What are the layers of myscular tissue?
- around perimeter (outer most layer)
- surrounds each bundle of fibers
- Inside the bundle of fibers
What is the biochemical pathway in the muscles in Aerobic?
Glucose - Pyruvate - Mitochondria (ATP)
first 2 make Glycolysis and 3rd (TCA cycle or Krebs)
What is the biochemical pathway in the muscles in Anaerobic?
With out oxygen
Glucose - Pyruvate - Lactate
from Lactate it goes back to Pyruvate making a Cori Cycle
(in the liver)
What is the Sliding Muscle Theory of Muscle Contraction?
bind to troponin - Tropomyosin
the binding allows the movement of Myosin heads down the Actin Filaments
What kind of filament is Myosin?
It is Thick Filaments
What kind of filament is Actin?
It is Thin Filaments
What kind of filament is Titin?
It is the retraction of the filaments after contraction
What is Synapse?
Nerve and Muscular
What is Sarcoplasmic Retuculum Release?
What should we know about the Function Unit of Contraction?
M Band (Myosin)
How is Slow Twich discribed?
How is Intemediate Twich discribed?
It is a mixture of slow and fast
How is Fast Twitch discribed?
Lots of mitochondrias and hemoglobins
for short distances (dash)
What is the Muscle Indicator of Damage?
CK - Creatine Kinase
If you have a large amount of CK in your blood in indicates that there is muscle damage (heart attack)
Discribe Skeletal Muscle
Sliding filament theory
Discribe Cardiac Muscle
Intercalated disk (ap Jxn) held together by connexons
Wave like contractions at a specific pace
Found in the heart
Discribe Smooth Muscle
No Intercalated Disks
Cork Screw Contraction
Found in the Stomach / Digestive System
What is an Isotonic Contraction?
Tension in the muscle rises and the length changes
What is Isometric Contraction?
Tension in muscle rises, but the length stays the same
What is Isotonic Concentric?
Tension rises, muscles shortens
What is Isotonic Eccentric?
Tension rises, muscles lengthens
What is CNS?
Central Nervous System
Brain and Spinal Cord
What is PNS?
Peripheral Nervous System
Everything out of the Spinal Cord
What is the Autonomic in the PNS responsible for?
Relaxation Flight or Fight Response
Sacral Chain Cervical Chain
What are the 4 Glial Cells?
Oligodendrocytes (Myelin for nerves)
Astrocytes (Blood, Brain Barriers)
Neuroglial (Immune System) Macrophages
Ependyma (CSF) Cerebro Spinal Fliud
How is Efferent distributed in the CNS?
It goes fron the Brain to the Body
How is Afferent distributed in the PNS?
It goes from the Body to the Brain
Discribe Action Potential
-90 mv = Threshold (AP fires off)
Voltage gated Ions Channels Open
= extracellular Cation
30 mv = Na+ gates closes and K
gates open (intracellular cation)
Discribe Spacial Summation
Adding impulses at the same time changing from different areas
Discribe Tempreal Summation
Adding impluses at the same site, but recieved at different times
Review for Muscle Tissue exam Chapter 10