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What are the four subdivisions of the brain? - 🧠 ANSWER ✔✔cerebrum,
diencephalon, brainstem, cerebellum
What is gray matter? - 🧠 ANSWER ✔✔short, nonmyelinated neurons and
cell bodies, some is organized into nuclei.
,What is white matter? - 🧠 ANSWER ✔✔myelinated axons
How is gray and white matter organized in the spinal cord? - 🧠 ANSWER
✔✔Central cavity surround with gray matter in a butterfly shape, which is
surround with white matter
How is gray and white matter organized in the brain? - 🧠 ANSWER
✔✔Central cavity surrounded with gray matter. Some nuclei scattered.
outside of cerebrum and cerebellum is covered in gray matter. Rest is white
matter.
What are ventricles? - 🧠 ANSWER ✔✔Spaces in the brain filled with
cerebral spinal fluid and lined with ependymal cells
What are the four ventricles of the brain? - 🧠 ANSWER ✔✔two lateral
ventricles, third ventricle, fourth ventricle
What separates the two lateral ventricles? - 🧠 ANSWER ✔✔septum
pellucidum
Where is the third ventricle located? - 🧠 ANSWER ✔✔diencephalon
,Where is the fourth ventricle located? - 🧠 ANSWER ✔✔between pons and
cerebellum
Where are the lateral ventricles located? - 🧠 ANSWER ✔✔cerebral
hemispheres
What connects the third and fourth ventricles? - 🧠 ANSWER ✔✔cerebral
aqueduct
What are the 3 apertures and what do they do? - 🧠 ANSWER ✔✔2 Lateral
apertures & 1 median aperture connect the ventricles to the subarachnoid
space
What are the lobes of the brain? - 🧠 ANSWER ✔✔frontal, parietal, occipital,
temporal, insular
What separates gyri? - 🧠 ANSWER ✔✔sulci
What separates the precentral and the postcentral gyrus? - 🧠 ANSWER
✔✔The Central Sulcus
What is the cerebral cortex and what does it do? - 🧠 ANSWER ✔✔outer
layer of the cerebrum, responsible for conscious behaviour
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, what are the functional areas of the cerebral cortex? - 🧠 ANSWER
✔✔Motor, Sensory & Association
How is the brain contralateral? - 🧠 ANSWER ✔✔Each hemisphere of the
brain handles sensory & motor functions of the opposite side of the body
How is the brain lateralized? - 🧠 ANSWER ✔✔Although the brain is
symmetrical, one side might do more than the other.
Where are the motor areas? - 🧠 ANSWER ✔✔posterior part of the frontal
lobe
Where is the primary motor cortex located? - 🧠 ANSWER ✔✔precentral
gyrus
What does the primary motor cortex do? - 🧠 ANSWER ✔✔Responsible for
the control of skeletal muscles.
What muscles need the most precise motor control? - 🧠 ANSWER ✔✔The
face, fingers and the hands
Where is the premotor cortex located? - 🧠 ANSWER ✔✔anterior to primary
motor cortex