BIOD 152- Module 2 Exam Questions and Correct Answers (Graded A+)
Name the 4 brain divisions - Answers Cerebrum, brainstem, diencephalon, cerebellum
Name the ventricles of the brain - Answers 2 lateral ventricles, third ventricle, fourth ventricle
What are brain ventricles - Answers Protective cavity of brain filled with CSF
Name the 3 meningeal layers of the brain - Answers dura mater, arachnoid mater, pia mater
What is the dura mater and subdural space?- in brain - Answers Dura: outermost layer, double later
Subdural: space below dura
What is the arachnoid meninx and subarachnoid space?- in brain - Answers arachnoid: loose layer of
connective tissue below the dura
subarachnoid: space below arachnoid, contains blood vessels and CSF
What is the pia mater?- in brain - Answers Thin connective tissue attached to brain, below the arachnoid
What is the choroid plexus? - Answers Network of blood vessels in ventricles of the brain
List functions of CSF - Answers Protects chemical enviro, allows brain to float, cushions brain and spinal
cord
What is the blood brain barrier? - Answers -protective mechanism that helps maintain a stable
environment for the brain
-Formed from astrocytes surrounding brain capillaries
What does the frontal lobe control? - Answers -higher level executive functions: reasoning and decision
making.
-controls motor functions
What does the parietal lobe control? - Answers receives sensory input for touch & taste
What does the occipital lobe control? - Answers processing visual information
What does the temporal lobe control? - Answers hearing and smelling
What is the difference between a primary area and an association area in the brain? - Answers -Primary
areas in each lobe receive information for one type of sensory information
-Association areas act mainly to integrate more than one type of sensory information for purposeful
action.
, What does the primary motor cortex do? and where is it located? - Answers -controls voluntary motor
activity in the hwole body
-Located in Frontal lobe
-Also called precentral gyrus and somatomotor cortex
What does the primary sensory cortex do? and where is it located? - Answers -receives sensory
information from the whole body
-Located in parietal lobe
-also called postcentral gyrus and somatosensory cortex
What does Broca's area do? and where is it located? - Answers -Responsible for speech production
-Located in frontal lobe
What does Wernicke's area do? and where is ti located? - Answers -language comprehension
- Located in the temporal lobe
List the parts of the brain stem - Answers midbrain, pons, medulla oblongata
What does the medulla oblongata do? - Answers -regulates heart rate, breathing, vasoconstriction
-contains reflex centers for vomiting, coughing, sneezing, hiccuping, swallowing
Describe the medulla oblongata - Answers -Anterior to the cerebellum
- between the spinal cord and pons
- has tracts that ascend and descend btwn the spinal cord and brain
What does the pons do? - Answers -regulates breathing
-reflex centers concerned with head movement in responds to visual and auditory stimuli
Describe the pons - Answers -between medulla and midbrain
-contains bundles of axons traveling btwn cerebellum and the rest of CNS
What does the midbrain do? - Answers -Reflexes for higher-level reflexes: visual, auditory, tactile
Describe the midbrain - Answers -Top part of the brain stem
-Relay station for tracts passing btwn the cerebrum and spinal cord or cerebellum
-has superior and inferior colliculi
Name the 4 brain divisions - Answers Cerebrum, brainstem, diencephalon, cerebellum
Name the ventricles of the brain - Answers 2 lateral ventricles, third ventricle, fourth ventricle
What are brain ventricles - Answers Protective cavity of brain filled with CSF
Name the 3 meningeal layers of the brain - Answers dura mater, arachnoid mater, pia mater
What is the dura mater and subdural space?- in brain - Answers Dura: outermost layer, double later
Subdural: space below dura
What is the arachnoid meninx and subarachnoid space?- in brain - Answers arachnoid: loose layer of
connective tissue below the dura
subarachnoid: space below arachnoid, contains blood vessels and CSF
What is the pia mater?- in brain - Answers Thin connective tissue attached to brain, below the arachnoid
What is the choroid plexus? - Answers Network of blood vessels in ventricles of the brain
List functions of CSF - Answers Protects chemical enviro, allows brain to float, cushions brain and spinal
cord
What is the blood brain barrier? - Answers -protective mechanism that helps maintain a stable
environment for the brain
-Formed from astrocytes surrounding brain capillaries
What does the frontal lobe control? - Answers -higher level executive functions: reasoning and decision
making.
-controls motor functions
What does the parietal lobe control? - Answers receives sensory input for touch & taste
What does the occipital lobe control? - Answers processing visual information
What does the temporal lobe control? - Answers hearing and smelling
What is the difference between a primary area and an association area in the brain? - Answers -Primary
areas in each lobe receive information for one type of sensory information
-Association areas act mainly to integrate more than one type of sensory information for purposeful
action.
, What does the primary motor cortex do? and where is it located? - Answers -controls voluntary motor
activity in the hwole body
-Located in Frontal lobe
-Also called precentral gyrus and somatomotor cortex
What does the primary sensory cortex do? and where is it located? - Answers -receives sensory
information from the whole body
-Located in parietal lobe
-also called postcentral gyrus and somatosensory cortex
What does Broca's area do? and where is it located? - Answers -Responsible for speech production
-Located in frontal lobe
What does Wernicke's area do? and where is ti located? - Answers -language comprehension
- Located in the temporal lobe
List the parts of the brain stem - Answers midbrain, pons, medulla oblongata
What does the medulla oblongata do? - Answers -regulates heart rate, breathing, vasoconstriction
-contains reflex centers for vomiting, coughing, sneezing, hiccuping, swallowing
Describe the medulla oblongata - Answers -Anterior to the cerebellum
- between the spinal cord and pons
- has tracts that ascend and descend btwn the spinal cord and brain
What does the pons do? - Answers -regulates breathing
-reflex centers concerned with head movement in responds to visual and auditory stimuli
Describe the pons - Answers -between medulla and midbrain
-contains bundles of axons traveling btwn cerebellum and the rest of CNS
What does the midbrain do? - Answers -Reflexes for higher-level reflexes: visual, auditory, tactile
Describe the midbrain - Answers -Top part of the brain stem
-Relay station for tracts passing btwn the cerebrum and spinal cord or cerebellum
-has superior and inferior colliculi
