4C - Cortical Lobes Flashcards
(10 cards)
Frontal lobe
The largest lobe at the front of the brain, it handles complex thinking, emotions, self-awareness, and parts of personality. It plans voluntary movements, which are sent through the premotor cortex to the primary motor cortex.
Primary Motor Cortex
The primary motor cortex controls voluntary movements by directing skeletal muscles. It works contralaterally—each side of the brain controls the opposite side of the body. More cortex is given to body parts needing precise movement, like the tongue.
Broca’s Area
Producing clear, fluent speech by coordinating movements of the lips, tongue, jaw, and vocal cords (located in front of the left frontal lobe).
Parietal Lobe
Located behind the frontal lobe, it processes body sensations like touch, temperature, and body position. The primary somatosensory cortex handles works contralaterally
Primary Somatosensory Cortex
Different parts of the primary somatosensory cortex process touch from specific body areas. More cortex is given to body parts that are more sensitive or used more, like the lips, which are important for speech and touch.
Occipital Lobe
Located at the back of the brain, the occipital lobe is mainly for vision. Visual info is partly contralateral—inner retina signals cross over, while outer retina signals stay on the same side.
Primary Visual Cortex
Located at the back of the occipital lobe, and is the main area receiving and processing visual information from both eyes.
Temporal Lobe
It in involved in auditory perception and plays an important part in memory, facial recognition, identifying objects and emotional responses to sensory information and memories.
Primary Auditory Cortex
Receives and processes sounds, with different areas associated with high to low pitch.
Wernicke’s area
Located next to the left primary auditory cortex, and is crucial for comprehending sounds of human speech.
