click below
click below
Normal Size Small Size show me how
DAANCE
Term | Definition |
---|---|
CNS- Central Nervous System | overall control center of the body & consist of the brain & spinal cord |
PNS- Peripheral Nervous System | consists of the nerves that carry impulses away from the CNS to various parts of the body and those that carry impulses from the periphery back to the CNS |
ANS- Autonomic Nervous System | |
Cerebral Cortex | responsible for essential functions such as thought, learning, memory, consciousness, the feeling of sensations such as pain or heat and the initiation of muscle movement |
Core of the Brain | impulses pass through here to or from the cerebral cortex. one of the core's components serves as a relay station between sensory inputs from the periphery of the body to the cerebral cortex. |
Cerebellum | the coordinating center for both sensory receptors, such as those for vision and hearing, as well as coordination of movement |
Brainstem | lies between the brain's core and the spinal cord inferiorly. consists of the midbrain, pons, and medulla oblongata. contains the important control centers for autonomic nervous system functions, as well as the reticular formation. |
Reticular Formation | responsible for the maintenance of consciousness or arousal |
Pons | has direct connections with the cerebellum- important for coordination of movement |
Medulla Oblongata | contains important centers for the control of blood pressure, heart rate, respiration, and digestion |
Sensory Nerves | nerves that conduct messages back to the CNS from receptors regarding the environment (e.g touch, pain) |
Motor Nerves | nerves that carry out a response formulated in the CNS to a muscles to initiate body movement |
The Cranial Nerves | nerves that have their origin at the base of the brain |
Optic Nerve | 2nd cranial nerve. responsible for sight |
Olfactory Nerve | 1st cranial nerve. responsible for smell |
Auditory Nerve | 8th cranial nerve. responsible for hearing |
Trigeminal Nerve | 5th cranial nerve. supplies sensation to the teeth and jaws. also has motor branches that supply the muscles of mastication. "three pairs" |
Muscles of Mastication | the muscles that are responsible for the jaw movement during chewing |
Facial Nerve | 7th cranial nerve. supplies motor fibers to the muscles of facial expression and allow us to smile, frown, wrinkle our brow, etc. |