Human Brain: Structure and Function

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What is the function of the Parietal lobe?

center for hearing and smell

center for vision

center for sensory functions (correct)

center for motor functions and personality

What are the four paired masses of gray matter embedded in the white matter of the cerebrum?

Cerebral hemispheres

Basal nuclei (correct)

Gyri and convolutions

Lobes of the cerebrum

What is the function of the Insula or Island of Reil?

center for motor functions and personality

center for vision

center for hearing and smell

limbic center; center for libido (correct)

What is the function of the Occipital lobe?

center for vision Signup and view all the answers

What is the function of the Frontal lobe?

center for motor functions and personality Signup and view all the answers

What is the function of the Thalamus?

relay station for sensory information Signup and view all the answers

Which structure serves as a relay station between the cerebrum and the rest of the brain and spinal cord?

Thalamus Signup and view all the answers

What is the function of the hypothalamus?

Temperature regulation and hunger control Signup and view all the answers

Which part of the brain connects the pons and cerebellum with the cerebrum?

Mesencephalon Signup and view all the answers

What is the function of the epithalamus?

Formation of the roof of the third ventricle Signup and view all the answers

What is the composition of the hypothalamus?

Mamillary bodies, Tuber cinerum, Infundibulum, Optic chiasma Signup and view all the answers

What is the function of the Sylvian or Cerebral Aqueduct?

Connects the third ventricle with the fourth ventricle Signup and view all the answers

What is the function of the flocculonodular lobe of the cerebellum?

Equilibrium Signup and view all the answers

What is the location of the cerebellum in the cranial fossa?

Posterior cranial fossa Signup and view all the answers

What is the composition of the pons Varolli?

Wholly of white matter Signup and view all the answers

What is the function of the pneumotaxic center in the pons?

Regulation of respiration Signup and view all the answers

What is the shape of the medulla oblongata?

Pyramidal Signup and view all the answers

What is the function of the medulla oblongata in relation to the brain and spinal cord?

Conduction of impulses between the brain and spinal cord Signup and view all the answers

What is the primary function of the collateral blood supply in the brain?

To allow for the equalization of blood circulation in case of an obstruction Signup and view all the answers

Which cranial nerve is responsible for transmitting sensory information from the face, including the forehead, upper eyelid, and eyeball?

Ophthalmic branch of the Trigeminal nerve (V1) Signup and view all the answers

Which cranial nerve is involved in the movement of the tongue?

Hypoglossal nerve (XII) Signup and view all the answers

Which cranial nerve is responsible for the sense of smell?

Olfactory nerve (I) Signup and view all the answers

Which cranial nerve is involved in the movement of the eyeball downward and outward?

Trochlear nerve (IV) Signup and view all the answers

Which foramen does the Ophthalmic branch of the Trigeminal nerve (V1) pass through?

Superior orbital fissure Signup and view all the answers

What is the main function of cerebrospinal fluid?

To support and protect the delicate structures of the brain and spinal cord Signup and view all the answers

Where is the cerebrospinal fluid drained back into the blood?

Through the arachnoid granulations and villi Signup and view all the answers

What is the composition of cerebrospinal fluid in normal individuals?

A clear, colourless liquid with a very small amount of protein Signup and view all the answers

What is the primary source of cerebrospinal fluid?

The choroid plexus Signup and view all the answers

What is the role of the ventricles in the brain?

To fill with cerebrospinal fluid and pass through the craniospinal subarachnoid spaces Signup and view all the answers

What is the Circle of Willis?

An arterial anastomosis at the base of the brain Signup and view all the answers