Which of the following statements about the autonomic nervous system is INCORRECT?

A The preganglionic fibres in the parasympathetic division are usually long compared to the postganglionic fibres

B The sympathetic division mediates responses that allow the body to respond to 'flight and fright' situations

C The ganglia of the sympathetic division are usually close to the spinal cord

D The adrenal medulla is a sympathetic ganglion

E The parasympathetic nerves arise from the brain stem and the sacral region of the spinal cord

Expert Solution

Statement D is incorrect. Adrenal medulla is the inner most part of adrenal gland, it is not a ganglion.

Sympathetic ganglia are close to spinal cord, so there preganglionic fibers are small. On the other hand, parasympathetic preganglionic fibers are long; therefore, statement "A" and "C" are correct. Statement "B" and "E" are also correct.

gladiator answered 2 years ago

Concerning penile erection, which of the following statements is incorrect? a) The parasympathetic nervous system releases...

Concerning penile erection, which of the following statements is incorrect? a) The parasympathetic nervous system releases nitric oxide b) Nitric oxide activates a G-protein coupled receptor which generates cGMP c) Cytosolic level of cGMP increases d) The cytosolic calcium concentration decreases and this leads to vasodilation e) The sinuses in the corpora cavernosa become engorged with blood Which of the following statements about gastric acid secretion is true? a) In an unstimulated parietal cell the amount of H+-K+-ATPase present is...

1. Which of the following statements about the physiological signals is CORRECT? a. The nervous system...

1. Which of the following statements about the physiological signals is CORRECT? a. The nervous system provides both electrical and chemical signals. b. Chemical signals are the most physiological type of communication within the body. c. Electrical signals are due to Na+, Cl-, K+, and Ca2+ within a cell. d. Chemical signals are secreted by cells into the extracellular fluid. e. Target cells are cells that respond to specific signals. f. All of the above 2. What is TRUE about...

Autonomic nervous system : Is a component of the peripheral nervous system, it regulates involuntary physiologic...

Autonomic nervous system : Is a component of the peripheral nervous system, it regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion. This system works automatically without a person’s conscious effort. Disorders of the autonomic nervous system can affect any body part or process. Autonomic disorders may be reversible or progressive. Apart of the autonomic nervous system there are three anatomically distinct divisions: sympathetic, parasympathetic, and enteric. Somatic nervous system : Contains both afferent nerves (which send information...

how does the autonomic nervous system control digestion? where is the enteric nervous system?

Discuss the breakdown of the Nervous system. Make sure to fully breakdown the autonomic nervous system.

1.) Which portion of the autonomic nervous system must be most active in the genitals for...

1.) Which portion of the autonomic nervous system must be most active in the genitals for vaginal lubrication to occur? a. Parasympathetic b. Sympathetic c. Somatic 2.) The human clinical syndrome in which a fetus produces produce excessive amounts of androgen in the adrenal glands, due to a reduced ability to produce cortisol, which affects external genital formation and results in masculinization of the external genitalia, is known as ________________. a. PCOS (polycystic ovarian syndrome) b. CAH (congenital adrenal hyperplasia)...

Discuss a specific drug that affects the autonomic nervous system.

Define autonomic nervous system and explain its relationship to the peripheral nervous system. Compare the functions...

Define autonomic nervous system and explain its relationship to the peripheral nervous system. Compare the functions of the sympathetic and parasympathetic division of the ANS. Describe the difference between somatic and autonomic motor pathways. Describe a visceral reflex arc. Compare the anatomy of the sympathetic and parasympathetic division of the ANS. Describe major pathways of the parasympathetic division of ANS. Describe sympathetic innervation of the adrenal glands. Describe how neurotransmitters/receptor interact to determine response of effector. Describe the effects of...

13. Which of the following statements is INCORRECT about trading on margin A. It is a...

13. Which of the following statements is INCORRECT about trading on margin A. It is a leveraged equity investment. B. Stocks purchased on margin are registered in street name. C. It increases payoff both on the upside and downside. D. In general, a limit-buy order may be placed to limit potential losses. 17. Consider the following short sale example: an investor borrows 100 shares of a stock from the broker, put down 50% as the initial margin, and sells the...

contrast the sympathetic and parasympathetic divisions of the autonomic nervous system and their effects

Question