Properties of muscles
ability of muscle to recoil to original resting length after stretched
Elasticity
A muscle that works with another to produce the same or similar movement is called?
A synergist
The plasma membrane of a muscle cell is called the:
A. Sarcolemma
B. Sarcoplasmic reticulum
C. Sarcoplasm
D. Synapse
C. Sarcoplasm
Light bands
I band
What muscle is the prime mover in sucking through a soda straw?
Buccinator
ability of a muscle to shorten with force
Contractility
A muscle somewhat like a feather, with fibers obliquely approaching its tendon from both sides is called a __________ muscle. ( think shape)
Bipennate
modified ER
Sarcoplasmic reticulum
contains thick and thin filaments
overlap zone
A bundle of muscle fibers surrounded by perimysium is called?
A fascicle
muscle can be stretched to its normal
resting length and beyond to a limited degree
Extensibility
Which muscle(s) can contract without the need for nervous stimulation?
A. skeletal muscle
B. smooth muscle
C. cardiac muscle
D. smooth and cardiac muscle
E. skeletal, smooth and cardiac muscle
D. smooth and cardiac muscle (Involuntary muscles)
cell membrane
Sarcolemma
"Dark bands"
A Bands
The _______ is the muscle that generates the most force in a given joint movement. (also called a agonist)
Prime mover
capacity of muscle to respond to a stimulus
Excitability
The minimum stimulus needed to cause muscle contraction is called:
A. Threshold
B. The latent period.
C. Twitch
D. Innervation
A. Threshold
infoldings of the sarcolemma
Transvesrse tubules (T-tubules)
contains thick filaments only
H zone
A circular muscle that closes a body opening is called a ___________
Sphincter
an excitation wave travels a distance away from where the muscle fiber was stimulated. It does not just cause a local affect.
Conductivity
Which muscle type depends mostly on the sarcoplasmic reticulum as its calcium source?
A. Skeletal muscle
B. Smooth muscle
C. Cardiac muscle
D. Skeletal and smooth muscle
E. Smooth and cardiac muscle
A. Skeletal muscle
bundles of thick and thin filaments
Myofibrils
dark band in center where myosin bands
connect
M line
think "Middle"
The protein that acts as a calcium receptor in skeletal muscle is
A. F actin
B. Tropomyosin
C. Troponin
D. Titin
E. Dystrophin
C. Troponin