Neurophysiology Worksheet PDF

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Neurophysiology Worksheet MCQs 1. Which of the following is NOT a function of the nervous system? a. sense the internal and external environments b. integrate sensory information c. coordinate voluntary and involuntary activities *d. direct long-term functions, such as growth

2. The ________ nervous system is composed of the brain and spinal cord. a. autonomic b. peripheral *c. central d. efferent 3. The ________ nervous system controls the skeletal muscles. a. sympathetic b. parasympathetic c. afferent *d. somatic 4. The efferent division of the peripheral nervous system innervates: a. skeletal muscle cells b. smooth muscle cells c. heart muscle cells *d. All of the answers are correct. 5. Which of the following is NOT a recognized structural classification for neurons? a. anaxonic b. bipolar c. multipolar *d. pseudopolar 6. The site of intercellular communication between a neuron and another cell is the *a. synapse. b. synaptic terminals. c. collateral. d. hillock. 7. Sensory neurons of the peripheral nervous system are *a. unipolar.

b. bipolar. c. anaxonic. d. multipolar. 8. ________ neurons are short, with a cell body between dendrite and axon, and occur in special sense organs. a. Multipolar b. Anaxonic c. Unipolar *d. Bipolar 9. ________ are the most numerous type of neuron in the central nervous system. *a. Interneurons b. Motor neurons c. Unipolar neurons d. Bipolar neurons 10. Most central nervous system neurons lack centrioles. This observation explains a. why central nervous system neurons grow such long axons. *b. why central nervous system neurons cannot divide to regenerate damaged tissue. c. the ability of neurons to generate an action potential. d. the ability of neurons to communicate with each other.

11. The spinal cord is part of the a. peripheral nervous system. b. somatic nervous system. *c. central nervous system. d. autonomic nervous system. 12. Spinal nerves are a. purely sensory. b. purely motor. *c. both sensory and motor. d. interneuronal. 13. The spinal cord consists of five regions and ________ segments. a. 5 b. 12 c. 25 *d. 31 14. The white matter of the spinal cord is mainly

a. unmyelinated axons. b. neuroglia. c. Schwann cells. *d. myelinated and unmyelinated axons. 15. The posterior horns of the spinal cord contain mainly *a. sensory nuclei. b. somatic motor nuclei. c. autonomic motor nuclei. d. nerve tracts. 16. A receptor that contains many mechanically-gated ion channels would function best as a *a. tactile receptor. b. chemoreceptor. c. nociceptor. d. thermoreceptor. 17. Thermoreceptors a. are found within the dermis. b. are free nerve endings. c. are more numerous for cold than for warm temperatures. *d. All of the answers are correct. 18. Receptors that monitor the position of joints belong to the category called a. nociceptors. b. chemoreceptors. c. baroreceptors. *d. proprioceptors. 19. Mechanoreceptors that respond to changes in blood pressure are called a. nociceptors. *b. baroreceptors. c chemoreceptors. d. proprioceptors. 20. Chemoreceptors are located in all of the following, EXCEPT a. carotid bodies. b. aortic bodies. *c. in the skin. d. the organs of taste.

Short Answers 1. Identify all the structures of a neuron labelled A-I

(9 marks)

2. What is the function of the structures labelled A, B and C.

(3 marks)

3. Supply the names and functions of:

a) b) c) d)

Cranial nerve II Cranial nerve IV Cranial verve V Cranial Nerve VII

4. State whether each of the following statements is TRUE or FALSE. a) Afferent neurons carry information from the central nervous system. b) The visual sensory area is located in the frontal lobe. c) Ascending tracts carry motor commands to muscles. d) Frontal lobe is responsible for higher cognitive functions. e) Interneurons are found within the central nervous system. f) Spinothalamic tract carries information about pain and temperature.

(2) (2) (2) (2)

(1) (1) (1) (1) (1) (1)

g) Sensory information enters the spinal cord through the ventral root. h) Spinal nerves carry sensory information only 5. Identify three types of neurons based on their function.

(1) (1) (3 marks)...