CNS & Endocrine MCQs Flashcards
- 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. stimulus, receptor, integrator, effector, response
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
B. Control centre
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
D. Increased number of red blood cells
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
C. Cerebellum
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. Myasthenia Gravis
Which section of the spinal cord if irritated could lead to kidney problems:
A. Cervical
B. Thoracic
C. Lumbar
D. Sacrum
B. Thoracic
Which sensory nerve is responsible for transmitting information about smell:
A. I
B. II
C. III
D. IV
A. I
Which arm of the nervous system uses only 1 motor neurone in the efferent pathway:
A. Sympathetic
B. parasympathetic
C. Somatic
D. Autonomic
C. Somatic
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
D. trunk ganglia
Which neurotransmitter do preganglionc sympathetic neurones uses:
A. Dopamine
B. Noradrenaline
C. Adrenaline
D. Acetylcholine
D. Acetylcholine
Which sensory receptor found in the skin is sensitive to pressure:
A. Merkel disk
B. Meissner corpuscle
C. Pacinian corpuscle
D. Ruffini corpuscle
C. Pacinian corpuscle
Which second messenger does Olfactory epithelium use to transmit information regarding odorant molecules:
A. cAMP
B. Na+
C. IP3
D. PKA
A. cAMP
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
B. Parosmia
In the CNS which of the following lines the ventricles:
A. Microglia
B. Astrocytes
C. Ependymal cells
D. Oligodendrocytes
C. Ependymal cells
In the CNS which of the following produces the CSF:
A. Microglia
B. Astrocytes
C. Ependymal cells
D. Oligodendrocytes
C. Ependymal cells
In the CNS which of the following is ciliated in newborns:
A. Microglia
B. Astrocytes
C. Ependymal cells
D. Oligodendrocytes
C. Ependymal cells
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
D. Pia matter
Where in the CNS is the Blood brain barrier not disrupted:
A. hypothlamus
B. Pineal gland
C. Pituitary gland
D. Cerebellum
D. Cerebellum
Which structure drains CSF from the lateral ventricles into the third ventricle:
A. cerebral aqueduct
B. median aperture
C. interventricular foramina
D. lateral apertures
C. interventricular foramina
In the CNS which of the following has feeding and thirst centres:
A. Medulla
B. Pons
C. Hypothalamus
D. Midbrain
C. Hypothalamus
Which lobe of the brain contains the motor cortex:
A. Occipital Lobe
B. Temporal Lobe
C. Parietal Lobe
D. Frontal lobe
D. Frontal lobe
Which of the following is a lipid soluble hormone:
A. Leptin
B. Histamine
C. Melatonin
D. Calcitrol
D. Calcitrol
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
D. Phosphodiesterases inactive peptide hormone signalling
Where is ADH made:
A. Anterior pituitary
B. Posterior pituitary
C. Hypothalamus
D. Kidney medulla
C. Hypothalamus
