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00:17
1.
Muscle Physiology
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00:16
2.
Goals of the Lecture
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00:01
3.
Outlines_Background
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01:19
3.1
Characteristics & Functions of Muscle
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01:21
3.2
Morphological Classification of Muscle
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00:46
3.3
Muscle Type and Activity
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00:04
4.
Outlines_Skeletal Muscle
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00:07
4.1
picture of skeletal muscles
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00:00
5.
Outlines_architecture & structure
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01:18
5.1
Shapes of Skeletal Muscle
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03:39
5.2
Skeletal Muscle Action
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02:02
5.3
Question: Are skeletal muscle an orgarn?
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02:04
5.4
Architecture of Skeletal Muscle
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00:57
5.5
Architecture of Skeletal Muscle
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00:56
5.6
Architecture of Skeletal Muscle
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02:21
5.7
Structure of Skeletal Myofiber1
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01:27
5.8
Structure of Skeletal Myofiber2
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00:48
5.9
Structure of Skeletal Myofiber3
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00:29
5.10
Architecture of Skeletal Muscle
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01:07
5.11
Thick Filament1
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01:01
5.12
Thick Filament2
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00:50
5.13
Question: Do thick filaments connect to Z-line?
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00:23
5.14
Thick Filament3
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01:45
5.15
Thin Filament1
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01:55
5.16
Thin Filament2
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01:00
5.17
Structure of Sarcomere1
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05:02
5.18
Structure of Sarcomere2
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01:05
5.19
If we did cross-section of skeletal muscles, which area can be seen the following:1. Thick filaments only H zone2. Thin filaments only I band3. Both thick and thin filaments C zone
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01:13
5.20
Architecture of Skeletal Muscle
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00:54
5.21
Summary: Architecture of Skeletal Muscle
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01:23
5.22
Video
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01:00
5.23
Sensory Receptors of Skeletal M.
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02:15
5.24
Structure of M. Spindle
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01:11
5.25
Structure of M. Spindle
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01:09
5.26
Structure of M. Spindle
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00:18
5.27
Question: How to maintain the sensitivity of afferent (sensory) nerve
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02:12
5.28
Sensitivity Modulation(α-γ Coactivation)
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00:35
5.29
Skeletal Muscle Repair
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00:13
5.30
Architecture of Skeletal Muscle
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01:35
5.31
Sliding Filaments
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00:52
5.32
Example Question
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01:43
5.33
Example Question
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01:51
5.34
Example Question
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00:05
6.
Outlines: Process of Skeletal M. Contraction
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01:21
6.1
Video
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00:28
6.2
Phases of M. Contraction
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00:30
6.3
Process of Skeletal Muscle Contraction
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00:03
6.4
Process of Skeletal Muscle Contraction
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00:36
6.5
Neuromuscular Junction1
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00:50
6.6
Neuromuscular Junction2
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01:27
6.7
Question: Why injection of Botulinum toxin (肉毒桿菌素) can reduce facial wrinkles?
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00:20
6.8
Cosmetic Aesthetic Medicine
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00:38
6.9
Question: What is the purpose of converting electrical signal to chemical signal?
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00:36
6.10
Neuromuscular Junction3
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01:11
6.11
Neuromuscular Junction4
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01:45
6.12
Neuromuscular Junction5
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00:50
6.13
Neuromuscular Junction6
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00:16
6.14
Question: How to prolong the function of Acetylcholine at neuromuscular junction?
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01:33
6.15
Neuromuscular Junction Disease
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02:27
6.16
Process of Skeletal Muscle Contraction
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00:14
6.17
Events of M. Contraction
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01:16
6.18
Events of M. Contraction
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02:03
6.19
Molecular Mechanisms of Contraction
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04:50
6.20
Crossbridge Cycle1
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01:45
6.21
Crossbridge Cycle2
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00:34
6.22
Summary of Crossbridge Cycle
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01:22
6.23
Animation
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00:50
6.24
Summary: Process of Skeletal Muscle Contraction
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01:13
6.25
Process of Skeletal Muscle Relaxation
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01:40
6.26
Muscle Cramps
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00:02
7.
Outlines: Control of Skeletal M. Contraction
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00:09
7.1
Question: Can voluntary muscles produce involuntary movement?
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00:51
7.2
Skeletal Muscle Reflexes
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01:30
7.3
Monosynaptic Stretch Reflex
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01:33
7.4
The response of skeletal m. is always excitatory. How to inhibit the response of skeletal muscle?Reduce the excitability of neuronActivation of antagonist
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00:13
7.5
Disynaptic Reflex
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01:41
7.6
Reciprocal Innervation
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00:08
8.
Outline: Mechanics of Skeletal M. Contraction
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01:29
8.1
Types of Muscle Contraction
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00:27
8.2
Isotonic Contraction With Different Loads
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00:16
8.3
Load-Velocity Relation
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00:38
8.4
Question: Are all-or-none law applied for muscle fibers?
