MODULE 6 Flashcards
Responsible for actions.
SKELETAL MUSCLES
Attached to bones at each end and move the bones when they
contract.
SKELETAL MUSCLES
provide the force of contraction.
extrafusal muscle fibers
sensitivity to increase muscle length.
intrafusal muscle fiber
moving a limb toward the body,
FLEXION
moving a limb away from the body.
EXTENSION
Responses function to control limb movements when weight is applied or removed quickly and to maintain upright posture.
MONOSYNAPTIC STRETCH
It functions to help regulate the length of an entire muscle.
GAMMA MOTOR SYSTEM
This feedback is used by the brain to help coordinate limb movement.
GAMMA MOTOR SYSTEM
It includes a single synapse involved in simple reflexes like the patellar reflex.
MONOSYNAPTIC REFLEX
It includes multiple synapses involved in more complex reflexive behavior such as inhibiting a withdrawal reflex.
POLYSYNAPTIC REFLEX
It contains at least 1 interneuron
between the sensory neurons and motor neurons.
POLYSYNAPTIC REFLEX
It relays the motor information from the cortex to the muscles of the body through the lateral and ventromedial groups.
DESCENDING PATHWAY
LATERAL GROUP
Corticospinal Tract
Corticobulbar Tract
Rubrospinal Tract
VENTROMEDIAL GROUP
Vestibulospinal Tract
Tectospinal Tract
Reticulospinal Tract
Ventral Corticospinal Tract
It is involved in well-learned
behavioral sequences.
SUPPLEMENTARY MOTOR AREA
It is involved in awareness of decisions to make spontaneous movements.
SUPPLEMENTARY MOTOR AREA
It is involved in learning and executing complex movements guided by verbal instructions.
PRE MOTOR AREA
It controls repetitive movements that require accurate aiming and timing , smoothly guides movements, stop movements, and integrates sequences of movements.
CEREBELLUM
It receives input from the motorcortex regions and direct their output to the ventromedial pathway.
BASAL GANGLIA
It controls inhibition of unwanted
movement.
BASAL GANGLIA
It influences the movements under control of the primary motor cortex
BASAL GANGLIA
