Chapter 6 and 7 Skeletal Muscle Flashcards Preview

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Flashcards in Chapter 6 and 7 Skeletal Muscle Deck (14):
1

A + I band =
A band is ___ I band is ___

What causes something to be dark

Sarcomeres

Dark, light

Myosin

2

Z disk is where what is attached

Actin

3

___ gets in way of myosin binding with actin

Tropomyosin

4

Isometric =

Isotonic=

Constant force and moving muscle

Muscles contracting but not moving

5

Slow oxidative I fibers

Myosin ATP activity
Contraction speed
Fatigue resistance
Oxidative capacity
Anaerobic enzyme content

Low
Slow
High
High
Low

6

Slow oxidative I

Mitochondria
Capillaries
Myoglobin content
Fiber color
Glycogen content
Fiber diameter

Many
Many
High
Red
Low
Small

7

Fast glycolytic

Myosin ATP activity
Contraction speed
Fatigue resistance
Oxidative capacity
Anaerobic Enzyme content

High
Fast
Low
Low
High

8

Fast glycolytic

Mitochondria
Capillaries
Myoglobin content
Fiber color
Glycogen content
Fiber diameter

Few
Few
Low
White
High
Large

9

Mitochondria: ___ high ___ low

Cytoplasm: ___ high ___ low

ATP, ADP

ADP, ATP

10

What happens at neurons but not neuromuscular junction

What happens only in neuromuscular junction

IPSP

EPSP

11

Corticospinal: where most of ___ is. Lose this will be ____. Starts at ___, runs through ___ ___, to ___ ___.

Strength. Paralyzed. Cortex, medulla oblongata, spinal cord

12

Rubrospinal starts in what

Reticulospinal starts in what

These are involved in ___ and ___ activities

Red nucleus

Reticular formation

Starting and stopping

13

Dorsal column medial lemniscus

Involved in ___ and ___

Takes place where

Fine touch and kinesthesis

Dorsal root ganglion

14

Spinothalamic

___ and ___

How it's different from DCML

Pain and temperature

Synapses right away, DCML doesn't until medulla