Question 1

Which directional term is unique to the central nervous system and means 'toward the nose'?

Accepted Answer

Rostral

Question 2

Which of the following is NOT a function controlled by the brain?

Accepted Answer

Digestive enzyme secretion in the stomach

Question 3

The brain is classified into four major regions. Which region is responsible for smoothing and coordinating body movements?

Accepted Answer

Cerebellum

Question 4

Which structure connects the third and fourth ventricles of the brain?

Accepted Answer

Cerebral aqueduct

Question 5

Which of the following statements about the ventricles of the brain is TRUE?

Accepted Answer

The third ventricle is connected to the fourth ventricle by the cerebral aqueduct.

Question 6

Which part of the brain is primarily involved in autonomic functions such as heart rate and respiratory rate?

Accepted Answer

Medulla oblongata

Question 7

Damage to which brain region is most likely to result in loss of balance and unsteady movements, but not paralysis or intellectual impairment?

Accepted Answer

Cerebellum

Question 8

Which of the following is a function of the hypothalamus?

Accepted Answer

Regulation of sleep-wake cycles

Question 9

The pineal gland, located in the epithalamus, secretes which hormone that helps regulate circadian rhythm?

Accepted Answer

Melatonin

Question 10

Which fissure separates the cerebrum from the cerebellum?

Accepted Answer

Transverse fissure

Question 11

Which lobe of the cerebral cortex is primarily responsible for processing visual information?

Accepted Answer

Occipital lobe

Question 12

Which area of the cerebral cortex is involved in conscious awareness of general somatic senses and is located along the postcentral gyrus?

Accepted Answer

Primary somatosensory cortex

Question 13

Which type of fiber tract allows communication between the two cerebral hemispheres?

Accepted Answer

Commissural fibers

Question 14

Which structure is the largest commissure in the brain, allowing communication between the left and right hemispheres?

Accepted Answer

Corpus callosum

Question 15

Which functional area of the cerebral cortex is responsible for planning and initiating voluntary motor functions?

Accepted Answer

Motor areas

Question 16

Which brain system is widely spread in the forebrain and is known as the 'emotional brain'?

Accepted Answer

Limbic system

Question 17

Which of the following is a function of the reticular activating system (RAS)?

Accepted Answer

Maintaining consciousness and alertness

Question 18

Which layer of the meninges is the strongest and is composed of two layers?

Accepted Answer

Dura mater

Question 19

Cerebrospinal fluid (CSF) is formed in which structure of the brain?

Accepted Answer

Choroid plexuses

Question 20

Which of the following substances can pass through the blood-brain barrier?

Accepted Answer

Alcohol

Central Nervous System: Brain – Structure and Organization

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