Chapter 6 and 7 Skeletal Muscle Flashcards
A + I band =
A band is ___ I band is ___
What causes something to be dark
Sarcomeres
Dark, light
Myosin
Z disk is where what is attached
Actin
___ gets in way of myosin binding with actin
Tropomyosin
Isometric =
Isotonic=
Constant force and moving muscle
Muscles contracting but not moving
Slow oxidative I fibers
Myosin ATP activity Contraction speed Fatigue resistance Oxidative capacity Anaerobic enzyme content
Low Slow High High Low
Slow oxidative I
Mitochondria Capillaries Myoglobin content Fiber color Glycogen content Fiber diameter
Many Many High Red Low Small
Fast glycolytic
Myosin ATP activity Contraction speed Fatigue resistance Oxidative capacity Anaerobic Enzyme content
High Fast Low Low High
Fast glycolytic
Mitochondria Capillaries Myoglobin content Fiber color Glycogen content Fiber diameter
Few Few Low White High Large
Mitochondria: ___ high ___ low
Cytoplasm: ___ high ___ low
ATP, ADP
ADP, ATP
What happens at neurons but not neuromuscular junction
What happens only in neuromuscular junction
IPSP
EPSP
Corticospinal: where most of ___ is. Lose this will be ____. Starts at ___, runs through ___ ___, to ___ ___.
Strength. Paralyzed. Cortex, medulla oblongata, spinal cord
Rubrospinal starts in what
Reticulospinal starts in what
These are involved in ___ and ___ activities
Red nucleus
Reticular formation
Starting and stopping
Dorsal column medial lemniscus
Involved in ___ and ___
Takes place where
Fine touch and kinesthesis
Dorsal root ganglion
Spinothalamic
___ and ___
How it’s different from DCML
Pain and temperature
Synapses right away, DCML doesn’t until medulla
