Brainscape's Knowledge GenomeTM

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


See full index

a&p i > Ch 10 Muscular Tissue > Flashcards

Ch 10 Muscular Tissue Flashcards

1
Q

What is the function of the muscular system?

A
  1. Produce movement
  2. Stabilize Body Positions
  3. Heat Production
  4. Moves substances through the body
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Why type of muscle is voluntary and striated

A

Skeletal Muscle

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

what type of muscle is inovluntary and nonstriated

A

Smooth muscle

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

what type of muscle is involuntary and striated

A

Cardiac Muscle

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

what are the 4 special properties of the muscular tissue

A
  1. Electrical Excitability
  2. Contractility
  3. Extensibility
  4. Elasticity
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

This location of the muscle tissue is the outer layer and encircles the enitre muscle

A

Epimysium

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

This muscle tissue surrounds groups of 10 to 100 muscle fibers and creates muscle facicles

A

Perimysium

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

This muscle tissue seperates each individual muscle fiber inside the fascicles

A

Endomysium

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

This muscle tissue holds muscles with similar functions together

A

Fascia

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

This muscle tissue helps attach muscles to bones and attaches to the periosteum

A

Tendon

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

What is the plasma membrane of the muscle fibers called

A

Sarcolemma

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

This muscle fiber component tunnels leading into the muscle fiber from sarcoplasm

A

T Tubules

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

This muscle fiber component is the cytoplasm of muscle fiber

A

Sarcoplasm

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

This muscle fiber component is the contractile unit of skeletal muscle

A

Myofibrils

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

This muscle fiber component is a fluid filled sac that surrounds myofibrils and contains Calcium

A

Sarcoplasmic Reticulum

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

This muscle fiber component contains small protein structures inside myofibrils, ex. Actin, Myosin

A

Filaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

This muscle fiber component is a functional unit of skeletal muscles

A

Sarcomere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

This component of the sarcomere seperates the sarcomeres

A

Z Disc

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

This component of the sarcomere is a thick filament completely and some of the thin filaments

A

A Band

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

This component of the sarcomere is a thin filament only

A

I Band

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

This component of the sarcomere is a thick filament only

A

H Band

21
Q

This component of the sarcomere is the middle of the sarcomere

A

M Line

21
Q

What are the two contractile proteins?

A
  1. Actin
  2. Myosin
22
Q

What are the regulatory Proteins?

A
  1. Tropomyosin
  2. Troponin
23
Q

4 Step Process for sliding filaments

A
  1. Myosin Head is positioned through ATP Hydrolysis
  2. Calcium binds with troponin which then removes tropomyosin away from mysoin, actin now binds with myosin
  3. Power stroke
  4. Actin detaches from mysin and tropomyosin reattaches
24
Q

What are the 4 steps of the neuromuscular Junction?

A
  1. Release of Acetycholine (ACh)
  2. Activation of ACh receptors
  3. Action potential is produced
  4. Termination of ACh activity
25
Q

What happens during the release of ACh

A
  • Stimulation of the nerve causes an electrical signal to go to the nerve ending
  • Vesicles in the nerve ending contain ACh with its release
26
Q

What happens during the activation of ACh receptors?

A
  • ACh fills space and receptors of muscle fibers (motor end plate)
  • The binding causes ion channels to open
  • Sodium floods in
27
Q

what happens during action potential production?

A
  • as NA+ triggers action potential, the electrical signal moves along sarcolemma to the T Tubules, which leads to the sarcoplasmoc reticulum releasing Ca++
28
Q

what happens during the termination of ACh activity?

A

Acetylcholinesterase breaks down ACh so receptors are inactivated, and sodium stops flooding in and stops action potential

29
Q

how does creatine phosphate make ATP

A
  • Excess ATP transfers phosphate group to creatine (stores)
  • Then releases Phosphate group to ADP, creating ATP
30
Q

what is the first source of ATP?

A

Creatine phosphate

31
Q

During glycoloysis/krebs cycle glucose is broken down into what?

A

2 pyruvic acid molecules and 2 ATP molecules

32
Q

pyruvic acid + without oxygen =

A

Lactic Acid

33
Q

pyruvic acid + oxygen =

A

aerobic respiration (kreb cycle)

34
Q

Electron Tranport chain creates how many ATP molecules

A

30-32 per glucose

35
Q

Electron transport chain creates ATP fast or slow?

A

Slow

36
Q

What Type of contractile activity involves this

 Sustained muscle contraction
 No time for relaxation
 Plays a role with posture

A

Tetanus

37
Q

What type of Type Contractile Activity involves this

 Brief contraction of all muscle fibers of a motor unit by a single stimulus
 Not very useful for accomplishing things

A

Twitch Contraction

38
Q

Type of Contractile Activity that is a

Normal state of partial muscle contraction

A

Muscle Tone

39
Q

this type of muscle contraction has an equal tension

A

Isotonic

40
Q

This type of muscle contraction shortens the muscle while contracting

A

Concentric

41
Q

This type of muscle contraction lengthens the muscle while contracting

A

Eccentric

42
Q

This type of muscle contraction is equal in length

A

Isometric

43
Q

This type of muscle fiber is :
Dark red
Slow Twitch
Resistant to fatigue

A

Slow Oxidative

44
Q

This type of muscle fiber is :
Dark red
Faster than slow oxidative
Mildly resistant to fatigue (walking and sprinting)

A

Fast Oxidative-Glycolytic

45
Q

This type of muscle fiber is :
white in color (lacks myoglobin)
Strong, quick contractions
Very little endurance (weight lifting)

A

Fast Glycolytic

46
Q

This type of muscle use increases the muscle size due to overuse of the muscle

A

Hypertrophy

47
Q

This type of muscle use is when the muscle gets smaller from not being used (wastes away/being in a cast)

A

Atrophy

48
Q

This type of autoimmune disease damages the Nerve Muscular Joint receptor sites, impairs muscle contraction that leads to fatigue and weakness

A

Myasthenia Gravis

49
Q

This type of autoimmune disease is most common in boys due to the mutated gene on the X chromosome- life expectancy is 20 yrs old

A

Muscular Dystrophy

a&p i (13 decks)

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