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45 Cards in this Set

  • Front
  • Back
What does CSF stand for?

Cerebrospinal Fluid

Where is Cerebrospinal Fluid produced?

Choroid Plexus in ventricles

(Leaves through 4th ventricle)
(Enters subarachnoid space)

Superior portion of the brain?
(Make up over 80% of brain mass)

Cerebrum (Cerebral Hemispheres)


These muscles are primarily attached to bones or skin.

Skeletal muscle

These muscles are striated / "voluntary"

They are also multinucleate

Skeletal muscle

These muscles are found in the heart

Cardiac muscle tissue

These muscles are partially striated / "involuntary"

Cardiac muscle tissue

This muscle group has visceral organs and structures / blood vessels

Smooth muscle tissue

This muscle group is non striated / "Involuntary"
is also 40%-50% of body weight

Smooth muscle tissue

What four basic properties do all muscle tissue have?

Excitability
contractibility


extensibility


elasticity

(Conductivity in cardiac muscle)

What is needed for muscle contraction?

Rich blood supply
Oxygen
nutrients
ATP

What surrounds each muscle fiber?

Endomysium

Near one or more capillaries
Makes contact with the terminal portion of a neuron


Endomysium

This muscle type is red
fatigue-resistant
Lots of mitochondria

Slow-twitch oxidative muscle

This muscle type is red
prolonged contraction, with low power.
includes postural muscle in the back

Slow-twitch oxidative muscle

This muscle type is white
it is anaerobic
it has fewer mitochondria but lots of glycogen

Fast-twitch glyolytic muscles

This muscle type is white
It is strong, has rapid contractions, but fatigues easily.
It includes the upper limbs

Fast-twitch glycolytic

This muscle type has intermediate fibre-types.
It is also common in legs.

Fast-twitch oxidative muscle

Muscles are a mixture of _______________ fibre types
In some muscles one fibre type dominates over another

All three

What are some things that provoke change in a skeletal muscle?

Age
use vs disuse atrophy
regeneration
Anabolic steroids
types of training

One muscle cell formed by the fusion of hundreds of embryonic cells is =

one muscle fibre

Striations of skeletal muscle result from the arrangement of thick and thin ________________

Myofilaments

Myofilament contains both __________ & ____________

Myosin(thick) & Actin(Thin)

What are the contractile proteins?

Myosin ( thick)
actin (thin)
Tropomyosin
Troponin

What is the function of tropomyosin?

Blocks active site during rest

What is the function of Troponin

Controls the position of tropomyosin

Which muscle group is this?

Primarily attached to bones or skin
Striated / voluntary
multinucleate`
Skeletal muscle

Which muscle type is this?

Found in heart
Partially striated / Involuntary

Cardiac Muscle

Which muscle type is this?

Visceral organs and structures / blood vessels
Non striated / involuntary

Smooth muscle tissue

4 basic properties of muscle tissue?

Excitability
Contractibiliy (Cardiac muscle)


extensibility


elasticity



What is needed for muscle contraction?

Rich blood supply


ATP


Nutrients
Oxygen

_______________ (Surrounds each muscle fiber)

Near one or more capillaries
makes contact with the terminal portion of neuron

Endomysium

Which muscle type is this?
Red
Fatigue-resistant
Lots of mitochondria
Prolonged contration, low power
postural muscle in the back.

Slow-twitch Oxidative

Which muscle type is this?
White
anaerobic
Few mitochondria but lots of glycogen
Strong, rapid contractions, but fatigue easily
Upper limbs

Fast-twitch glycolytic

Which muscle group is this?
Intermediate fibre type (Common in legs)

Fast-twitch oxidative

Muscles are mixtures of all ______ fibre types
In some muscles, one fibre type ____________ over another.
Proportion of fibre types depends to a great degree upon genetics and training

three, dominates

What are the two contractive proteins?

Myosin(thick)
Actin (thin) active sites to bind with myosin

________________: Blocks active site during rest

Tropomyosin

________:Controls the position of tropomyosin

Troponin

______________ ( Contractile unit)
Repeating units of myofilament down the length of a myofilbril

Sacromere

Neuromuscular Junction

1.Action potential (Nerve impulse) causes release of the neurotransmitter _________________

2. ____(Same as above) crosses the synaptic cleft.

3. _______ to the sarcolemma and initiates AP in muscle

4. Ap travels through the __________

Acetylcholine (Ach)

Ach

Binds

T-tubules

Contraction

1._______ from the SR binds to troponin removing tropomyosin from the actin active site

2. _______ can then bind to the actin

3. Myosin uses energy (____ + _) - pivoting the head of myosin, causing displacement of actin
4. ____ joins myosin and it releases.

Calcium
Myosin
ADP + P
ATP

Origin: Begins - generally the ________ attachment

stationary

Insertion: "ends' - generally the _____________ attachment

moveable

asd

asd