CBSE Class 11 Biology Neural Control and Coordination Quiz 1

1. Which one of the followings is the function of parasympathetic nervous system?

A Stimulates oil and sweat glands in the skin B Pupil constriction C Acceleration of heart beat D Contraction of hair muscles

2. During resting state, fluid outside axon contains

A low concentration of K B low concentration of Na C low concentration of Cl D high concentration of Cl

3. 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

4. The cutaneous plexus and the papillary plexus consist of

A Specialized cells for cutaneous sensations B A network of arteries to provide dermal supply C A network of nerves to provide dermal sensation D Gland cells that release cutaneous secretions

5. The generation of excitation-contraction coupling involves all the following events except

A Generation of end-plate potential B Release of calcium from troponin C Formation of cross-linkages between actin and myosin D Hydrolysis of ATP to ADP

6. 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

7. Vestibular apparatus is made up of three semi circular canals. These canals lies at ____ degree angle to each other.

A 30 B 45 C 60 D 90

8. At a neuromuscular junction, synaptic vesicles discharge ______.

A Acetylcholine B Epinephrine C Adrenaline D None of these

9. There are ______ pairs of cranial nerves arising from the brain.

A 8 B 12 C 18 D 25

10. When a neuron is in resting state i. e. not conducting any impulse, the axonal membrane is

A Comparatively more permeable to K+ ions and nearly impermeable to Na+ ions B Comparatively more permeable to Na+ ions and nearly impermeable to K+ ions C Equally permeable to both Na+ and K+ ions D Impermeable to both Na+ and K+ ions