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01:25
8.5
Different Response of M. Fiber vs. Whole Muscle
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00:51
8.6
Motor Unit1
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01:15
8.7
Motor Unit2
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02:20
8.8
Motor Unit3
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01:36
8.9
Muscle Tone
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02:18
8.10
Frequency-Tension Relation1
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00:04
8.11
Frequency-Tension Relation2
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00:43
8.12
Muscle Force1
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00:44
8.13
Muscle Force2
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01:07
8.14
Length-Tension Relation1
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00:18
8.15
Question: Why the active tension decreased when the muscle length is shorter than the normal resting length?
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01:55
8.16
Length-Tension Relation2
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03:31
8.17
Muscle Fatigue
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02:55
8.18
Causes of Muscular Fatigue
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00:04
9.
Outlines: Energetics of Skeletal M. Contraction
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00:11
9.1
Question: What are the energy sources of skeletal muscle contraction?
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00:49
9.2
Energy for Contraction1
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00:41
9.3
Energy for Contraction2
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00:36
9.4
Question: What does ATP do for providing energy in skeletal muscle contraction?
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00:15
9.5
Functions of ATP in Skeletal-Muscle Contraction
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00:50
9.6
Energy Sources in Working M.
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02:56
9.7
Types of Skeletal Muscle Fiber1
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01:34
9.8
Types of Skeletal Muscle Fiber2
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01:12
9.9
Question: Why can skeletal muscles be divided into red muscles and white muscles?
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04:06
9.10
Types of Skeletal Muscle Fiber2
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01:28
9.11
Exercise Training on Adaptation of Muscle Fibers
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02:26
9.12
Exercise Training on Adaptation of Muscle Fibers
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02:22
9.13
Myofascial Pain
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00:09
10.
Goals of the Lecture
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00:01
11.
Outlines: Structural Characteristics of smooth muscle
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00:12
11.1
Smooth Muscle
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01:42
11.2
Structural Characteristics of Smooth M1
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01:49
11.3
Structural Characteristics of Smooth M2
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00:36
11.4
Structural Characteristics of Smooth M3
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01:09
11.5
Structural Characteristics of Smooth M4
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00:03
11.6
Structural Characteristics of Smooth M5
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00:34
11.7
Structural Characteristics of Smooth M4
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00:12
11.8
Structural Characteristics of Smooth M5
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00:53
11.9
Voltage-Gated Channels in Smooth M.
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00:04
12.
Outlines: Smooth Muscle Contraction & Relaxation
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00:32
12.1
Single Muscle Twitch
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02:09
12.2
Smooth Muscle Contraction
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00:51
12.3
Mechanisms of Smooth M. Relaxation1
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01:16
12.4
Mechanisms of Smooth M. Relaxation2
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01:29
12.5
Smooth M. Latch State
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01:29
12.6
Unique Mechanical Properties
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01:31
12.7
Difference in Contraction Mechanism Between Smooth M. & Striated M.
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00:05
13.
Outlines: Classification of Smooth Muscle
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00:18
13.1
Classification of Smooth Muscle
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01:12
13.2
Single-Unit Smooth Muscle1
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01:37
13.3
Single-Unit Smooth Muscle2
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02:05
13.4
Single-Unit Smooth Muscle3
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01:09
13.5
Multiunit Smooth Muscle1
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00:53
13.6
Multiunit Smooth Muscle2
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00:19
14.
Goals of the Lecture
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00:00
15.
Outlines: Cardiac Muscle
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00:05
15.1
Cardiac Muscle
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01:28
15.2
Cardiac Muscle
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02:18
15.3
Characteristics of the Cardiac M.
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00:53
15.4
Automaticity (Chronotropic effect)
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01:33
15.5
Conductivity (Dromotropic effect)
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01:05
15.6
Action Potentials of contractile cardiac cellsPhase 0: Rapid depolarization (Na+ channels open, Na+ in)Phase 1: Rapid, partial early repolarization (Na+ channels close)Phase 2: Prolonged period of slow repolarization (Ca2+ channels open, Ca2+ in; fast K+
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01:07
15.7
Excitability
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01:33
15.8
Contractility (Inotropic effect)
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02:01
15.9
Contractility
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00:43
15.10
Contractility
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00:40
15.11
Contractility
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00:16
15.12
Contractility
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03:32
15.13
Mechanism of Cardiac Muscle Excitation, Contraction, & Relaxation (Lusitropic effect)
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00:37
15.14
Question: If a drug has a positive inotropic effect on heart, which means this drug can increase heart’s heart rate conductivity contractility relaxation excitability
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01:10
15.15
Excitation Contraction: Cardiac vs. Skeletal M.
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00:12
16.
Goals of the Lecture
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00:47
17.
Comparison of Skeletal, Cardiac, and Smooth Muscle
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01:52
18.
Comparison of Skeletal, Cardiac, and Smooth Muscle
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02:34
19.
Comparison of Skeletal, Cardiac, and Smooth Muscle
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04:27
20.
Comparison of Skeletal, Cardiac, and Smooth Muscle