspnea
Acute
46
Muscular __________ is the ability to generate maximal force 1 time
Strength
47
The lactate threshold and the ventilatory threshold occur at approximately the ______ time
same
48
At altitude, one of the first physiologic responses is _______
Hyperventilation
49
example of a non-steroidal hormone involved in glucose regulation
Insulin
50
The 100m sprint is primarily using the ______ energy system
ATP-PC
51
the __________ nervous system activation stimulates an increase in HR and BP
Sympathetic
52
how many ATP you get from FULLY oxidizing a molecule of glucose?
36
53
glycolysis takes place here
Cytosol
54
released from sarcoplasmic reticulum as a result of a successful action potential
Calcium
55
The P wave represents _______ depolarization
Atrial
56
Training aerobically increases size of ____ _______
Type I Fibers
57
Increasing _____ depends on adaptations in maximal stroke volume and maximal (a-v)O2 difference?
VO2 max
58
Increased capillarization, oxidative enzymes, and myoglobin content occurs when training _________
aerobically
59
RER decreases at submaximal activities when training ___________
aerobically
60
A low RER relies more on ______. | A high RER relies more on _________
Fats | Carbs
61
_______ gain can occur without hypertrophy
Strength
62
Transient muscle ________ is the temporary enlargement of muscle resulting from edema right after exercise.
hypertrophy
63
Normal intrinsic inhibitory mechanism
Golgi Tendon organs
64
Protein synthesis increases after or before exercise?
After
65
At rest _______ and _______ are the primary methods for eliminating the body's excess heat.
radiation and convection
66
Sea level is less than _____m Altitude is equal or greater than ____ High Altitude is between ______ and ________
500m 1,500m 3,000-5,500m
67
At altitude exposure: pulmonary diffussion is ________. Oxyhemoglobin curve shifts ______ Gas exchange ________ at muscles
Not limited left decreases
68
Short term at altitude: plasma volume and hematocrit ______ in a few hours. Urine production also _______.
Increases | increases
69
Long term at altitude: | red blood cell count and hematocrit _______
Increases
70
At altitude exposure: | cardiac output and SNS activity _______ at rest and submax for short term adaptation..
Increases
71
A altitude exposure: | Qmax and VO2 max ________
Decreases
72
At altitude exposure: dehydration occurs ______. appetite _________. metabolism ________.
faster decreases increases
73
Live high training low: | permits passive ________ to altitude.
acclimation
74
PCr catalyzed by ___________
creatine kinase
75
ATP-PC yields ___mol ATP
1
76
End products of glycolysis are ____ and _______
pyruvate and lactate | 2 NADH
77
Krebs cycle makes: ___ NADH ___ FADH ___ ATP
6 2 2
78
1 glocogen = ___ ATP
37
79
What equation? | =VCO2/VO2
RER