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Kinesiology > Nervous & Energy Systems > Flashcards

Nervous & Energy Systems Flashcards

1
Q

PNS Compromised of

A
  • 12 cranial nerves
  • 31 spinal nerves
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2
Q

Efferent

A

Leads things away

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3
Q

Afferent

A

Bring things towards (senses)

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4
Q

ANS Compromised of

A
  • Sympathetic (flight/fight)
  • Parasympathetic (calming)
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5
Q

Somatic NS

A

Sends info to CNS, skeletal muscle

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6
Q

Reflex Pathway

A
  1. Senses
  2. Sensory nerves
  3. Intermediate nerve
  4. Motor nerve
  5. Efferent organ
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7
Q

Types of Reflexes

A
  • Stretch
  • Postsynaptic
  • Proprioceptor system
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8
Q

Stretch

A

Single connection btwn primary afferent & motor neruons

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9
Q

Postsynaptic

A
  • Cross-extensor reflex: compensates w/opposing limb
  • Withdrawal
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10
Q

3 Energy Systems

A
  1. ATP-PC
  2. Glycolysis/Fermentation
  3. Cellular Respiration
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11
Q

ATP-PC Process

A
  • Uses stored ATP & phosphocreatine
  • PC + ADP = ATP + creatine
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12
Q

ATP PC Characteristics

A
  • Lasts 10 to 15 secs
  • No by product
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13
Q

Glycolysis lasts

A

Couple mins, short term

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14
Q

Cellular Respiration lasts

A

Long term

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15
Q

Muscles Types

A
  • Type 1
  • Type 2A
  • Type 2B
  • Can changes types
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16
Q

Type 1 Muscles

A
  • Slow twitch muscles
  • Long term
  • Dark red
  • Lots of myoglobin
17
Q

Type 2A

A
  • Fast oxidative
  • Fast, strong contraction
  • Medium long term
  • Red colour
18
Q

Type 2B

A
  • Fast glycolytic
  • Short, fast contractions that fatigue quick
  • Short term
  • Pale in colour
  • High lvls of myosin ATPase
19
Q

Conductive Zone

A

Transports air to lunge

20
Q

Respiratory Zone

A

Gas exchange

21
Q

Purpose of SA node

A

Pacemaker (R atrium)

22
Q

Purpose of AV node

A

Pass electrical signal from atria into ventricles

23
Q

Stroke Volume

A
  • Vol of blood ejected by L ventricle per min
  • mL/min
24
Q

Cardiac Output

A
  • L/min
  • (HR)(SV)
25
Q

VO2 Max

A

O2 consumption used for metabolic processes

26
Q

a-VO2 Max

A

Diff in O2 in blood btwn arteries and veins

27
Q

Oxygen States during Exercise

A
  1. O2 Deficit
  2. Steady State of O2 delivery: take times for body to adjust
  3. EPOC: extra O2 needed to restore systems
28
Q

How does training prolong lactic threshold

A
  • Increases VO2
  • Improves ventilation
  • Heart more effecient
29
Q

Breathing Mechanism

A
  • Inhale: diaphragm contracts, cavity expands
  • Exhale: diaphragm relaxes, cavity shrinks
30
Q

Ventilation

A
  • Air moved by lungs in 1 min
  • Tidal Vol: Vol of air for each breathe
  • Resp Frequency: # of breaths taken per min

Kinesiology (2 decks)

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