Limbic system

Question 1

Which of the following imprints emotional response in the memory?
Mammillary body
Fornix
Amygdala
Hippocampus
Cingulate gyrus

Answer 1

Amygdala

Question 2

Which of the following is NOT an input to the hippocampus?
Prefrontal cortex
Amygdala
Cingulate gyrus
Dentate gyrus
Mammillary body

Answer 2

Mammillary body

Function:??

Question 3

Which of the following structures is not a part of the limbic system?
a) Hippocampus
b) Amygdala
c) Thalamus
d) Hypothalamus

Answer 3

Answer: c) Thalamus

Question 4

What is the primary function of the limbic system?
a) Motor control
b) Sensory processing
c) Emotional regulation
d) Digestive regulation

Answer 4

Answer: c) Emotional regulation

Question 5

The hippocampus is responsible for:
a) Processing emotions
b) Consolidating long-term memory
c) Regulating heart rate
d) Controlling movement

Answer 5

Answer: b) Consolidating long-term memory

Question 6

Which neurotransmitter is commonly associated with the limbic system?
a) Serotonin
b) Dopamine
c) GABA
d) Acetylcholine

Answer 6

Answer: a) Serotonin

Question 7

The amygdala is responsible for:
a) Controlling heart rate
b) Processing fear and other emotions
c) Regulating body temperature
d) Controlling voluntary movements

Answer 7

Answer: b) Processing fear and other emotions

Question 8

Damage to the hypothalamus can result in:
a) Loss of long-term memory
b) Increased appetite and weight gain
c) Inability to control movements
d) Inability to experience emotions

Answer 8

Answer: b) Increased appetite and weight gain

Question 9

Damage to the hypothalamus can result in:
a) Loss of long-term memory
b) Increased appetite and weight gain
c) Inability to control movements
d) Inability to experience emotions

Answer 9

Answer: b) Increased appetite and weight gain

Question 10

The limbic system is also involved in the regulation of the:
a) Respiratory system
b) Immune system
c) Endocrine system
d) Muscular system

Answer 10

Answer: c) Endocrine system

Question 11

The limbic system plays a role in addiction because:
a) It is involved in reward processing
b) It controls muscle movements
c) It regulates body temperature
d) It processes sensory information

Answer 11

Answer: a) It is involved in reward processing

Question 12

The limbic system is interconnected with which other system in the brain?
a) The motor system
b) The somatosensory system
c) The visual system
d) The olfactory system

Answer 12

Answer: d) The olfactory system

Question 13

Which part of the limbic system is responsible for the production of dopamine?
a) Hippocampus
b) Amygdala
c) Thalamus
d) Ventral tegmental area

Answer 13

Answer: d) Ventral tegmental area

Question 14

Which is not of the following is NOT the component of limbic system?
A. Cingulate gyrus
B. Insula
C. Parahippocampal gyrus
D. Subcallosal gyrus
E. Hippocampal formation
F. Caudate Nucleus

Answer 14

F. Caudate Nucleus

Question 15

What is the function of choroid plexus?

Answer 15

• CSF Production
• Blood-CSF Barrier

Question 16

Question 1:
A 35-year-old male patient presents with a history of depression and anxiety. Upon examination, the patient also reports a loss of smell and taste sensation. Which limbic system structure could be potentially affected in this patient?

Answer 16

The loss of smell and taste sensation is suggestive of dysfunction of the olfactory bulb, which is a part of the limbic system. The olfactory bulb receives and processes information about smell, which is closely linked to memory, emotion, and behavior. Dysfunction of the olfactory bulb can result in a range of psychiatric symptoms, including depression and anxiety.

Question 17

A 50-year-old female patient presents with a history of memory loss and difficulty in forming new memories. Upon examination, the patient also exhibits inappropriate emotional responses to certain situations. Which limbic system structure could be potentially affected in this patient?

Answer 17

The patient’s symptoms suggest dysfunction of the hippocampus, which is a part of the limbic system. The hippocampus plays a crucial role in memory formation, particularly in the formation of new memories. Dysfunction of the hippocampus can lead to memory loss and difficulty in forming new memories. Inappropriate emotional responses are also commonly observed in patients with hippocampal damage, as the hippocampus is involved in regulating emotional responses to various stimuli.