Mimic Test Muscles
What would a lack of acetylocholinesterase n the synaptic cleft would result in?
Excessive, continuous stimulation of the muscle fiber
What is the name of the flat tendons found in various locations in the muscles system?
Fascia
Long distance exercises such as running and swimming have this effect on skeletal muscle tissue:
Fatigue, increased amt of myogoblin in the muscles
Curare, a toxin, blocks the acetycholine receptors on muscle tissue resulting in:
Inability of the muscle to respond to motor nerve stimulus
What is rigor mortis and what causes it?
Lack of ATP
Name the antagonist muscle for- Deltoid
Latissimus dorsi
Muscles allow for kinetic motion, but your motor isn't perfect at converting food to this kinetic energy. What happens to the rest of the energy that isn't transferred into movement?
Lost as heat
How does the bicep brachii muscle respond differently between the activity of lifting a pencil and lifting a book?
More muscles units for a book than a pencil
What makes up a motor unit?
Motor neuron and the muscle fibers it innervates
What kind of muscle would make up a heart?
Cardiac muscle
What is the function of ACH?
Triggers Action Potential
What are the effects of Anabolic steroids?
-Builds muscle protein -Increases muscle strength - Can cause various health issues
Describe Cardiac muscle and how it is similar/different from skeletal
-Makes up myocardium of heart -Involuntary -Single Nucleus -Intercalated
Each muscle fiber is surrounded by a connective tissue called
Endomysium
Name the antagonist muscle for- Tricep Brachii
Bicep Brachii
The semitendinosus is one hamstring muscle. What are the other muscles that make up the hamstring?
Bicep femoris
Which term is the smallest subdivision in this group?
Myofilament
Name the antagonist muscle for- Bicep Femoralis
Quadriceps femoris
Rhomboid
Serratus Anterior
What kind of muscle would make up a bicep?
Skeletal muscle
What kind of muscle would make up a stomach?
Smooth muscle
Describe the skeletal muscle appearance and function
Striated, voluntary, multinucleate
When a nervous impulse travels from a neuron to a muscle cell, what happens next?
The impulse travels over the sarcolemma
What does the term all or none mean?
The motor neuron either releases all the way or none at all, no in between.
Name the antagonist muscle for- gastrocnemius
Tibialis anterior
Which muscle enables you to elevate your scapula?
Trapezius
The two major regulatory proteins found in muscle are called?
Troponin and tropomyosin
True or false, Muscle fiber contraction is all or none?
True
What is fibromyaligia?
a muscular disorder characterized by painful musculoskeletal "tender points"
What is the smallest contractile unit of muscle called?
sarcomere
What is muscular dystrophy?
skeletal muscle degeneration