BIOD 152 Anatomy and Physiology II – Brain Divisions, Cerebral
Cortex, Limbic System, Exam Practice with 100% Correct Answers
This document contains BIOD 152 Module 2 exam questions with verified answers. It
covers brain divisions, cerebral cortex, lobes, limbic system, thalamus, hypothalamus, and
cerebellum. Students can use this as a detailed study aid for understanding both structure
and function of the brain.
Human Brain Divisions - answer✔✔cerebrum, brainstem, diencephalon, cerebellum
What protects the brain? - answer✔✔skull, meninges, and BBB Ventricles of the
brain - answer✔✔cavities within the brain filled with cerebrospinal fluid; 2 lateral,
3rd ventricle, 4th ventricle Meninges - answer✔✔3 layers of connective tissue that
cover and protect the CNS organs and enclose CSF. Dura Mater - answer✔✔thick,
outermost layer of the meninges surrounding and protecting the brain and spinal cord
pia mater - answer✔✔the delicate innermost membrane enveloping the brain and
spinal cord. CSF - answer✔✔special fluid formed in walls of ventricles from blood
plasma by permeating through the choroid plexus; cushions the brain and spinal cord
by providing buoyancy, allowing the brain to float. BBB - answer✔✔diffusion
barrier that prevents most particles from entering CNS tissue; brain and spinal cord
separate from general blood circulation. Formed by impermeable brain capillaries,
due to astrocytes due to need for stable chemical environment. Cerebrum -
answer✔✔largest part of the brain, 83%; includes median longitudinal fissure, left
, - 2 -:
and right cerebral hemispheres, gyri, sulci, and fissures corpus callosum -
answer✔✔A bridge of white nerve fibers that connect cerebral hemispheres
Cerebral cortex - answer✔✔outer region of the cerebrum, containing sheets of
nerve cells; gray matter of the brain Deep sulci - answer✔✔frontal, parietal,
temporal, occipital Frontal sulci - answer✔✔controls higher level executive fx like
reasoning and decision making; controls motor fx and control over voluntary muscle
actions parietal lobe - answer✔✔A region of the cerebral cortex whose functions
include processing information about touch; receive sensory info from receptors in
mouth for taste and in skn four touch, pain, and pressure. Occipital -
answer✔✔interprets visual input Temporal - answer✔✔sensory areas for hearing
and smelling Association areas - answer✔✔act mainly to integrate more than 1
type of sensory info for purposeful action Primary motor cortex - answer✔✔the
section of the frontal lobe responsible for voluntary movement Primary sensory cortex -
answer✔✔regions of the cerebral cortex that initially process information from the
senses Broca's area - answer✔✔controls language expression - an area, usually in
the left frontal lobe, that directs the muscle movements involved in speech; speech
production Wernicke's Area - answer✔✔located in temporal lobe; speech
comprehension Conciousness - answer✔✔state of being awake/aware, located in
the cerebrum. Cerebrum controls: - answer✔✔Cerebrum controls activities of the
lower parts of the brain, can override functioning of lower parts of brain (i.e. via
biofeedback, meditation, etc.), initiates voluntary motor activities and controls actions