Chapter 4 Flashcards
The central nervous system consist of the what two parts
Brain and spinal cord
What are the two divisions of the autonomic nervous system
Sympathetic and parasympathetic
What impulses travel toward the central nervous system
Afferent
What impulses travel away from the central nervous system
Efferent
- An impulse traveling into a neuron enters at the_______, is processed in the_______, and moves onto the next neuron or organ through the_______.
Dendrite, cell body, axon
- The white, fatty coating on some neurons is called
Myelin
- The junction between two neurons or a neuron and an organ is called the________.
Synapse
- The four main divisions of the brain are the _______, the _______, the _______, and the_______.
Frontal lobe, parietal lobe, temporal lobe, and occipital lobe
- The bundles of neural processes that transmit impulses between the brain and spinal cord are called _______. The processes that communicate within a hemisphere are called_______and processes that communicate between hemispheres are called_______.
Tracts, association fibers, commissural fibers
9.The part of the brain that controls voluntary movement is called the________ _______and is located on the_______ ________. The tract that carries motor impulses is called the________ ________.
Frontal lobe, cerebral hemisphere, pyramidal tract
- The structure that maintains general awareness and arousal is called the_________________ _____________.
Reticular formation
- The________provides buoyancy and protects the brain from being jostled. It is found in the_______layer of the meninges.
Cerebral spinal fluid, subarachnoid
The__________ __________are found deep in cerebral hemispheres and play an important part in the control and regulation of movement.
Lateral ventricles
Sensory neurons enter the spinal cord at the _______horn, and motor neurons arise from the _______horn.
Dorsal, ventral
- Muscle tone is maintained by the_______and________ __________reflexes.
Stretch, deep tendon