Exam 1 Part 7 Flashcards
True or false: The more rapid and precise a body movement is, the greater likelihood that an error will occur
True
The greater likelihood of an error, the _______ the cerebellum will work to prevent the error
Harder
Part of the brain that is responsible for sensory relay station, receives afferent information being transmitted from the body and directs it for processing, receives motor plans from cerebellum and sends refined plans for motor execution
Thalamus
Part of the brain that functions in the initiation of movement, muscle tone maintenance, and inhibition of extraneous movements
Basal ganglia
What are the 3 substructures of the basal ganglia?
Caudate nucleus, putamen, globus pallidus
If someone does not have an inhibition of extraneous movements, what would it look like?
Would not be able to control smooth/controlled movement, speech would be fast and not smooth
Transmits sensory information to the brain and motor information from the brain to the body
Spinal cord
Where does the spinal cord begin?
Medulla
Where does the spinal cord narrow?
Conus medullaris
Where does the spinal cord end?
Conus meduallaris
Spinal cord breaks up into loose strands of nerves called the _______
Cauda equina
What happens during a spinal reflex when a doctor taps your knee??
Afferent signals are sent but efferent signals are sent from the spinal cord in order to bring the body part back to where it should be
What happens if the spinal reflex is hyperactive?
Causes the stretch reflex to resist volitional movement of muscles, in addition to nonvolitional passive movement of muscles
Nerves that control trunk, arms, and legs of the body; also connects the spinal cord to a muscle, organ, or gland
Spinal nerves
How many pairs of spinal nerves do we have?
31
