Biology - Mock Test 86

Question 851

The difference in charge between inside and outside environment (change in voltage) of the nerve cell membrane is measured by ______ ?

A) Oscilloscope B) Electrocardiogram C) Stethoscope D) Laparoscope

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Question 852

Which portion of the brain is responsible for various emotions such as pleasure, fear, and happiness?

A) Thalamus B) Reticular formation C) Hypothalamus D) Limbic system

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Question 853

The basic cyclic pattern of inspiration and expiration are established by a respiratory center within the ______ ?

A) Cerebellum B) Medulla oblongata C) Cerebral cortex D) Thalamus

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Question 854

Spinal cord and brain are wrapped in protective membranes known as ______ ?

A) Axomembranes B) Meninges C) Nodes of Ranvier D) Myelin sheath

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Question 855

Skeletal muscles are controlled by ______ ?

A) Sympathetic nerves B) Parasympathetic nerves C) Somatic nerves D) Autonomic nerves

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Question 856

Preganglionic neurons lie within the ______ ?

A) Parasympathetic nervous system B) Sympathetic nervous system C) Peripheral nervous system D) Central nervous system

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Question 857

Recording of the electrical activity associated with the heartbeat is called ______ ?

A) Oscilloscope B) Electrocardiogram C) Stethoscope D) Laparoscope

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Question 858

There are ______ pairs of cranial nerves arising from the brain ?

A) 8 B) 12 C) 18 D) 25

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Question 859

During the propagation of a nerve impulse, the action potential results from the movement of ?

A) Na+ ions from extracellular fluid to intracellular fluid B) K+ ions from extracellular fluid to intracellular fluid C) Na+ ions from intracellular fluid to extracellular fluid D) K+ ions from intracellular fluid to extracellular fluid

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Question 860

One of the followings is a naturally occurring compound which reduces the sensation of pain and generates feelings of well-being?

A) Acetylcholine B) Dopamine C) Endorphin D) Epinephrine

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