NPB 101L LAB 1 QUESTIONS & ANSWERS
Transducer - answers -a device that converts energy from one form to another
Force, voltage, grams - answers -our transducer converts _____ deflection (kinetic
energy) and to _____, then sending data to the computer. Calibrating this using weights
will tell us how many ____ a deflection equates to
Decade - answers -this multiplies the corresponding dial by a factor of 10
Delay - answers -this adjusts the time between when the signal is created and when it
is received. Visually, it moves your data left and right on the screen.
Voltage - answers -increasing this will make your data taller(for a single peak)
Frequency - answers -increasing this will increase the number of peaks per unit time
Duration - answers -increasing this will make your data wider (for a single peak)
Muscle fibers, fasciculus - answers -skeletal muscle is made up of long multinucleated
_____ _____ (individual cells) stretching from end to end of the ______ (bundle)
Myofibrils - answers -protein structures that make up muscle fibers
Actin - answers –
Thin filaments; along with thick filaments, make up myofibrils
Myosin - answers
, -thick filament; along with thin filaments, make up myofibrils
Sarcomere - answers –
A ______ is a single functional contractile unit and consists of the space between 2 z
bands (which connect the actin ends together)
Motor neurons - answers -neurons that carry outgoing information from the brain and
spinal cord to the muscles and glands; branch to innervate many individual muscle
fibers
Motor unit - answers -a motor neuron and all of the muscle fibers it innervates
Sciatic nerve - answers -nerve extending from the base of the spine down the thigh,
lower leg, and foot
Fascicles - answers -a nerve contains many axons bundled in groups called ______
Largest, smallest - answers -normally the spinal cord can activate motor neurons in its
preferred order; artificial stimulation recruits in the opposite order (______ to ______)
because large diameter axons have a lower threshold to stimulation
Henneman size principle - answers -the _______ states that motor units are recruited
from smallest to largest
Transducer - answers -a device that converts energy from one form to another
Force, voltage, grams - answers -our transducer converts _____ deflection (kinetic
energy) and to _____, then sending data to the computer. Calibrating this using weights
will tell us how many ____ a deflection equates to
Decade - answers -this multiplies the corresponding dial by a factor of 10
Delay - answers -this adjusts the time between when the signal is created and when it
is received. Visually, it moves your data left and right on the screen.
Voltage - answers -increasing this will make your data taller(for a single peak)
Frequency - answers -increasing this will increase the number of peaks per unit time
Duration - answers -increasing this will make your data wider (for a single peak)
Muscle fibers, fasciculus - answers -skeletal muscle is made up of long multinucleated
_____ _____ (individual cells) stretching from end to end of the ______ (bundle)
Myofibrils - answers -protein structures that make up muscle fibers
Actin - answers –
Thin filaments; along with thick filaments, make up myofibrils
Myosin - answers
, -thick filament; along with thin filaments, make up myofibrils
Sarcomere - answers –
A ______ is a single functional contractile unit and consists of the space between 2 z
bands (which connect the actin ends together)
Motor neurons - answers -neurons that carry outgoing information from the brain and
spinal cord to the muscles and glands; branch to innervate many individual muscle
fibers
Motor unit - answers -a motor neuron and all of the muscle fibers it innervates
Sciatic nerve - answers -nerve extending from the base of the spine down the thigh,
lower leg, and foot
Fascicles - answers -a nerve contains many axons bundled in groups called ______
Largest, smallest - answers -normally the spinal cord can activate motor neurons in its
preferred order; artificial stimulation recruits in the opposite order (______ to ______)
because large diameter axons have a lower threshold to stimulation
Henneman size principle - answers -the _______ states that motor units are recruited
from smallest to largest
