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Biology (Semester 2) > CNS & Endocrine MCQs > Flashcards

CNS & Endocrine MCQs Flashcards

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1
Q
  1. Which of the following correctly describes the order of a homeostatic response:

A. stimulus, receptor, integrator, effector, response
B. stimulus, integrator, receptor, effector, response
C. response, stimulus, effector, receptor, integrator,
D. integrator, stimulus, receptor, effector, response

A

A. stimulus, receptor, integrator, effector, response

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2
Q

In homeostasis which of the following sets the range of values within which a defined condition should be maintained:

A. Receptor
B. Control centre
C. Effector
D. Ganglion

A

B. Control centre

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3
Q

Which of the following does not increase cardiac output:

A. Increased blood volume
B. Increased skeletal muscle pump
C. Increased respiratory pump
D. Increased number of red blood cells

A

D. Increased number of red blood cells

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4
Q

Which of the following does not send nerve impulses to the cardiovascular centre in the medulla:

A. Limbic system
B. Cerebral cortex
C. Cerebellum
D. Hypothalamus

A

C. Cerebellum

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5
Q

Which of the following is a neuromuscular disease leading to fluctuating muscle weakness:

A. Myasthenia Gravis
B. Cushing’s disease
C. Syphillis
D. Addinsons disease

A

A. Myasthenia Gravis

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6
Q

Which section of the spinal cord if irritated could lead to kidney problems:

A. Cervical
B. Thoracic
C. Lumbar
D. Sacrum

A

B. Thoracic

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7
Q

Which sensory nerve is responsible for transmitting information about smell:

A. I
B. II
C. III
D. IV

A

A. I

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8
Q

Which arm of the nervous system uses only 1 motor neurone in the efferent pathway:

A. Sympathetic
B. parasympathetic
C. Somatic
D. Autonomic

A

C. Somatic

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9
Q

Which type of ganglia innervates above the diaphragm in the sympathetic system:

A. Dorsal root ganglia
B. terminal ganglia
C. prevertebral ganglia
D. trunk ganglia

A

D. trunk ganglia

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10
Q

Which neurotransmitter do preganglionc sympathetic neurones uses:

A. Dopamine
B. Noradrenaline
C. Adrenaline
D. Acetylcholine

A

D. Acetylcholine

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11
Q

Which sensory receptor found in the skin is sensitive to pressure:

A. Merkel disk
B. Meissner corpuscle
C. Pacinian corpuscle
D. Ruffini corpuscle

A

C. Pacinian corpuscle

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12
Q

Which second messenger does Olfactory epithelium use to transmit information regarding odorant molecules:

A. cAMP
B. Na+
C. IP3
D. PKA

A

A. cAMP

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13
Q

Which of the following is an altered perception of smell in the presence of an odour, usually unpleasant:

A. Anosmia
B. Parosmia
C. Agnosia
D. Dysosmia

A

B. Parosmia

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14
Q

In the CNS which of the following lines the ventricles:

A. Microglia
B. Astrocytes
C. Ependymal cells
D. Oligodendrocytes

A

C. Ependymal cells

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15
Q

In the CNS which of the following produces the CSF:

A. Microglia
B. Astrocytes
C. Ependymal cells
D. Oligodendrocytes

A

C. Ependymal cells

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16
Q

In the CNS which of the following is ciliated in newborns:

A. Microglia
B. Astrocytes
C. Ependymal cells
D. Oligodendrocytes

A

C. Ependymal cells

17
Q

Which of these protective layers is bound to the surface of the brain by astrocytes:

A. Dural sinus
B. Dura matter
C. Arachnoid matter
D. Pia matter

A

D. Pia matter

18
Q

Where in the CNS is the Blood brain barrier not disrupted:

A. hypothlamus
B. Pineal gland
C. Pituitary gland
D. Cerebellum

A

D. Cerebellum

19
Q

Which structure drains CSF from the lateral ventricles into the third ventricle:

A. cerebral aqueduct
B. median aperture
C. interventricular foramina
D. lateral apertures

A

C. interventricular foramina

20
Q

In the CNS which of the following has feeding and thirst centres:

A. Medulla
B. Pons
C. Hypothalamus
D. Midbrain

A

C. Hypothalamus

21
Q

Which lobe of the brain contains the motor cortex:

A. Occipital Lobe
B. Temporal Lobe
C. Parietal Lobe
D. Frontal lobe

A

D. Frontal lobe

22
Q

Which of the following is a lipid soluble hormone:

A. Leptin
B. Histamine
C. Melatonin
D. Calcitrol

A

D. Calcitrol

23
Q

Regarding hormones mechanism of action, which of the following is correct:

A. cAMP is a second messenger for lipid soluble hormones
B. Peptide hormones directly regulate mRNA synthesis
C. Cholesterol based hormones work through phosphorylation amplification cascades
D. Phosphodiesterases inactive peptide hormone signalling

A

D. Phosphodiesterases inactive peptide hormone signalling

24
Q

Where is ADH made:

A. Anterior pituitary
B. Posterior pituitary
C. Hypothalamus
D. Kidney medulla

A

C. Hypothalamus

25
Q

Which cell type make hGH:

A. Somatotrophs
B. Thyrotrophs
C. Corticotrophs
D. Gonadotrophs

A

A. Somatotrophs

26
Q

Negative feedback does not control the activity of:

A. Lactotrophs
B. Thyrotrophs
C. Corticotrophs
D. Gonadotrophs

A

A. Lactotrophs

27
Q

Which of the following is regulated by a hypothalamic inhibitory hormone:

A. Corticotropin
B. Growth hormone
C. Thyrotropin
D. Gonadotropin

A

B. Growth hormone

28
Q

In the adrenal cortex where are glucocorticoids produced:

A. Zona medulla
B. Zona glomerulosa
C. Zona fasciculata
D. Zona reticularis

A

C. Zona fasciculata

29
Q

Damage to the pineal gland can cause:

A. Cushings syndrome
B. Seasonal affective disorder
C. Addinsons disease
D. Graves disease

A

B. Seasonal affective disorder

Biology (Semester 2) (11 decks)

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