Nervous System Flashcards
Cerebellum
Found beneath the cerebrum and behind the brainstem. Helps coordinate body movements, posture, and balance
Brainstem
Found between thalamus and the spinal cord. Connects brain with spinal cord. Breathing, heart rate, and bloodpressure
Cerebrum
Largest and part of the forebrain. Controls higher-order functions such as interpreting touch, speech and language, reasoning, emotions, and fine motor control.
Cerebral Cortex
is grey matter that surrounds the entire cerebrum. divided into left and right hemispheres.
Gyri
Ridges of the cerebral cortex
Sulci
Grooves of the cerebral cortex
Fissures
Very large grooves in the cerebral cortex
Frontal Lobe
Process higher-level cognitive skills, reasoning, concentration, motor skills, language, and functions as a control center for emotions
Parietal Lobe
Integration site for visual perception and sensory information such as touch, pain, and pressure
Temporal Lobe
Organizes sounds and processes language that is heard. helps form memories, speech perception, and language skills.
Occipital Lobe
Interprets visual stimuli and information
Sensory neurons
Afferent nerve cells that send information to the CNS. Sensed from the external environment
Motor Neurons
Efferent Nerve cells that receive impulses form CNS and sends to the effectors
Interneurons
Act as a bridge between motor and sensory neurons.
Limbic system
Controls emotion and memory
Hypothalamus
Rgulates autonomic nervous sytem. Concerned with homeostaasis. Works with pituitary gland.
Amygdala
Recognized as the aggression center. Areas of this region produce feelings of anger violence fear and anxiety.
Thalamus
Sends sensory input to the cerebral cortex. Smell does not pass through thalamus.
Hippocampus
helps convert short-term memory to long-term memory. If hippocampus is damaged new memories can’t form
