Cerebral Hemispheres II

Question 1

Primary motor cortex

Answer 1

-located in the pre-central gyrus
-conscious control of skeletal muscles
-regions of the body are “mapped out” in the cortex
(body represented upside-down and crossed, and more cortex area for body regions with more precise motor control)

Question 2

Premotor cortex

Answer 2

-helps plan skeletal muscle movements

Question 3

Broca’s area

Answer 3

• directs muscles involved with speech

- only present in one hemisphere (usually the left)

Question 4

Sensory areas

Answer 4

(Receives sensory input and allows conscious awareness of sensations)

• primary somatosensory cortex
• other regions of the cortex dedicated to processing input from other senses (primary visual cortex, primary auditory cortex, etc.)

Question 5

Motor areas

Answer 5

• primary motor cortex
• premotor cortex
• Broca’s area
• Wernike’s area

Question 6

Primary somatosensory areas

Answer 6

-receives touch and stretch input
-also had body mapping
(more cortex devoted to areas with more receptors, and represented upside-down and crossed)

Question 7

Association areas

Answer 7

-allows interpretation of sensory information, and direction of motor regions: conscious thoughts, and emotions

Question 8

Major association areas

Answer 8

• prefrontal cortex
• posterior association region
• limbic association region: emotions

Question 9

Prefrontal cortex

Answer 9

-involved with intellect, personality, and working memory

Question 10

Posterior association region

Answer 10

• recognizing patterns and faces
• localizing things in space
• understanding language