Beth Anderson's Extra Credit due on Nov. 27, 2009 on muscles
testosterone, human growth hormone
what stimulates hypertrophy
thread-like structures which have a contractile function
function in the contractile process
release of Ca++ from Sarcoplasmic Reticulum trigers what?
binds oxygen molecules
function of myoglobin
skeletal muscle fiber
each branch of the axon from the somatic motor neuron extends to a different what?
skeletal, cardiac, smooth
list the 3 types of muscle tissue
what do most skeletal muscles move?
what type of muscular tissue is striated
alternating light and dark, skeletal
what type of bands are seen in what muscle examined under a microscope
what muscle tissue is voluntary
example of subconsciously controlled skeletal muscle
muscle found only in the walls of the heart
what muscle is controlled involuntarily?
what is the contraction and relaxation of the heart initiated by, is a node of tissue
what muscle is located in the walls of hollow internal structures
bv's, airways, many organs
where is smooth muscle found?
producing body movements, stabilizing body positions, moving substances within body, generating heat
what are the functions of muscular tissue
examples of the function "producing body movements"
examples of the function "stabilizing body positions"
heart muscle pumping blood, moving substances in digestive tract
examples of the function "moving substances within the body"
contracting muscles produce heat, shivering increases heat production
examples of the function "generating heat"
excitability, contractility, extensibility, elasticity
list the properties of muscular tissue
ability to respond to stimuli
ability to contract forcefully when stimulated
ability to stretch without being damaged
ability to return to an original length
dense sheet or broad band of irregular CT that surrounds muscles
the outermost layer
surrounds numerous bundles of fascicles
separates individual muscle fibers from one another
cord that attaches a muscle to a bone
broad, flattened tendon (attach the muscle to the structures that they move)
somatic motor neuron
neuron that stimulates skeletal muscle to contract
the what of a somatic motor neuron typically branches many times
each muscle fiber is in close contact with one or more of what?
the what of skeletal muscle fibers is set before you are born, and last a lifetime
what retains the capacity to regenerate damaged muscle fibers
the plasma membrane of a muscle cell
what tunnels into the plasma membrane
the cytoplasm of a muscle fiber
synthesis of ATP
function of glycogen in sarcoplasm
myoglobin releases oxygen needed for what?